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Jupa R, Rosell JA, Pittermann J. Bark structure is coordinated with xylem hydraulic properties in branches of five Cupressaceae species. Plant Cell Environ 2024; 47:1439-1451. [PMID: 38234202 DOI: 10.1111/pce.14824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
The properties of bark and xylem contribute to tree growth and survival under drought and other types of stress conditions. However, little is known about the functional coordination of the xylem and bark despite the influence of selection on both structures in response to drought. To this end, we examined relationships between proportions of bark components (i.e. thicknesses of tissues outside the vascular cambium) and xylem transport properties in juvenile branches of five Cupressaceae species, focusing on transport efficiency and safety from hydraulic failure via drought-induced embolism. Both xylem efficiency and safety were correlated with multiple bark traits, suggesting that xylem transport and bark properties are coordinated. Specifically, xylem transport efficiency was greater in species with thicker secondary phloem, greater phloem-to-xylem thickness ratio and phloem-to-xylem cell number ratio. In contrast, species with thicker bark, living cortex and dead bark tissues were more resistant to embolism. Thicker phellem layers were associated with lower embolism resistance. Results of this study point to an important connection between xylem transport efficiency and phloem characteristics, which are shaped by the activity of vascular cambium. The link between bark and embolism resistance affirms the importance of both tissues to drought tolerance.
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Affiliation(s)
- Radek Jupa
- Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, California, USA
| | - Julieta A Rosell
- Laboratorio Nacional de Ciencias de la Sostenibilidad, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Jarmila Pittermann
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, California, USA
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2
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Singh RD, Gumber S, Singh SP, Singh P. Bark thickness and related parameters of tree species along an elevation transect leading to treeline in Central Himalaya. Environ Monit Assess 2024; 196:441. [PMID: 38598137 DOI: 10.1007/s10661-024-12590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/26/2024] [Indexed: 04/11/2024]
Abstract
Since treelines are generally fire-free, the trees growing there are expected to have thin bark, unless adaptation to other factors than fire results in the selection of a thick bark. Related to this is also higher proportional investment in inner bark in such an environment of infrequent fire. This study has considered stem bark thickness both in absolute and relative terms and also in the frame of the composition of outer and inner bark components of 20 tree species along an elevation transect (2100-3300 m) in high ranges of the Central Himalaya leading to treelines. The study species varied from 2.1 to 16.2 mm for total bark thickness and from 1.2 to 18.85% for relative bark thickness. The average absolute total bark thickness across the tree species decreased with elevation from forest to treeline, both when trees of all diameters (10.2 ± 0.84 mm for forest and 6.9 ± 1.79 mm for treeline) and those of the same stem diameter range (18-20 m) were compared (9.10 ± 1.30 mm for forest species and 6.38 ± 1.31 mm for treeline species). Nevertheless, the treeline bark thickness was similar to those of several forest communities considered to have comparatively thick bark. Like many other biological structures, bark carries out multiple functions; therefore, its thickness could be affected by more than one environmental factor. We suggest that the requirement of mechanical resistance to the snowfall, rainstorms, wind and adaptation to a high sunlight and UV radiations or storage of water, and non-structural carbohydrates could affect total, outer and inner bark thickness. Studies on these aspects in similar ecosystems may help understand the multi-functional attributes of the bark. For trees of comparable sizes (trees with 18-20 cm diameter at breast height) treeline species also had lower relative bark thickness (< 6%) than trees of forest below it (> 7%). The median proportion of inner bark of the total bark (70.5%) for our 20 species was more than that for savannas (~ 50%), exposed to frequent fire regime and similar to those of in cool sclerophyllous forests and temperate rain forests where fire return time is > 100 years. However, it was lower than the inner bark proportion reported for tropical rain forests. To conclude, in spite of a fire-free environment, the Himalayan treeline and adjoining forest species show mixed bark characters.
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Affiliation(s)
- Ripu Daman Singh
- Appropriate Technology India (AT India), Dehradun, 248007, Uttarakhand, India
| | - Surabhi Gumber
- Appropriate Technology India (AT India), Dehradun, 248007, Uttarakhand, India.
| | - Surendra Pratap Singh
- Central Himalayan Environment Association (CHEA)/ Graphic Era Deemed to be University (GEU), Dehradun, 248007, Uttarakhand, India
| | - Pradeep Singh
- G.B. Pant National Institute of Himalayan Environment (GBPNIHE), Kosi-Katarmal, Almora, 263643, Uttarakhand, India
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3
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Balasubramanian B, Raja K, Vignesh Kumar V, Ganeshan P. Characterization study of Holoptelea integrifolia tree bark fibres reinforced epoxy composites. Nat Prod Res 2024; 38:1197-1206. [PMID: 36318867 DOI: 10.1080/14786419.2022.2137505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
This study characterised the composite plate fabricated by epoxy matrix reinforced with alkaline-treated Holoptelea integrifolia tree bark fibre. Tensile and flexural test results clearly show that the mechanical characteristics of pure resin improve in direct proportion to the fibre up to 40%. However, impact test results show that 30% fibre mass ratio composite showed higher mechanical properties. The H. integrifolia fibre composites (HIFC) specimens were also characterised by using Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), Energy dispersive X-ray analysis (EDAX) and thermogravimetric analysis-differential scanning calorimetry (TGA-DSC) analysis. FESEM results show that the bonding between fibre and matrix was excellent. EDAX reveals the elemental proportion of HIFC. O-H, C- H, C-O-C, moisture content and aromatic structure are evident by FTIR spectroscopy. Thermal analysis reveals that the composites degrade rapidly when exposed above 210 °C.
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Affiliation(s)
- B Balasubramanian
- Department of Mechanical Engineering, Chettinad College of Engineering and Technology, Karur, Tamilnadu, India
| | - K Raja
- Department of Mechanical Engineering, University College of Engineering, Dindigul, Tamilnadu, India
| | - V Vignesh Kumar
- Department of Mechanical Engineering, St. Joseph College of Engineering, Chennai, Tamilnadu, India
| | - P Ganeshan
- Department of Mechanical Engineering, Sri Eshwar College of Engineering, Coimbatore, Tamilnadu, India
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Lantschner V, Gomez DF, Vilardo G, Stazione L, Ramos S, Eskiviski E, Fachinetti R, Schiappacassi M, Vallejos N, Germano M, Villacide J, Grilli MP, Martinez G, Ahumada R, Estay SA, Dumois I, Corley J. Distribution, Invasion History, and Ecology of Non-native Pine Bark Beetles (Coleoptera: Curculionidae: Scolytinae) in Southern South America. Neotrop Entomol 2024; 53:351-363. [PMID: 38236322 DOI: 10.1007/s13744-023-01125-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/21/2023] [Indexed: 01/19/2024]
Abstract
The growth of international trade, coupled with an expansion of large-scale pine plantations in South America during the second half of the twentieth century, has significantly increased the opportunities for the invasion of forest insects. Bark beetles (Coleoptera: Curculionidae, Scolytinae) are a large and diverse group of insects, commonly recognized as one of the most important tree mortality agents in coniferous forests worldwide and an important group among invasive forest species. In this study, we combined data from field sampling with published records of established non-native pine bark beetles, to describe their distribution and invasion history in pine plantations across southern South America, reviewing the available information on their phenology and host range. We obtained records of established populations of six Eurasian species distributed in two major regions: the southwest region comprises plantations in Chile and the Argentine Patagonia, with four bark beetle species: Hylastes ater, Hylastes linearis, Hylurgus ligniperda, and Orthotomicus laricis; the northeastern zone includes northeastern Argentina, Uruguay, and southern Brazil, and includes three bark beetle species: Cyrtogenius luteus, H. ligniperda, and O. erosus. The establishment of non-native populations across the study area began in the 1950s, and from the 1980s onwards, there has been an exponential increase in introductions. We predict that several of these species will continue spreading across South America and that new species will continue arriving. We highlight the importance of international collaboration for early detection and management of non-native pine bark beetles.
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Affiliation(s)
- Victoria Lantschner
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Bariloche, Río Negro, Argentina.
| | | | - Gimena Vilardo
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Bariloche, Río Negro, Argentina
| | - Leonel Stazione
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Bariloche, Río Negro, Argentina
| | - Sergio Ramos
- Estación Experimental Agropecuaria Concordia, Instituto Nacional de Tecnología Agropecuaria (INTA), Concordia, Entre Ríos, Argentina
| | - Edgar Eskiviski
- Estación Experimental Agropecuaria Montecarlo, Instituto Nacional de Tecnología Agropecuaria (INTA), Montecarlo, Misiones, Argentina
| | - Romina Fachinetti
- Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales (IMBIV), CONICET - Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | | | - Monica Germano
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Campo Forestal General San Martín, Lago Puelo, Chubut, Argentina
| | - José Villacide
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Bariloche, Río Negro, Argentina
| | - Mariano P Grilli
- Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales (IMBIV), CONICET - Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Gonzalo Martinez
- Instituto Nacional de Investigación Agropecuaria (INIA), Tacuarembó, Uruguay
| | - Rodrigo Ahumada
- Bioforest - Arauco, Silviculture and Forest Health Division, Concepción, Chile
| | - Sergio A Estay
- Universidad Austral de Chile, Instituto de Ciencias Ambientales y Evolutivas, Valdivia, Chile
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Catolica de Chile, Santiago, Chile
| | - Ignacio Dumois
- Departamento de Entomología, Laboratorio Vegetal, SENASA, Buenos Aires, Argentina
| | - Juan Corley
- Grupo de Ecología de Poblaciones de Insectos, Instituto de Investigaciones Forestales y Agropecuarias Bariloche, INTA EEA Bariloche - CONICET, Bariloche, Río Negro, Argentina
- Departamento de Ecología, CRUB, Universidad Nacional del Comahue, Bariloche, Argentina
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Jeffrey LC, Johnston SG, Tait DR, Dittmann J, Maher DT. Rapid bark-mediated tree stem methane transport occurs independently of the transpiration stream in Melaleuca quinquenervia. New Phytol 2024; 242:49-60. [PMID: 37984803 DOI: 10.1111/nph.19404] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/27/2023] [Indexed: 11/22/2023]
Abstract
Tree stem methane emissions are important components of lowland forest methane budgets. The potential for species-specific behaviour among co-occurring lowland trees with contrasting bark characteristics has not been investigated. We compare bark-mediated methane transport in two common lowland species of contrasting bark characteristics (Melaleuca quinquenervia featuring spongy/layered bark with longitudinally continuous airspaces and Casuarina glauca featuring hard/dense common bark) through several manipulative experiments. First, the progressive cutting through M. quinquenervia bark layers caused exponential increases in methane fluxes (c. 3 orders of magnitude); however, sapwood-only fluxes were lower, suggesting that upward/axial methane transport occurs between bark layers. Second, concentrated methane pulse-injections into exposed M. quinquenervia bark, revealed rapid axial methane transport rates (1.42 mm s-1 ), which were further supported through laboratory-simulated experiments (1.41 mm s-1 ). Laboratory-simulated radial CH4 diffusion rates (through bark) were c. 20-times slower. Finally, girdling M. quinquenervia stems caused a near-instantaneous decrease in methane flux immediately above the cut. By contrast, girdling C. glauca displayed persistent, though diminished, methane fluxes. Overall, the experiments revealed evidence for rapid 'between-bark' methane transport independent from the transpiration stream in M. quinquenervia, which facilitates diffusive axial transport from the rhizosphere and/or sapwood sources. This contrasts with the slower, radial 'through-bark' diffusive-dominated gas transportation in C. glauca.
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Affiliation(s)
- Luke C Jeffrey
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Scott G Johnston
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Douglas R Tait
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Johannes Dittmann
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
| | - Damien T Maher
- School of Environment, Science and Engineering, Southern Cross University, PO Box 157, Lismore, NSW, 2480, Australia
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6
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Białkowski J, Rossa R, Ziemiakowicz A, Gohli J, Dymek J, Goczał J. Evolution, types, and distribution of flight control devices on wings and elytra in bark beetles. Sci Rep 2024; 14:6999. [PMID: 38523182 PMCID: PMC10961309 DOI: 10.1038/s41598-024-57658-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 03/20/2024] [Indexed: 03/26/2024] Open
Abstract
Gaining the ability to fly actively was a ground-breaking moment in insect evolution, providing an unprecedented advantage over other arthropods. Nevertheless, active flight was a costly innovation, requiring the development of wings and flight muscles, the provision of sufficient energetic resources, and a complex flight control system. Although wings, flight muscles, and the energetic budget of insects have been intensively studied in the last decades, almost nothing is known regarding the flight-control devices of many crucial insect groups, especially beetles (Coleoptera). Here, we conducted a phylogenetic-informed analysis of flight-related mechanosensors in 28 species of bark beetles (Curculionidae: Scolytinae, Platypodinae), an economically and ecologically important group of insects characterized by striking differences in dispersal abilities. The results indicated that beetle flight apparatus is equipped with different functional types of mechanosensors, including strain- and flow-encoding sensilla. We found a strong effect of allometry on the number of mechanosensors, while no effect of relative wing size (a proxy of flight investment) was identified. Our study constitutes the first step to understanding the drivers and constraints of the evolution of flight-control devices in Coleoptera, including bark beetles. More research, including a quantitative neuroanatomical analysis of beetle wings, should be conducted in the future.
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Affiliation(s)
- Jakub Białkowski
- Department of Forest Ecosystems Protection, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Kraków, Poland
| | - Robert Rossa
- Department of Forest Ecosystems Protection, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Kraków, Poland
| | - Anna Ziemiakowicz
- Department of Forest Ecosystems Protection, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Kraków, Poland
| | - Jostein Gohli
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
| | - Jakub Dymek
- Department of Biology and Cell Imaging, Faculty of Biology, Institute of Zoology and Biomedical Research, Jagiellonian University, Kraków, Poland
| | - Jakub Goczał
- Department of Forest Ecosystems Protection, University of Agriculture in Krakow, 29 Listopada 54, 31-425, Kraków, Poland.
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Emiru AY, Regassa F, Endebu Duguma B, Kassaye A, Desyebelew B. Invitro antibacterial activity of bark, leaf and root extracts of combretum molle plant against streptococcus equi isolated from clinical cases of strangles in donkeys and horses. BMC Vet Res 2024; 20:102. [PMID: 38481214 PMCID: PMC10935832 DOI: 10.1186/s12917-024-03954-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/25/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Effective therapy for many infections is becoming difficult due to the evolutionary development of drug resistance, and hence, the development of alternative treatment options mainly from herbs is crucial. The objective of this study was to investigate the antibacterial effects of ethanol extracts of stem bark, leaves and roots of Combretum molle against Streptococcus equi isolated from clinical cases of strangles using in vitro tests. METHODS Plant extraction was performed using a maceration technique with 80% ethanol. The mean zone of inhibition was determined using the agar well diffusion method. Six serial dilutions with different concentrations (10%, 5%, 2.5%, 1.25%, 0.625% and 0.3125%) of each plant extract were prepared using dimethyl sulfoxide (DMSO). A modified agar microdilution method was used to determine the minimum inhibitory concentration (MICs) of the extracts. RESULTS The results revealed that all plant extracts showed significant antibacterial activity. The root extract showed the best antibacterial effect compared to the others at all concentrations, with MZI values of 27.5, 23.225, 20.5, 17.9, 15.65 and 12.25 for the respective concentrations mentioned above and an MIC of 250 µg/ml. It was followed by the stem bark extract, which had MZI values of 24.67, 22.35, 18.225, 16.175, 11.125 and 8.2 millimeters and an MIC of 375 µg/ml. The leaf extract also had significant activity, with MZI values of 20.175, 18.25, 15.7, 13.125, 9.4 and 6.75 in millimeters and an MIC of 500 µg/ml. There was a direct relationship between the concentrations of the plant extracts and the level of inhibition. CONCLUSION The test plant extracts were compared with the conventional antibiotic penicillin G, and the results indicated that the parts of the test plant have significant antibacterial activity, which may support traditional claims and could be candidates for alternative drug discoveries.
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Affiliation(s)
| | - Fekadu Regassa
- College of Veterinary Medicine and Agriculture, Addis Ababa University, Bishoftu, Ethiopia
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Simomura VL, Miorando D, de Oliveira BMM, Mânica A, Bohnen LC, Buzatto MV, Kunst FM, Ansolin LD, Somensi LB, Vidal Gutiérrez M, Venzon L, de Queiroz E Silva TF, Mota da Silva L, Roman Junior WA. Aqueous extract of the bark of Uncaria tomentosa, an amazonian medicinal plant, promotes gastroprotection and accelerates gastric healing in rats. J Ethnopharmacol 2024; 321:117542. [PMID: 38056537 DOI: 10.1016/j.jep.2023.117542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
ETHNOPHARMACOLOGICAL IMPORTANCE Uncaria tomentosa Willd. DC., is used in the Amazonian region of South America, wherein ethnic groups use the plant to treat diseases, including gastric disorders. However, despite its widespread popular use, this species has yet to be assessed for its anti-ulcer effects. AIM OF THE STUDY In this study, we aimed to evaluate the in vivo gastroprotective and gastric healing activities of an aqueous extract of the bark of Uncaria tomentosa (AEUt) and sought to gain an understanding of the pharmacological mechanisms underlying these biological effects. MATERIALS AND METHODS To verify the gastroprotective properties rats were treated with AEUt (30, 60, or 120 mg/kg) prior to inducing gastric ulceration with ethanol or piroxicam. Additionally, the involvement of nitric oxide, non-protein sulfhydryl compounds (NP-SH), α-2 adrenergic receptors, and prostaglandins was investigated. Furthermore, a pylorus ligature model was employed to investigate the antisecretory activity of AEUt. The gastric healing effects of AEUt (60 mg/kg) were examined in rats in which ulceration had been induced with 80% acetic acid, whereas the quality of healing was evaluated in mice with interleukin-induced recurrent ulcers. We also evaluated the in vivo thickness of the gastric wall using ultrasonography. Moreover, the levels of reduced glutathione (GSH) and malondialdehyde (MDA) were evaluated in ulcerated mucosa, and we determined the activities of the enzymes myeloperoxidase (MPO), N-acetyl-β-D-glycosaminidase, superoxide dismutase, catalase, and glutathione S-transferase. In addition, we assessed the effects of AEUt on cell viability and subjected the AEUt to phytochemical analyses. RESULTS Administration of the AEUt (60 or 120 mg/kg) prevented ethanol- and piroxicam-induced ulceration, which was also confirmed histologically. Moreover, we observed that pre-treatment with NEM and indomethacin abolished the gastroprotective effects of AEUt, thereby indicating the involvement of NP-SH and prostaglandins in these protective effects. In addition, we found that the administration of AEUt had no appreciable effects on the volume, acidity, or peptic activity of gastric juice. Furthermore, the AEUt (60 mg/kg) accelerated the gastric healing of acetic acid-induced ulcers by 46.2% and ultrasonographic findings revealed a reduction in the gastric wall thickness in this group. The gastric healing effect of AEUt was also accompanied by a reduction in MPO activity. The AEUt (60 mg/kg) also minimized ulcer recurrence in mice exposed to IL-1β and was associated with the maintenance of GSH levels and a reduction in MDA contents. We deduce that the biological effects of AEUt could be associated with the activities of polyphenols and the alkaloids isomitraphylline and mitraphylline, identified as predominant constituents of the AEUt. Furthermore, we found no evidence to indicate that AEUt would have any cytotoxic effects. CONCLUSION Collectively, our findings provide compelling evidence indicating the therapeutic efficacy of U. tomentosa. Our data indicate that compounds in AEUt confer gastroprotection and that this preventive effect of AEUt was accompanied by gastric healing and a reduction in gastric ulcer recurrence. Moreover, we provide evidence to indicate that the gastroprotective and gastric healing effects involve the antioxidant system and anti-inflammatory responses that contribute to preserving the gastric mucosa.
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Affiliation(s)
- Viviane Lazari Simomura
- Postgraduate Program in Health Sciences, Community University of Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Daniela Miorando
- Postgraduate Program in Health Sciences, Community University of Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | | | - Aline Mânica
- Postgraduate Program in Health Sciences, Community University of Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Lilian Caroline Bohnen
- Postgraduate Program in Health Sciences, Community University of Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Maike Valentin Buzatto
- Laboratory of Pharmacognosy, Community University of the Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Francine Mantelli Kunst
- Laboratory of Pharmacognosy, Community University of the Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Lucas Damo Ansolin
- Laboratory of Pharmacognosy, Community University of the Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
| | - Lincon Bordignon Somensi
- Postgraduate Program in Development and Society, Alto Vale do Rio do Peixe University, CEP 89500-199, Caçador, SC, Brazil.
| | - Max Vidal Gutiérrez
- Department of Chemistry, Biology and Agricultural Sciences, Universidad de Sonora, Navojoa Sonora, Mexico.
| | - Larissa Venzon
- Postgraduate Program in Pharmaceutical Sciences, University of Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil.
| | | | - Luisa Mota da Silva
- Postgraduate Program in Pharmaceutical Sciences, University of Vale do Itajaí, CEP 88302-202, Itajaí, SC, Brazil; TGI Pharmacology and its interactions Laboratory, Department of Pharmacology, UFSC, SC, Brazil.
| | - Walter Antônio Roman Junior
- Postgraduate Program in Health Sciences, Community University of Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil; Laboratory of Pharmacognosy, Community University of the Chapecó Region, CEP 89809-900, Chapecó, SC, Brazil.
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Lu TT, Yin NN, Yang AJ, Yao YJ, Li ZQ, Liu NY. Comparative transcriptomics reveals the conservation and divergence of reproductive genes across three sympatric Tomicus bark beetles. Comp Biochem Physiol Part D Genomics Proteomics 2024; 49:101168. [PMID: 38061252 DOI: 10.1016/j.cbd.2023.101168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 02/15/2024]
Abstract
Three tree-killing bark beetles belonging to the genus Tomicus, Tomicus yunnanensis, Tomicus brevipilosus and Tomicus minor (Coleoptera; Curculionidae, Scolytinae), are serious wood-borers with larvae feeding on the phloem tissues of Pinus yunnanensis. The three Tomicus beetles, in some cases, coexist in a same habitat, providing a best system for exploring the conservation and divergence of reproductive genes. Here, we applied comparative transcriptomics and molecular biology approaches to characterize reproductive-related genes in three sympatric Tomicus species. Illumina sequencing of female and male reproductive systems and residual bodies generated a large number of clean reads, representing 185,920,232 sequences in T. yunnanensis, 169,153,404 in T. brevipilosus and 178,493,176 in T. minor that were assembled into 32,802, 56,912 and 33,670 unigenes, respectively. The majority of the genes had detectable expression in reproductive tissues (FPKM >1), particularly those genes in T. brevipilosus accounting for 76.61 % of the total genes. From the transcriptomes, totally 838 genes encoding 463 detoxification enzymes, 339 chemosensory membrane proteins and 36 ionotropic glutamate receptors (iGluRs) were identified, including 622 reproductive tissue-expressed genes. Of these, members of carboxylesterases (COEs), ionotropic receptors (IRs), sensory neuron membrane proteins (SNMPs) and iGluRs were highly conserved in gene numbers and sequence identities across three Tomicus species. Further, expression profiling analyses revealed a number of genes expressed in reproductive tissues and the diverse expression characteristics in these beetles. The results provide evidence for the conservation and differences of reproductive genes among three sympatric closely related beetles, helping understand their different reproductive strategies and the maximization of the reproductive success.
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Affiliation(s)
- Ting-Ting Lu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Ning-Na Yin
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - An-Jing Yang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Yu-Juan Yao
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Zhao-Qun Li
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou 310008, China.
| | - Nai-Yong Liu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China.
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10
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Liang X, Wan D, Tan L, Liu H. Dynamic changes of endophytic bacteria in the bark and leaves of medicinal plant Eucommia ulmoides in different seasons. Microbiol Res 2024; 280:127567. [PMID: 38103467 DOI: 10.1016/j.micres.2023.127567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023]
Abstract
The bark and leaves of the Eucommia ulmoides Oliv. (E. ulmoides) have good medicinal value. Studies show endophytes play important roles in host medicinal plant secondary metabolite synthesis, with season being a key influencing factor. Therefore, we used 16 S rRNA to detect endophytic bacteria (EB) in E. ulmoides bark and leaves collected in winter, spring, summer, and autumn, and analyzed the contents of major active components respectively. The results showed that the species diversity and richness of EB of the E. ulmoides bark were higher than those of leaves in all seasons except fall. Among them, the higher species diversity and richness were found in the E. ulmoides bark in winter and spring. EB community structure differed significantly between medicinal tissues and seasons. Concurrently, the bark and leaves of E. ulmoides showed abundant characteristic EB across seasons. For active components, geniposidic acid showed a significant positive correlation with EB diversity and richness, while the opposite was true for aucubin. Additionally, some dominant EB exhibited close correlations with the accumulation of active components. Delftia, enriched in autumn, correlated significantly positively with aucubin. Notably, the impact of the same EB genera on active components differed across medicinal tissues. For example, Sphingomonas, enriched in summer, correlated significantly positively with pinoresinol diglucoside (PDG) in the bark, but with aucubin in the leaves. In summary, EB of E. ulmoides was demonstrated high seasonal dynamics and tissue specificity, with seasonal characteristic EB like Delftia and Sphingomonas correlating with the accumulation of active components in medicinal tissues.
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Affiliation(s)
- Xuejuan Liang
- Institute of Innovative Traditional Chinese Medications, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Dan Wan
- Institute of Innovative Traditional Chinese Medications, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Lei Tan
- Cili Meteorological Bureau, Zhangjiajie 410013, China
| | - Hao Liu
- Institute of Traditional Chinese Medicine Resources, Hunan Academy of Chinese Medicine, Changsha 410013, China.
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11
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Xia J, Sun J, Yang H, Pan J, Guo T, Wang W. [Research on bark-frequency spectral coefficients heart sound classification algorithm based on multiple window time-frequency reassignment]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2024; 41:51-59. [PMID: 38403604 PMCID: PMC10894746 DOI: 10.7507/1001-5515.202212037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 10/07/2023] [Indexed: 02/27/2024]
Abstract
The multi-window time-frequency reassignment helps to improve the time-frequency resolution of bark-frequency spectral coefficient (BFSC) analysis of heart sounds. For this purpose, a new heart sound classification algorithm combining feature extraction based on multi-window time-frequency reassignment BFSC with deep learning was proposed in this paper. Firstly, the randomly intercepted heart sound segments are preprocessed with amplitude normalization, the heart sounds were framed and time-frequency rearrangement based on short-time Fourier transforms were computed using multiple orthogonal windows. A smooth spectrum estimate is calculated by arithmetic averaging each of the obtained independent spectra. Finally, the BFSC of reassignment spectrum is extracted as a feature by the Bark filter bank. In this paper, convolutional network and recurrent neural network are used as classifiers for model comparison and performance evaluation of the extracted features. Eventually, the multi-window time-frequency rearrangement improved BFSC method extracts more discriminative features, with a binary classification accuracy of 0.936, a sensitivity of 0.946, and a specificity of 0.922. These results present that the algorithm proposed in this paper does not need to segment the heart sounds and randomly intercepts the heart sound segments, which greatly simplifies the computational process and is expected to be used for screening of congenital heart disease.
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Affiliation(s)
- Jun Xia
- School of Information Science and Engineering, Yunnan University, Kunming 650504, P. R. China
| | - Jing Sun
- School of Information Science and Engineering, Yunnan University, Kunming 650504, P. R. China
| | - Hongbo Yang
- Kunming Medical University, Kunming 650000, P. R. China
- Fuwai Cardiovascular Hospital of Yunnan Province, Kunming 650102, P. R. China
| | - Jiahua Pan
- Fuwai Cardiovascular Hospital of Yunnan Province, Kunming 650102, P. R. China
| | - Tao Guo
- Kunming Medical University, Kunming 650000, P. R. China
- Fuwai Cardiovascular Hospital of Yunnan Province, Kunming 650102, P. R. China
| | - Weilian Wang
- School of Information Science and Engineering, Yunnan University, Kunming 650504, P. R. China
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12
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Ye F, Kang Z, Kou H, Yang Y, Chen W, Wang S, Sun J, Liu F. G-Protein Coupled Receptor Gpr-1 Is Important for the Growth and Nutritional Metabolism of an Invasive Bark Beetle Symbiont Fungi Leptographium procerum. J Agric Food Chem 2024; 72:3354-3362. [PMID: 38230891 DOI: 10.1021/acs.jafc.3c07547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Leptographium procerum has been demonstrated to play important roles in the invasive success of red turpentine beetle (RTB), one of the most destructive invasive pests in China. Our previous studies found that bacterial volatile ammonia plays an important role in the maintenance of the RTB-L. procerum invasive complex. In this study, we found a GPCR gene Gpr-1 that was a response to ammonia but not involved in the ammonia-induced carbohydrate metabolism. Deletion of Gpr-1 significantly inhibited the growth and pathogenicity but thickened the cell wall of L. procerum, resulting in more resistance to cell wall-perturbing agents. Further analyses suggested that Gpr-1 deletion caused growth defects that might be due to the dysregulation of the amino acid and lipid metabolisms. The thicker cell wall in the ΔGpr-1 mutant was induced through the cell wall remodeling process. Our results indicated that Gpr-1 is essential for the growth of L. procerum by regulating the nutritional metabolism, which can be further explored for potential applications in the management of RTB.
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Affiliation(s)
- Fangyuan Ye
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiwei Kang
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Hongru Kou
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunwen Yang
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Wei Chen
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Saige Wang
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Jianghua Sun
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
| | - Fanghua Liu
- College of Life Science/Hebei Basic Science Center for Biotic Interactions, Institute of Life Science and Green Development, Hebei University, Baoding 071002, China
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13
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Chau TP, Saravanan M, Al-Ansari MM, Al-Dahmash ND, Kuriakose LL, Sindhu R. Antimicrobial and biocompatibility nature of methanol extract of Lannea coromandelica bark and edible coating film preparation for fruit preservation. Environ Res 2024; 243:117861. [PMID: 38070851 DOI: 10.1016/j.envres.2023.117861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 12/22/2023]
Abstract
This research was performed to evaluate the antimicrobial activity of methanol extract of Lannea coromandelica bark against fruit damage causing microbes such as fungi: Alternaria sp., Aspergillus sp., Botrytis sp., Cladosporium sp., Fusarium sp., Penicillium sp., Phytophthora sp., and Trichoderma sp. The bacteria: such as Chromobacter sp., Enterobacter sp., Erwinia sp., Flavobacterium sp., Lactobacillus sp., Pseudomonas sp., and Xanthomonas sp. was investigated. Furthermore, their biocompatibility nature was determined through animal (rat) model study and their fruit preserving potential was determined by edible coating preparation with chitosan and other substances. Interestingly, the extract showed dose dependent (1000 μg mL-1) activity against these microbes in the following order: Enterobacter sp. (26.4 ± 1.5) > Chromobacter sp. (25.4 ± 1.6) > Pseudomonas sp. (24.5 ± 1.3) > Flavobacterium sp. (24.3 ± 1.4) > Xanthomonas sp. (23.6 ± 1.6) > Erwinia sp. (23.6 ± 1.6) > Lactobacillus sp. (19.6 ± 1.3). Similarly, the antifungal activity was found as Penicillium sp. (32.6 ± 1.3) > Cladosporium sp. (32.6 ± 1.5) > Alternaria sp. (30.3 ± 1.2) > Aspergillus sp. (29.9 ± 1.8) > Botrytis sp. (29.8 ± 1.2) > Fusarium sp. (28.6 ± 1.5) > Trichoderma sp. (19.8 ± 1.4) > Phytophthora sp. (16.2 ± 1.1). The acute toxicity and histopathological study results revealed that the extract possesses biocompatible in nature. The illumination transmittance and active functional groups involved in interaction among test methanol extract and chitosan investigated by UV-vis and Fourier-transform infrared spectroscopy (FTIR) analyses and found average light transmittance and few vital functional groups accountable for optimistic interaction to creak edible coating. Approximately four (set I-IV) treatment sets were prepared, and it was discovered that all of the coated Citrus maxima fruit quality characteristics including total soluble solids (TSS), weight loss (%), pH of fruit pulp juice, and decay percentage were significantly (p>0.05) better than uncoated fruit.
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Affiliation(s)
- Tan Phat Chau
- Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Mythili Saravanan
- Department of Pharmaceutical Sciences, North Carolina Central University, USA
| | - Mysoon M Al-Ansari
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Nora Dahmash Al-Dahmash
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Laya Liz Kuriakose
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala, India
| | - Raveendran Sindhu
- Department of Food Technology, TKM Institute of Technology, Kollam, Kerala, India.
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14
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Kimani CN, Reuter H, Kotzé SH, Venter P, Ramharack P, Muller CJF. Pancreatic beta cell regenerative potential of Zanthoxylum chalybeum Engl. Aqueous stem bark extract. J Ethnopharmacol 2024; 320:117374. [PMID: 37944876 DOI: 10.1016/j.jep.2023.117374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/18/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zanthoxylum chalybeum Engl. is endemic to Africa and has been used traditionally to treat diabetes mellitus. Moreover, its pharmacological efficacy has been confirmed experimentally using in vitro and in vivo models of diabetes. However, the effects of Z. chalybeum extracts and its major constituent compounds on beta cell and islet regeneration are not clear. Further, the mechanisms associated with observed antidiabetic effects at the beta cell level are not fully elucidated. AIM OF THE STUDY We determined the beta cell regenerative efficacy of Z. chalybeum aqueous stem bark extract, identified the chemical compounds in Z. chalybeum aqueous stem bark extracts and explored their putative mechanisms of action. MATERIALS AND METHODS Phytochemical profiling of the Z. chalybeum extract was achieved using ultra high-performance liquid chromatography hyphenated to high-resolution mass spectrometry. Thereafter, molecular interactions of the compounds with beta cell regeneration targets were evaluated via molecular docking. In vitro, effects of the extract on cell viability, proliferation, apoptosis and oxidative stress were investigated in RIN-5F beta cells exposed to palmitate or streptozotocin. In vivo, pancreas tissue sections from streptozotocin-induced diabetic male Wistar rats treated with Z. chalybeum extract were stained for insulin, glucagon, pancreatic duodenal homeobox protein 1 (Pdx-1) and Ki-67. RESULTS Based on ligand target and molecular docking interactions diosmin was identified as a dual specificity tyrosine-phosphorylation-regulated kinase 1A (Dyrk1A) inhibitor. In vitro, Z. chalybeum augmented cell viability and cell proliferation while in palmitate-pre-treated cells, the extract significantly increased cell activity after 72 h. In vivo, although morphometric analysis showed decreased islet and beta cell size and density, observation of increased Pdx-1 and Ki-67 immunoreactivity in extract-treated islets suggests that Z. chalybeum extract has mild beta cell regenerative potential mediated by increased cell proliferation. CONCLUSIONS Overall, the mitogenic effects observed in vitro, were not robust enough to elicit sufficient recovery of functional beta cell mass in our in vivo model, in the context of a sustained diabetic milieu. However, the identification of diosmin as a potential Dyrk1A inhibitor merits further inquiry into the attendant molecular interactions.
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Affiliation(s)
- Clare Njoki Kimani
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (SAMRC), Tygerberg, 7505, South Africa; Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa; Department of Non-communicable Diseases, Institute of Primate Research, PO Box 24481, Karen, Nairobi, Kenya.
| | - Helmuth Reuter
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa
| | - Sanet Henriët Kotzé
- Division of Clinical Anatomy, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, PO Box 241, Cape Town, 8000, South Africa; Division of Anatomy, Department of Biomedical Sciences, School of Veterinary Medicine, Ross University, PO Box 334, Basseterre, Saint Kitts and Nevis
| | - Pieter Venter
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (SAMRC), Tygerberg, 7505, South Africa
| | - Pritika Ramharack
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (SAMRC), Tygerberg, 7505, South Africa; Discipline of Pharmaceutical Sciences, School of Health Sciences, University of KwaZulu-Natal, Westville Campus, Durban, 4001, South Africa
| | - Christo John Frederick Muller
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council (SAMRC), Tygerberg, 7505, South Africa; Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, 7600, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, 3886, South Africa
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15
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Jupa R, Pokorná K. Bark wounding triggers gradual embolism spreading in two diffuse-porous tree species. Tree Physiol 2024; 44:tpad132. [PMID: 37930242 PMCID: PMC10849750 DOI: 10.1093/treephys/tpad132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Xylem transport is essential for the growth, development and survival of vascular plants. Bark wounding may increase the risk of xylem transport failure by tension-driven embolism. However, the consequences of bark wounding for xylem transport are poorly understood. Here, we examined the impacts of the bark wounding on embolism formation, leaf water potential and gas exchange in the terminal branches of two diffuse-porous tree species (Acer platanoides L. and Prunus avium L.). The effects of bark removal were examined on field-grown mature trees exposed to increased evaporative demands on a short-term and longer-term basis (6 h vs 6 days after bark wounding). Bark removal of 30% of branch circumference had a limited effect on the xylem hydraulic conductivity when embolized vessels were typically restricted to the last annual ring near the bark wound. Over the 6-day exposure, the non-conductive xylem area had significantly increased in the xylem tissue underneath the bark wound (from 22-29% to 51-52% of the last annual ring area in the bark wound zone), pointing to gradual yet relatively limited embolism spreading to deeper xylem layers over time. In both species, the bark removal tended to result in a small but non-significant increase in the percent loss of hydraulic conductivity compared with control intact branches 6 days after bark wounding (from 6 to 8-10% in both species). The bark wounding had no significant effects on midday leaf water potential, CO2 assimilation rates, stomatal conductance and water-use efficiency of the leaves of the current-year shoot, possibly due to limited impacts on xylem transport. The results of this study demonstrate that bark wounding induces limited but gradual embolism spreading. However, the impacts of bark wounding may not significantly limit water delivery to distal organs and leaf gas exchange at the scale of several days.
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Affiliation(s)
- Radek Jupa
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno CZ-62500, Czech Republic
| | - Kamila Pokorná
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 5, Brno CZ-62500, Czech Republic
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16
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Arthur G, Jonathan L, Juliette C, Nicolas L, Christian P, Hugues C. Spatial and remote sensing monitoring shows the end of the bark beetle outbreak on Belgian and north-eastern France Norway spruce (Picea abies) stands. Environ Monit Assess 2024; 196:226. [PMID: 38302669 DOI: 10.1007/s10661-024-12372-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 01/15/2024] [Indexed: 02/03/2024]
Abstract
In 2022, Europe emerged from eight of the hottest years on record, leading to significant spruce mortality across Europe. The particularly dry weather conditions of 2018 triggered an outbreak of bark beetles (Ips typographus), causing the loss of thousands of hectares of Norway spruce stands, including in Wallonia and North-eastern France. A methodology for detecting the health status of spruce was developed based on a dense time series of satellite imagery (Sentinel-2). The time series of satellite images allowed the modelling of the spectral response of healthy spruce forests over the seasons: a decrease in photosynthetic activity of the forest canopy causes deviations from this normal seasonal vegetation index trajectory. These anomalies are caused by a bark beetle attack and are detected automatically. The method leads in the production of an annual spruce health map of Wallonia and Grand-Est. The goal of this paper is to assess the damage caused by bark beetle using the resulting spruce health maps. A second objective was to compare the influence of basic variables on the mortality of spruce trees in these two regions. Lasted 6 years (2017-2022), bark beetle has destroyed 12.2% (23,674 ha) of the spruce area in Wallonia and Grand-Est of France. This study area is composed of three bioclimatic areas: Plains, Ardennes and Vosges, which have not been equally affected by bark beetle attacks. The plains were the most affected, with 50% of spruce forests destroyed, followed by the Ardennes, which lost 11.3% of its spruce stands. The Vosges was the least affected bioclimatic area, with 5.6% of spruce stands lost. For the most problematic sites, Norway spruce forestry should no longer be considered.
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Affiliation(s)
- Gilles Arthur
- Gembloux Agro-Bio Tech (Uliege), Terra-Forest is life, 5030, Gembloux, Belgium.
| | - Lisein Jonathan
- Gembloux Agro-Bio Tech (Uliege), Terra-Forest is life, 5030, Gembloux, Belgium
| | - Cansell Juliette
- Centre National de la propriété forestière, 54 000, Nancy, France
| | - Latte Nicolas
- Gembloux Agro-Bio Tech (Uliege), Terra-Forest is life, 5030, Gembloux, Belgium
| | | | - Claessens Hugues
- Gembloux Agro-Bio Tech (Uliege), Terra-Forest is life, 5030, Gembloux, Belgium
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17
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Rahman R, Siddique T, Nipa FA, Sultana S, Devi P, Islam F, Nainu F, Obaidullah AJ, Emran TB, Khatun MR. Bark extract of Chaetocarpus castanocarpus (Roxb.) exhibits potent sedative, anxiolytic, and antidepressant effects through an in vivo approach in Swiss albino mice. Eur Rev Med Pharmacol Sci 2024; 28:1202-1212. [PMID: 38375725 DOI: 10.26355/eurrev_202402_35359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
OBJECTIVE Standard phytochemical investigations were performed to identify the secondary metabolites in the methanol extract of Chaetocarpus castanocarpus bark (MECC) and investigate the neuropharmacological potential of MECC in Swiss albino mice. MATERIALS AND METHODS Swiss albino mice were used in the forced swimming test (FST) and tail suspension test (TST) to evaluate the antidepressant effect of MECC. Also, the hole board test (HBT) and elevated plus maze (EPM) were conducted to examine anxiolytic activities. In contrast, the open field test (OFT) and hole cross test (HCT) were employed to evaluate sleeping disorders. RESULTS Alkaloids, glycosides, flavonoids, terpenoids, coumarins, and tannins are only a few secondary metabolites identified in MECC by qualitative and quantitative phytochemical investigations. The oral administration of MECC considerably shortened the immobility duration during FST and TST. Encouraging dose-dependent anxiolytic effects were also observed in all relevant experiments compared to the control. Additionally, during the OFT and HCT assessment, a noteworthy decline in the locomotor activities of the experimental animals was observed. CONCLUSIONS The results of this investigation suggest that the Chaetocarpus castanocarpus bark is a possible source of therapeutic candidates for treating neurological disorders.
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Affiliation(s)
- R Rahman
- Department of Pharmacy, International Islamic University Chittagong, Chittagong, Bangladesh.
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18
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Mokhtar N, Karunakaran T, Santhanam R, Abu Bakar MH, Jong VYM. Phenolics and triterpenoids from stem bark of Calophyllum lanigerum var. austrocoriaceum (Whitmore) P. F. Stevens and their cytotoxic activities. Nat Prod Res 2024; 38:873-878. [PMID: 37005001 DOI: 10.1080/14786419.2023.2196075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/21/2023] [Indexed: 04/04/2023]
Abstract
Genus Calophyllum is well-known for its phenolic constituents, especially coumarins, which have shown to have a wide range of significant biological activities. In this study, four known phenolic constituents and two triterpenoids have been isolated from the stem bark of Calophyllum lanigerum. The compounds were two pyranochromanone acids are known as caloteysmannic acid (1), isocalolongic acid (2), a simple dihydroxyxanthone, namely euxanthone (3), one coumarin named calanone (4), and two common triterpenoids, friedelin (5), and stigmasterol (6). Chromanone acids were reported for the first time in this Calophyllum species. Cytotoxic evaluations were carried out on n-hexane extract (87.14 ± 2.04 µg/mL; 81.46 ± 2.42 µg/mL) followed by the chromanone acids (1 [79.96 ± 2.39 µM; 83.41 ± 3.39 µM] & 2 [57.88 ± 2.34; 53.04 ± 3.18 µM]) against two cancerous cell lines, MDA-MB-231 and MG-63 cell lines, respectively. The results showed that all tested samples exhibited moderate cytotoxicity.
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Affiliation(s)
- Norisha Mokhtar
- Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Thiruventhan Karunakaran
- Centre for Drug Research, Universiti Sains Malaysia, Pulau Pinang, Malaysia
- School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Rameshkumar Santhanam
- Faculty of Science and Marine Enviroment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Mohamad Hafizi Abu Bakar
- Bioprocess Technology Division, School of Industrial Technology, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Vivien Yi Mian Jong
- Centre for Applied Science Studies, Universiti Teknologi Mara, Kota Samarahan, Sarawak, Malaysia
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19
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Jacob JAE, Antony R, Ivan Jebakumar DS. Synergistic effect of silver nanoparticle-embedded calcite-rich biochar derived from Tamarindus indica bark on 4-nitrophenol reduction. Chemosphere 2024; 349:140765. [PMID: 38006917 DOI: 10.1016/j.chemosphere.2023.140765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/27/2023] [Accepted: 11/17/2023] [Indexed: 11/27/2023]
Abstract
Calcite-biochar composites are attractive materials with outstanding adsorption capabilities for removing various recalcitrant contaminants in wastewater treatment, however, the complexity of their synthesis limits their practical applications. In this work, we have prepared calcite-rich biochar (Ca-BC) from a single precursor (Tamarindus indica bark), which simplifies the synthetic route for preparing calcite-biochar composite. The as-synthesized composite is utilized to make a heterogeneous catalytic system containing the supported silver nanoparticles (Ag@Ca-BC) formed by the reduction of Ag+ ions on the surface of the composite. The formation of Ag@Ca-BC is confirmed by various characterization techniques such as PXRD, FT-IR, UV-Vis, cyclic voltammetry, impedance measurement, SEM, and TEM analyses. Especially, the TEM analysis confirms the presence of Ag nanoparticles with size ranging between 20 and 50 nm on the surface of Ca-BC composite. The nano-catalyst Ag@Ca-BC efficiently promotes the conversion of 4-nitrophenol to 4-aminophenol using NaBH4 as the reductant in water within 24 minutes at room temperature, suggesting that Ag@Ca-BC can be an efficient catalyst to remove nitroaromatics from the industrial effluents. The straightforward synthesis of Ca-BC from a single precursor along with its utility as a catalytic support presents a compelling proposition for application in the field of materials synthesis, catalysis, and green chemistry.
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Affiliation(s)
- J Amala Ebi Jacob
- Postgraduate Department of Chemistry, St. John's College, Palayamkottai, 627002, Tamil Nadu, India
| | - R Antony
- Department of Chemistry, Mepco Schlenk Engineering College (Autonomous), Sivakasi, 626005, Tamil Nadu, India.
| | - D S Ivan Jebakumar
- Postgraduate Department of Chemistry, St. John's College, Palayamkottai, 627002, Tamil Nadu, India.
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20
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Jeong C, Lee CH, Lee Y, Seo J, Wang W, Park KH, Oh E, Cho Y, Park C, Son YJ, Yoon Park JH, Kang H, Lee KW. Ulmus macrocarpa Hance trunk bark extracts inhibit RANKL-induced osteoclast differentiation and prevent ovariectomy-induced osteoporosis in mice. J Ethnopharmacol 2024; 319:117285. [PMID: 37839769 DOI: 10.1016/j.jep.2023.117285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/25/2023] [Accepted: 10/04/2023] [Indexed: 10/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ulmus macrocarpa Hance (UmH) bark has been traditionally utilized for medicinal purposes. The bark extract of this plant has diverse health benefits, and its potential role in enhancing bone health is of distinct interest, particularly when considering the substantial health and economic implications of bone-related pathologies, such as osteoporosis. Despite the compelling theoretical implications of UmH bark in fortifying bone health, no definitive evidence at the in vivo level is currently available, thus highlighting the innovative and as-yet-unexplored potential of this field of study. AIM OF THE STUDY Primarily, our study aims to conduct a meticulous analysis of the disparity in the concentration of active compounds in the UmH root bark (Umrb) and trunk bark (Umtb) extracts and confirm UmH bark's efficacy in enhancing bone health in vivo, illuminating the cellular mechanisms involved. MATERIALS AND METHODS The Umrb and Umtb extracts were subjected to component analysis using high-performance liquid chromatography and then assessed for their inhibitory effects on osteoclast differentiation through the TRAP assay. An ovariectomized (OVX) mouse model replicates postmenopausal conditions commonly associated with osteoporosis. Micro-CT was used to analyze bone structure parameters, and enzyme-linked immunosorbent assay and staining were used to assess bone formation markers and osteoclast activity. Furthermore, this study investigated the impact of the extract on the expression of pivotal proteins and genes involved in bone formation and resorption using mouse bone marrow-derived macrophages (BMMs). RESULTS The findings of our study reveal a significant discrepancy in the concentration of active constituents between Umrb and Umtb, establishing Umtb as a superior source for promoting bone health. I addition, a standardized pilot-scale procedure was conducted for credibility. The bone health benefits of Umtb were verified using an OVX model. This validation involved the assessment of various parameters, including BMD, BV/TV, and BS/TV, using micro-CT imaging. Additionally, the activation of osteoblasts was evaluated by Umtb by measuring specific factors such as ALP, OCN, OPG in blood samples and through IHC staining. In the same investigations, diminished levels of osteoclast differentiation factors, such as TRAP, NFATc1, were also observed. The observed patterns exhibited consistency in vitro BMM investigations. CONCLUSIONS Through verification at both in vitro levels using BMMs and in vivo levels using the OVX-induced mouse model, our research demonstrates that Umtb is a more effective means of improving bone health in comparison to Umrb. These findings pave the way for developing health-functional foods or botanical drugs targeting osteoporosis and other bone-related disorders and enhance the prospects for future research extensions, including clinical studies, in extract applications.
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Affiliation(s)
- Chanhyeok Jeong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Chang Hyung Lee
- Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Yongjin Lee
- Department of Pharmacy, Sunchon National University, Suncheon, 57922, Republic of Korea.
| | - Jiwon Seo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Weihong Wang
- Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea; Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 08826, Republic of Korea.
| | - Kyu-Hyung Park
- Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Eunseok Oh
- Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea; Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 08826, Republic of Korea.
| | - Youbin Cho
- Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Chanyoon Park
- Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea; Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Young-Jin Son
- Department of Pharmacy, Sunchon National University, Suncheon, 57922, Republic of Korea.
| | - Jung Han Yoon Park
- Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Heonjoong Kang
- Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea; Laboratory of Marine Drugs, School of Earth and Environmental Sciences, NS-80, Seoul National University, Seoul, 08826, Republic of Korea; Research Institute of Oceanography, Seoul National University, NS-80, Seoul, 08826, Republic of Korea; Interdisciplinary Graduate Program in Genetic Engineering, Seoul National University, NS-80, Seoul, 08826, Republic of Korea.
| | - Ki Won Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea; Bio-MAX Institute, Seoul National University, Seoul, 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea; Institutes of Green Bio Science & Technology, Seoul National University, Pyeongchang, 25354, Republic of Korea; Department of Agricultural Biotechnology and Center for Food and Bio Convergence, Seoul National. University, Seoul, 08826, Republic of Korea.
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21
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Barbosa CR, Pantoja JC, Fernandes T, Chagas RA, Souza CG, Santos ARD, Alves JP, Vargas Junior FM. Ruminal modulator additive effect of Stryphnodendron rotundifolium bark in feedlot lambs. Trop Anim Health Prod 2024; 56:53. [PMID: 38261014 DOI: 10.1007/s11250-024-03903-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
The study aimed to evaluate the inclusion effects of Stryphnodendron rotundifolium (barbatimão) extracts in substitution of the lasalocid sodium on the ingestive behaviour, intake, ruminal parameters, and digestibility of feedlot lambs. Twenty-four pantaneiro lambs were used, with an average age of 150 ± 4.59 days and an initial body weight of 21.2 ± 3.63 kg. The lambs were distributed in three treatments in an experimental design with randomized blocks. The treatments correspond to the additive supplements: LAS (0.019 g of lasalocid sodium/lamb/d); DGB (1.50 g of barbatimão dried ground bark/lamb/d); DHE (0.30 g of barbatimão dry hydroalcoholic extract/lamb/d). The DHE increased 59.74 min in the time spent for ingestion per day, resulting in an efficiency reduction of dry matter (DM) ingestion (127 g of DM/h of feed). There was a reduction of 1.8 mg/dL in the ammoniacal nitrogen concentration with extract supplementation compared to LAS. The DGB reduced total volatile fatty acids by 48.9% compared to the control treatment. The inclusion of barbatimão extracts (DGB and DHE) reduced 12.05% of ruminal butyrate content. The supplementation of barbatimão extracts replacing lasalocid sodium in the diet of feedlot lambs did not affect intake and caused small changes on ingestive behaviour.
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Affiliation(s)
- Cristiane R Barbosa
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Jéssica C Pantoja
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Tatiane Fernandes
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, 24061, USA
| | - Renata A Chagas
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Carla G Souza
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Aylpy R D Santos
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Joyce P Alves
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil
| | - Fernando M Vargas Junior
- Agrarian Sciences Department, Federal University of Grande Dourados, Dourados, 79804-970, Brazil.
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22
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Tahoun M, Gee CT, McCoy VE, Stoneman M, Raicu V, Engeser M, Müller CE. Suberin, the hallmark constituent of bark, identified in a 45-million-year-old monkeyhair tree (Coumoxylon hartigii) from Geiseltal, Germany. Sci Rep 2024; 14:118. [PMID: 38167954 PMCID: PMC10761729 DOI: 10.1038/s41598-023-50402-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
Suberin, a complex biopolymer, forms a water- and gas-insoluble barrier that protects the inner tissues of plants. It is abundant in tree bark, particularly in the cork oak Quercus suber. Anatomically, fossil bark has been described since the Devonian. However, its distinctive constituent suberin has not yet been reported from the fossil record. Here we present unambiguous chemical evidence for intact suberin from the bark of a middle Eocene monkeyhair tree from Geiseltal, eastern Germany. High-performance liquid chromatography coupled to electrospray ionization mass spectrometry (HPLC-ESI-MS) detected constituents of suberin in the outer layer the fossil monkeyhair tree, which confirms previous morphological interpretation of this tissue as bark, and chemically differentiates this layer from the two tissues of the inner layer. Notably, this is the first study with compelling chemical evidence for suberin in fossil bark. Fluorescence microspectroscopy additionally supports the presence of suberin. Fossilization conditions in the Eocene Geiseltal deposit were likely mild, with low moisture and temperatures, contributing to the remarkable preservation of bark and inner laticifer mats of the monkeyhair trees growing there 45 million years ago.
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Affiliation(s)
- Mariam Tahoun
- Department of Pharmaceutical and Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany
| | - Carole T Gee
- Division of Paleontology, Institute of Geosciences, University of Bonn, Nussallee 8, 53115, Bonn, Germany.
| | - Victoria E McCoy
- Department of Geosciences, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211, USA
| | - Michael Stoneman
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211, USA
| | - Valerica Raicu
- Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211, USA
- Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI, 53211, USA
| | - Marianne Engeser
- Kekulé Institute for Organic Chemistry and Biochemistry, University of Bonn, 53121, Bonn, Germany
| | - Christa E Müller
- Department of Pharmaceutical and Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, An der Immenburg 4, 53121, Bonn, Germany.
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23
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Ai J, Yu JF, Wang J, Wang XX, Wang ZZ. [Optimization of processing technology of bark of Ilicis Rotundae Cortex based on quality by design concept]. Zhongguo Zhong Yao Za Zhi 2024; 49:403-411. [PMID: 38403316 DOI: 10.19540/j.cnki.cjcmm.20231116.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Based on the concept of quality by design(QbD), this study optimized the processing technology of Ilicis Rotundae Cortex. According to the processing method and ingredient requirements of Ilicis Rotundae Cortex in the Chinese Pharmacopoeia, the content of syringin and pedunculoside, alcohol extract, fragmentation rate, and moisture content were taken as the critical quality attributes(CQAs). The soaking time, moistening time, and drying time were taken as critical process parameters(CPPs) by single factor tests. The weight coefficients of CQAs were determined by the analytic hierarchy process(AHP)-entropy weighting method, and the comprehensive score was calculated. With the comprehensive score as the response value, Box-Behnken design was employed to establish a mathematical model between CPPs and CQAs, and the design space for the processing of Ilicis Rotundae Cortex was built and verified. The results of ANOVA showed that the mathematical model had the P value below 0.05, the lack of fit greater than 0.05, adjusted R~2=0.910 5, and predicted R~2=0.831 0, which indicated that the proposed model had statistical significance and good prediction performance. Considering the factors in production, the best processing conditions of Ilicis Rotundae Cortex were decoction pieces of about 1 cm soaking for 1 h, moistening for 4 h, and drying at 60-70 ℃ in a blast drier for 2 h. The optimized processing technology of Ilicis Rotundae Cortex was stable and feasible, which can provide a reference for the standardized preparation and stable quality of Ilicis Rotundae Cortex.
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Affiliation(s)
- Jing Ai
- Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Jin-Feng Yu
- Nanjing University of Chinese Medicine Nanjing 210023,China
| | - Jia Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd. Lianyungang 222001,China National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture Lianyungang 222001,China Key Laboratory for the New Technique Research of TCM Extraction and Purification Lianyungang 222001,China
| | - Xing-Xing Wang
- Jiangsu Kanion Pharmaceutical Co., Ltd. Lianyungang 222001,China National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture Lianyungang 222001,China Key Laboratory for the New Technique Research of TCM Extraction and Purification Lianyungang 222001,China
| | - Zhen-Zhong Wang
- Nanjing University of Chinese Medicine Nanjing 210023,China Jiangsu Kanion Pharmaceutical Co., Ltd. Lianyungang 222001,China National Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture Lianyungang 222001,China Key Laboratory for the New Technique Research of TCM Extraction and Purification Lianyungang 222001,China
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24
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Haseef HMA, Dinesh S, Prakash J, Marvaan MS, Madasamy S, Pannerselvam B, Venkatasubbu GD. Calcium oxide/silica nanocomposite and L. coromandelica bark incorporated κ-carrageenan/sodium alginate hydrogel for rapid hemostasis. Int J Biol Macromol 2024; 254:127951. [PMID: 37951445 DOI: 10.1016/j.ijbiomac.2023.127951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/14/2023]
Abstract
Hemorrhage stands out as a leading factor contributing to fatalities in trauma cases. Hemorrhage is associated with the process of hemostasis. Hemostasis is the primary stage of wound healing. Hydrogels can aid in hemostasis and minimize the duration of wound healing. Calcium is one of the clotting factors and is a key component for the activation of the coagulation cascade. In this work, we have developed a polymeric hydrogel matrix made up of κ-carrageenan and sodium alginate containing a calcium silica nanocomposite and a natural drug, namely the bark of L. coromandelica. The nanocomposite was characterized using various modalities such as XRD, FTIR, FESEM and HRTEM. The rheological and morphological properties of the pure and composite hydrogels were examined. The antimicrobial activity, hemocompatibility and hemostatic efficacy of the materials were studied using various in vitro assays including bacterial growth curve analysis, colony counting, anti-biofilm assay, hemolysis assay and in vivo clotting studies. The drug incorporated nanocomposite hydrogel exhibited superior activity in animal models.
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Affiliation(s)
- H Mohamed Amsath Haseef
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - S Dinesh
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - J Prakash
- Translational Health Science and Technology Institute, Faridabad 121001, Haryana, India
| | - M S Marvaan
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Sundar Madasamy
- Centre for Research and Postgraduate Studies in Botany, Ayya Nadar Janaki Ammal College, Sivakasi, Tamil Nadu, India
| | | | - G Devanand Venkatasubbu
- Department of Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
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25
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Qiu Y, Wang Y, Wu Y, Yang H, Yang M, Zhou C, Cao M. Effects of RNA silencing during antagonism between citrus exocortis viroid and citrus bark cracking viroid in Etrog citron (Citrus medica). Mol Plant Pathol 2024; 25:e13408. [PMID: 38041680 PMCID: PMC10788473 DOI: 10.1111/mpp.13408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 12/03/2023]
Abstract
Citrus exocortis viroid (CEVd) and citrus bark cracking viroid (CBCVd) are two important viroids that infect citrus plants and frequently occur as mixed infections in orchards. However, the mechanism of antagonism between the two viroids in mixed infections remains unclear. The CEVd/CBCVd-citron system and small RNA sequencing (sRNA-seq) were used to study the antagonism. When CBCVd was inoculated before CEVd, the CEVd titre was significantly reduced and the symptoms were attenuated. Viroid-derived sRNAs (vd-sRNAs) from CEVd and CBCVd were predominantly 21-nucleotide (nt) and 22-nt in length and had similar 5' base biases. Homologous sequences of the two viroids in the terminal right (TR) region are rich in vd-sRNAs, and the high frequency vd-sRNAs selected from the CBCVd TR region can be used to degrade the transcripts of CEVd in vivo directly. These results suggest that RNA silencing may play an important role in the antagonism of the two viroids, thus deepening our understanding of the molecular interaction of long noncoding RNAs in woody plants.
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Affiliation(s)
- Yuanjian Qiu
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Yafei Wang
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- College of Plant ProtectionHenan Agricultural UniversityZhengzhouChina
| | - Yujiao Wu
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Han Yang
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Mengxue Yang
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Changyong Zhou
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
| | - Mengji Cao
- National Citrus Engineering Research Center, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science CityCitrus Research Institute, Southwest UniversityChongqingChina
- Academy of Agricultural SciencesSouthwest UniversityChongqingChina
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26
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Pu H, Cao D, Zhou X, Li F, Wang L, Wang M. Isoprenylated Flavonoids and 2-Arylbenzofurans from the Root Bark of Morus alba L. and Their Cytotoxic Activity against HGC27 Cancer Cells. Molecules 2023; 29:30. [PMID: 38202613 PMCID: PMC10779849 DOI: 10.3390/molecules29010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/13/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
Three new compounds (1, 11, and 12), together with 32 known ones, were isolated from the root bark of Morus alba L. using various chromatographic methods. The structures of the undescribed compounds were elucidated based on 1D, 2D NMR, and HRESIMS dataanalysis, while the known ones were identified by comparison of their spectroscopic data with those reported in the literature. All the isolates were evaluated for their cytotoxic activities against human gastric cancer HGC27 cells by CCK-8 assay. Among them, compounds 5, 8, 10, and 30 exhibited cytotoxic activities on HGC27 cells with IC50 values of 33.76 ± 2.64 μM, 28.94 ± 0.72 μM, 6.08 ± 0.34 μM, and 10.24 ± 0.89 μM, respectively. Furthermore, compound 10 was confirmed to reduce proliferation ability, increase apoptosis rate, and inhibit cell migration pathway by annexin V/PI double staining experiment, transwell experiment, and Western blot analysis.
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Affiliation(s)
- Hangyi Pu
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (H.P.); (X.Z.); (F.L.); (L.W.)
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongyi Cao
- Pharmaceutical Department, The Third Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming 650500, China;
| | - Xue Zhou
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (H.P.); (X.Z.); (F.L.); (L.W.)
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fu Li
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (H.P.); (X.Z.); (F.L.); (L.W.)
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lun Wang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (H.P.); (X.Z.); (F.L.); (L.W.)
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingkui Wang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (H.P.); (X.Z.); (F.L.); (L.W.)
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Beijing 100049, China
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Hudson JE, Levia DF, Yoshimura KM, Gottel NR, Hudson SA, Biddle JF. Mapping bark bacteria: initial insights of stemflow-induced changes in bark surface phyla. Microbiol Spectr 2023; 11:e0356223. [PMID: 37971233 PMCID: PMC10715197 DOI: 10.1128/spectrum.03562-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 11/19/2023] Open
Abstract
IMPORTANCE Compared with the phyllosphere, bacteria inhabiting bark surfaces are inadequately understood. Based on a preliminary pilot study, our work suggests that microbial populations vary across tree bark surfaces and may differ in relation to surrounding land use. Initial results suggest that stemflow, the water that flows along the bark surface, actively moves bacterial communities across a tree. These preliminary findings underscore the need for further study of niche microbial populations to determine whether there are connections between the biodiversity of microbiomes inhabiting corticular surfaces, land use, and hydrology.
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Affiliation(s)
- J. E. Hudson
- Department of Geography and Spatial Sciences, University of Delaware, Newark, Delaware, USA
| | - D. F. Levia
- Department of Geography and Spatial Sciences, University of Delaware, Newark, Delaware, USA
- Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware, USA
| | - K. M. Yoshimura
- School of Marine Science and Policy, University of Delaware, Newark, Delaware, USA
| | - N. R. Gottel
- Argonne National Lab, University of Chicago Medicine, Chicago, Illinois, USA
| | - S. A. Hudson
- Department of Geography and Spatial Sciences, University of Delaware, Newark, Delaware, USA
| | - J. F. Biddle
- School of Marine Science and Policy, University of Delaware, Newark, Delaware, USA
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28
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Park JH, Huh MJ, Lee JW, Lee MW, Lee DH, Nam I, Park IK. Seasonal occurrence of bark and woodboring Coleoptera in stands of Pinus densiflora (Pinales: Pinaceae) and Larix kaempferi (Pinales: Pinaceae) and monitoring method using multifunnel traps baited with pine volatiles. J Econ Entomol 2023; 116:2014-2026. [PMID: 37774406 DOI: 10.1093/jee/toad175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/13/2023] [Accepted: 08/24/2023] [Indexed: 10/01/2023]
Abstract
This study investigated the seasonal occurrence of bark and woodboring Coleoptera in Pinus densiflora (Pinales: Pinaceae), and Larix kaempferi (Pinales: Pinaceae) stands using multifunnel traps baited with pine volatiles in Korea. The number and species of bark and woodboring beetles caught in traps baited with ethanol, α-pinene, and ethanol+α-pinene were compared to determine the effective attractants. In addition, the effects of other pine volatiles, such as (-)-β-pinene, β-caryophyllene, (±)-limonene, β-myrcene, and 3-carene, were investigated. A total of 13,134 woodboring beetles from 150 species were collected from pine and larch stands from 2019 to 2020. Tomicus minor (Hartig) (Coleoptera: Curculionidae) adults were more attracted to traps baited with α-pinene, whereas Xyleborinus saxesenii (Ratzeburg) (Coleoptera: Curculionidae), Cyclorhipidion pelliculosum (Eichhoff) (Coleoptera: Curculionidae), and Phloeosinus pulchellus (Blandford) (Coleoptera: Curculionidae) adults were more attracted to traps baited with ethanol. Hylurgops interstitialis (Chapuis) (Coleoptera: Curculionidae), Shirahoshizo genus group, Rhagium inquisitor (Linne) (Coleoptera: Cerambycidae), and Rhadinomerus maebarai (Voss & Chûjô) (Coleoptera: Curculionidae) were more frequently attracted to traps baited with ethanol+α-pinene than to traps baited with other attractants. The addition of 3-carene to ethanol+α-pinene enhanced the capture of H. interstitialis, R. inquisitor, and Hylobius (Callirus) haroldi (Faust) (Coleoptera: Curculionidae).
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Affiliation(s)
- Ji-Hong Park
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Jung Huh
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae-Woo Lee
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Woo Lee
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Ho Lee
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Il Nam
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Il-Kwon Park
- Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Ristinmaa AS, Tafur Rangel A, Idström A, Valenzuela S, Kerkhoven EJ, Pope PB, Hasani M, Larsbrink J. Resin acids play key roles in shaping microbial communities during degradation of spruce bark. Nat Commun 2023; 14:8171. [PMID: 38071207 PMCID: PMC10710418 DOI: 10.1038/s41467-023-43867-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
The bark is the outermost defense of trees against microbial attack, largely thanks to toxicity and prevalence of extractive compounds. Nevertheless, bark decomposes in nature, though by which species and mechanisms remains unknown. Here, we have followed the development of microbial enrichments growing on spruce bark over six months, by monitoring both chemical changes in the material and performing community and metagenomic analyses. Carbohydrate metabolism was unexpectedly limited, and instead a key activity was metabolism of extractives. Resin acid degradation was principally linked to community diversification with specific bacteria revealed to dominate the process. Metagenome-guided isolation facilitated the recovery of the dominant enrichment strain in pure culture, which represents a new species (Pseudomonas abieticivorans sp. nov.), that can grow on resin acids as a sole carbon source. Our results illuminate key stages in degradation of an abundant renewable resource, and how defensive extractive compounds have major roles in shaping microbiomes.
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Affiliation(s)
| | - Albert Tafur Rangel
- Department of Life Sciences, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kgs, Lyngby, Denmark
| | - Alexander Idström
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Sebastian Valenzuela
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, SE-405 30, Gothenburg, Sweden
| | - Eduard J Kerkhoven
- Department of Life Sciences, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kgs, Lyngby, Denmark
| | - Phillip B Pope
- Faculty of Biosciences, Norwegian University of Life Sciences, NO-1433, Ås, Norway
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, NO-1433, Ås, Norway
| | - Merima Hasani
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- Wallenberg Wood Science Center, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
| | - Johan Larsbrink
- Department of Life Sciences, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
- Wallenberg Wood Science Center, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
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Frühbrodt T, Du B, Delb H, Burzlaff T, Kreuzwieser J, Biedermann PHW. Know When You Are Too Many: Density-Dependent Release of Pheromones During Host Colonisation by the European Spruce Bark Beetle, Ips typographus (L.). J Chem Ecol 2023; 49:652-665. [PMID: 37789096 PMCID: PMC10781875 DOI: 10.1007/s10886-023-01453-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/30/2023] [Accepted: 09/13/2023] [Indexed: 10/05/2023]
Abstract
Individuals across various animal species communicate their presence to conspecifics. Especially phytophagous and parasitoid insects with their brood developing on limited resources rely on chemical cues, such as host-marking pheromones, to reduce intraspecific competition. Bark beetles are phytophagous insects with some species being economically and ecologically relevant forest pests. Several of them use the volatile compound verbenone to inhibit attraction and reduce intraspecific competition. However, in the Eurasian spruce bark beetle, Ips typographus (L.), temporal emission patterns did so far not quite support the putative function of verbenone as an indicator of densely colonised host trees. More importantly, it is currently unclear how well verbenone emission is actually related to colonisation density and thus intraspecific competition. Here, we inoculated Norway spruce logs with I. typographus at two defined colonisation densities in the greenhouse and measured the emission of verbenone and its precursors α-pinene and verbenol over time. Verbenone emission was 3-7 times greater from colonised logs compared to decaying logs without beetles during the major part of larval development. Furthermore, our data supports the quantitative hypothesis, that the termination of attack on a tree is mediated by a cessation of the release of verbenol and continuous emission of verbenone. The latter is most likely a passively produced host-marking cue reflecting the actual density of conspecifics since per-beetle emission was unaffected by colonisation density. These findings shed new light on the regulation of bark beetle mass aggregations, which are currently causing previously unseen economic damages in temperate forests.
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Affiliation(s)
- Tobias Frühbrodt
- Department of Forest Protection, Forest Research Institute Baden-Württemberg, Wonnhaldestrasse 4, 79100, Freiburg, Germany
| | - Baoguo Du
- Chair of Ecosystem Physiology, University of Freiburg, Georges-Köhler-Allee 53, 79110, Freiburg, Germany.
| | - Horst Delb
- Department of Forest Protection, Forest Research Institute Baden-Württemberg, Wonnhaldestrasse 4, 79100, Freiburg, Germany
| | - Tim Burzlaff
- Chair of Forest Entomology and Protection, University of Freiburg, Fohrenbühl 27, 79252, Stegen-Wittental, Germany
| | - Jürgen Kreuzwieser
- Chair of Ecosystem Physiology, University of Freiburg, Georges-Köhler-Allee 53, 79110, Freiburg, Germany
| | - Peter H W Biedermann
- Chair of Forest Entomology and Protection, University of Freiburg, Fohrenbühl 27, 79252, Stegen-Wittental, Germany
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31
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Shewale MK, Nebesářová J, Grosse-Wilde E, Kalinová B. Microscopic morphology and distribution of the antennal sensilla in the double-spined bark beetle, Ips duplicatus (Coleoptera: Curculionidae). Microsc Res Tech 2023; 86:1610-1625. [PMID: 37572001 DOI: 10.1002/jemt.24397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/14/2023]
Abstract
The double-spined spruce bark beetle, Ips duplicatus, has become an infamous secondary pest of Norway spruce, causing extensive ecological and economic destruction in many Central European countries. Antennae are the primary olfactory organs that play a fundamental role in insect-host chemical communication; therefore, understanding morphology is crucial before conducting electrophysiological investigations. Here, we present our analysis of sensilla types on the antennal surface of I. duplicatus for the first time, using high-resolution-scanning electron microscopy. We studied the external morphological characteristics of antennae and the types, numbers, and distribution of the antennal sensilla in males and females. Our results revealed the presence of five different types of morphologically distinct sensilla: sensilla chaetica, sensilla basiconica, sensilla trichodea, sensilla coeloconica, and Böhm's sensilla. We observed two subtypes of sensilla chaetica (SChI and SChII), four subtypes of sensilla basiconica (SBI, SBII, SBIII, and SBIV), three subtypes of sensilla trichodea (STrII, STrIII, and STrIV) and two subtypes of sensilla coeloconica (SCoI and SCoII), respectively in I. duplicatus males and females. Minor differences in length and numbers between the sexes for some sensilla types were found. Distribution maps for different sensillar types were constructed, and specific areas for the respective sensilla were found. Possible functions of observed sensilla types are discussed. The present study provides a basis for future electrophysiological studies to understand how I. duplicatus detects ecologically important olfactory cues. RESEARCH HIGHLIGHTS: • The first report of morphology and distribution pattern of the antennal sensilla in Ips duplicatus is discussed. • A total of 6 main types and 11 antennal sensilla subtypes were observed in male and female Ips duplicatus. • Minor sex-specific differences were seen in the length and numbers in several sensilla types.
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Grants
- (IGA: A_21_29) Internal Grant Agency: MAYURI SHEWALE at Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Prague, Czech Republic
- CZ.02.1.01/0.0/0.0/15_003/0000433 EXTEMIT-K Project, Ministry of Education, Youth and Sport, Operation Programme Research, Development and Education
- LM2023050 MEYS CR (Czech Bioimaging) at Viničná Microscopy Core Facility (VMCF) at the Faculty of Science, Charles University, Prague, Czech Republic
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Affiliation(s)
- Mayuri Kashinath Shewale
- Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jana Nebesářová
- Faculty of Science, Charles University, Prague, Czech Republic
| | - Ewald Grosse-Wilde
- Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Blanka Kalinová
- Excellent Team for Mitigation, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech Republic
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Zou M, Xue Q, Teng Q, Zhang Q, Liu T, Li Y, Zhao J. Acaricidal activities of paeonol from Moutan Cortex, dried bark of Paeonia × suffruticosa, against the grain pest mite Aleuroglyphus ovatus (Acari: Acaridae). Exp Appl Acarol 2023; 91:615-628. [PMID: 37979065 DOI: 10.1007/s10493-023-00861-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
Aleuroglyphus ovatus (Acari: Acaridae) is a major pest mite of stored grains that is distributed worldwide. Paeonol, a phenolic component of the essential oil extracted from the Chinese herb Paeonia moutan, possesses a range of biological activities, including antiviral, antifungal and acaricidal activity. This study investigated the bioactivity of paeonol against A. ovatus and its effect on the activity of detoxification enzymes. The bioactivity of paeonol against A. ovatus was determined by contact, fumigation and repellency bioassays, and the mechanism was preliminarily explored via morphological observation of the color changes of mite epidermis and determination of the changing trend of some important enzymes associated with acaricidal efficacy in the mites. The results showed that the median lethal concentration (LC50) in the contact and fumigation bioassays was 9.832 μg/cm2 and 14.827 μg/cm3, respectively, and the acaricidal activity of paeonol was higher under direct contact than under fumigation. Dynamic symptomatology studies registered typical neurotoxicity symptoms including excitation, convulsion and paralysis in A. ovatus treated with paeonol. The enzyme activity of catalase (CAT), nitric oxide synthase (NOS) and glutathione-S-transferase (GST) was higher, whereas the activity of superoxide dismutase (SOD) and acetylcholinesterase (AChE) was lower, compared to the control group. CAT, NOS and GST were activated, whereas SOD and AChE activities were inhibited after paeonol intervention. Our findings suggest paeonol has potent acaricidal activity against A. ovatus and thus may be used as an agent to control the stored-product mite A. ovatus.
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Affiliation(s)
- Minghui Zou
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China
| | - Qiqi Xue
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China
| | - Qiao Teng
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China
| | - Qiqi Zhang
- School of Clinical Medicine, Wannan Medical College, Wuhu, 241002, Anhui, China
| | - Ting Liu
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China
| | - Yuanyuan Li
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China.
- Anhui Provincial Key Laboratory of Biological Macromolecules, Wuhu, 241002, Anhui, China.
| | - Jinhong Zhao
- Department of Medical Parasitology, Wannan Medical College, No. 22 Wenchang West Road, Wuhu, 241002, China.
- Anhui Provincial Key Laboratory of Biological Macromolecules, Wuhu, 241002, Anhui, China.
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33
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Jiraska L, Jones B, Knight SJ, Lennox J, Goddard MR. Soil and bark biodiversity forms discrete islands between vineyards that are not affected by distance or management regime. Environ Microbiol 2023; 25:3655-3670. [PMID: 37905675 DOI: 10.1111/1462-2920.16513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 09/20/2023] [Indexed: 11/02/2023]
Abstract
Within geographic regions, the existing data suggest that physical habitat (bark, soil, etc.) is the strongest factor determining agroecosystem microbial community assemblage, followed by geographic location (site), and then management regime (organic, conventional, etc.). The data also suggest community similarities decay with increasing geographic distance. However, integrated hypotheses for these observations have not been developed. We formalized and tested such hypotheses by sequencing 3.8 million bacterial 16S, fungal ITS2 and non-fungal eukaryotic COI barcodes deriving from 108 samples across two habitats (soil and bark) from six vineyards sites under conventional or conservation management. We found both habitat and site significantly affected community assemblage, with habitat the stronger for bacteria only, but there was no effect of management. There was no evidence for community similarity distance-decay within sites within each habitat. While communities significantly differed between vineyard sites, there was no evidence for between site community similarity distance-decay apart from bark bacterial communities, and no correlations with soil and bark pH apart from soil bacterial communities. Thus, within habitats, vineyard sites represent discrete biodiversity islands, and while bacterial, fungal and non-fungal eukaryotic biodiversity mostly differs between sites, the distance by which they are separated does not define how different they are.
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Affiliation(s)
- Lucie Jiraska
- The School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Beatrix Jones
- The School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Sarah J Knight
- The School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Jed Lennox
- The School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Matthew R Goddard
- The School of Biological Sciences, University of Auckland, Auckland, New Zealand
- The School of Life and Environmental Sciences, University of Lincoln, Lincoln, UK
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34
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Wang WY, Yamada A. Scrutinising an inscrutable bark-nesting ant: Exploring cryptic diversity in the Rhopalomastix javana (Hymenoptera: Formicidae) complex using DNA barcodes, genome-wide MIG-seq and geometric morphometrics. PeerJ 2023; 11:e16416. [PMID: 38025712 PMCID: PMC10657568 DOI: 10.7717/peerj.16416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Overlooking cryptic species diversity has grave implications on assessments of climate change impacts on biodiversity, ecosystems and organismal populations. Discriminating between cryptic species has long been challenging even for seasoned taxonomists, as interspecies morphological differences are often indiscernible by visual observation. Multi-disciplinary methods involving genetic analyses in conjunction with quantitative morphological data, should therefore be used to investigate boundaries between cryptic species. We adopted an integrated approach combining analyses of mitochondrial COI barcodes, a genome-wide dataset obtained via multiplexed inter-simple sequence repeats (ISSRs) genotyping by sequencing (MIG-seq), and geometric morphometrics to investigate species divergences in the inscrutable Rhopalomastix javana species complex. Objective clustering of COI suggested five putative molecular species units divergent from each other by thresholds within 4.2-10.6% uncorrected pairwise distance. Phylogenetic analyses based on concatenated MIG-seq data also recovered and strongly supported the monophyly of five major lineages in agreement with COI clusters. Co-ancestry analyses based on MIG-seq data using fineRADstructure resolved variable patterns of admixture linked to geography, and potential genetic drift within some putative species. Geometric morphometric analyses of specimen images further detected statistically significant differences in at least one of three anatomical aspects (Head, Meso, Profile) between all pairs of putative species. Head shape (full-face view) was determined to be the most informative character for species diagnosis, with relatively high classification accuracy. Thin-plate spline deformation grids highlighted areas of high variation between species in each shape for deeper taxonomic scrutiny. The presence of species from multiple distinct lineages existing in near-sympatry firmly demonstrates that R. javana comprises more than one closely-related species, but exact species boundaries are difficult to ascertain. Differences in elevation and its associated abiotic effects on ant adaptations and reproductive phenology may contribute to restricting gene flow and maintaining species boundaries between sympatric populations of the R. javana complex. We further assess the advantages and limitations of geometric morphometrics as a taxonomic tool. Despite its drawbacks, our combined approach has helped draw important insights on cryptic diversity in R. javana, and also identified gaps of knowledge that await address. Results from this study will inform and prime future in-depth taxonomic investigation on the R. javana complex, including formal descriptions and establishment of the five putative species.
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Affiliation(s)
- Wendy Y. Wang
- Lee Kong Chian Natural History Museum, National University of Singapore, Singapore, Singapore
| | - Aiki Yamada
- Systematic Zoology Laboratory, Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan
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de Alcantara Viana JV, Campos Duarte R, Vieira C, Augusto Poleto Antiqueira P, Bach A, de Mello G, Silva L, Rabelo Oliveira Leal C, Quevedo Romero G. Crypsis by background matching and disruptive coloration as drivers of substrate occupation in sympatric Amazonian bark praying mantises. Sci Rep 2023; 13:19985. [PMID: 37968331 PMCID: PMC10652001 DOI: 10.1038/s41598-023-46204-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/29/2023] [Indexed: 11/17/2023] Open
Abstract
Background matching and disruptive coloration are common camouflage strategies in nature, but few studies have accurately measured their protective value in living organisms. Amazon's Bark praying mantises exhibit colour patterns matching whitish and greenish-brown tree trunks. We tested the functional significance of background matching and disruptive coloration of different praying mantis morphospecies (white, grey and green) detected by DNA barcoding. Through image analysis, avian visual models and field experiments using humans as potential predators, we explored whether the background occupation of mantises provides camouflage against predation. Data were obtained for individuals against their occupied tree trunks (whitish or greenish-brown) and microhabitats (lichen or bryophyte patches), compared to non-occupied trunks. White and grey mantises showed lower colour contrasts against occupied trunks at the scale of tree trunk, with no differences in luminance contrasts. Conversely, green mantises showed lower colour and luminance contrasts against microhabitats and also exhibited high edge disruption against greenish-brown trunks. The camouflage of white and green mantis models against colour-matching trunks increased search time and reduced encounter distance of human predators. We highlight the importance of camouflage strategies at different spatial scales to enhance individual survival against predators. Specifically, we present a stunning study system to investigate the relationship of phylogenetically related species that use camouflage in sympatry.
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Affiliation(s)
- João Vitor de Alcantara Viana
- Programa de Pós-Graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil.
- Laboratório de Interações Multitróficas e Biodiversidade, Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, São Paulo, CEP 13083-970, Brazil.
| | - Rafael Campos Duarte
- Universidade Federal Do ABC, São Bernardo Do Campo, São Paulo, CEP 09606-045, Brazil
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn Campus, Penryn, TR10 9FE, UK
| | - Camila Vieira
- Departamento de Ciências Básicas, Universidade de São Paulo (USP), Campus de Pirassununga, Pirassununga, São Paulo, CEP 13635-900, Brazil
| | - Pablo Augusto Poleto Antiqueira
- Laboratório de Interações Multitróficas e Biodiversidade, Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, São Paulo, CEP 13083-970, Brazil
| | - Andressa Bach
- Programa de Pós-Graduação Em Ecologia E Conservação da Biodiversidade, Instituto de Biociências, Universidade Federal de Mato Grosso, Avenida Fernando Corrêa da Costa, N° 2367, Boa Esperança, Cuiabá, 78060900, Brazil
| | - Gabriel de Mello
- Programa de Pós-Graduação Em Ecologia E Conservação da Biodiversidade, Instituto de Biociências, Universidade Federal de Mato Grosso, Avenida Fernando Corrêa da Costa, N° 2367, Boa Esperança, Cuiabá, 78060900, Brazil
| | - Lorhaine Silva
- Programa de Pós-Graduação Em Ecologia E Conservação da Biodiversidade, Instituto de Biociências, Universidade Federal de Mato Grosso, Avenida Fernando Corrêa da Costa, N° 2367, Boa Esperança, Cuiabá, 78060900, Brazil
| | - Camila Rabelo Oliveira Leal
- Laboratório de Interações Multitróficas e Biodiversidade, Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, São Paulo, CEP 13083-970, Brazil
| | - Gustavo Quevedo Romero
- Laboratório de Interações Multitróficas e Biodiversidade, Departamento de Biologia Animal, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, Campinas, São Paulo, CEP 13083-970, Brazil
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Huang J, Zhu Y, Bian H, Song L, Liu Y, Lv Y, Ye X, Lin C, Li X. Insights into Enhanced Peroxydisulfate Activation with B and Fe Co-Doped Biochar from Bark for the Rapid Degradation of Guaiacol. Molecules 2023; 28:7591. [PMID: 38005313 PMCID: PMC10674898 DOI: 10.3390/molecules28227591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
A boron and iron co-doped biochar (B-Fe/biochar) from Masson pine bark was fabricated and used to activate peroxydisulfate (PDS) for the degradation of guaiacol (GL). The roles of the dopants and the contribution of the radical and non-radical oxidations were investigated. The results showed that the doping of boron and iron significantly improved the catalytic activity of the biochar catalyst with a GL removal efficiency of 98.30% within 30 min. The degradation of the GL mainly occurred through the generation of hydroxyl radicals (·OHs) and electron transfer on the biochar surface, and a non-radical degradation pathway dominated by direct electron transfer was proposed. Recycling the B-Fe/biochar showed low metal leaching from the catalyst and satisfactory long-term stability and reusability, providing potential insights into the use of metal and non-metal co-doped biochar catalysts for PDS activation.
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Affiliation(s)
- Jian Huang
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Yu Zhu
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Huiyang Bian
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China;
| | - Liang Song
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Yifan Liu
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Yuancai Lv
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Xiaoxia Ye
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Chunxiang Lin
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
| | - Xiaojuan Li
- College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350108, China; (J.H.); (Y.Z.); (L.S.); (Y.L.); (Y.L.); (X.Y.)
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Yang HD, Tang ZS, Xue TT, Zhu YY, Su ZH, Xu HB. Acyl-quinic acids from the root bark of Acanthopanax gracilistylus and their inhibitory effects on neutrophil elastase and cyclooxygenase-2 in vitro. Bioorg Chem 2023; 140:106798. [PMID: 37634270 DOI: 10.1016/j.bioorg.2023.106798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/09/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023]
Abstract
Eleven new acyl-quinic acids (AQAs) 1a-9, and 18 known AQAs 10-27 were isolated from the root bark of Acanthopanax gracilistylus W. W. Smith (Acanthopanacis Cortex). The planar structures of 1a-9 were determined based on their HR-ESIMS, IR, and NMR data. The absolute configurations of 1a-6 were identified by comparing the experimental and the calculated electronic circular dichroism (ECD) spectra. This is the first report of the isolation of AQAs from Acanthopanacis Cortex. Notably, 1a-6 were determined as unusual oxyneolignan-(-)-quinic acids heterodimers, representing a new class of natural products. The inhibitory activities of 1a-27 on neutrophil elastase (NE) and cyclooxygenase-2 (COX-2) were studied in vitro, and the results indicated they possessed significant inhibitory activities on COX-2. Among them, the IC50 values of 1a-9 were 0.63±0.014, 0.75±0.028, 0.15±0.023, 0.63±0.016, 0.30±0.013, 35.63±4.600, 8.70±1.241, 16.51±0.480, 0.69±0.049, 0.39±0.017, and 0.26±0.080 μM, respectively. This study represents the inaugural disclosure of the anti-COX-2 constituents found in Acanthopanacis Cortex, thereby furnishing valuable insights into the exploration of novel COX-2 inhibitors derived from natural reservoirs.
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Affiliation(s)
- Hao-Dong Yang
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Zhi-Shu Tang
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China; China Academy of Chinese Medical Sciences, Beijing 100700, PR China
| | - Tao-Tao Xue
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Ya-Ya Zhu
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Zeng-Hu Su
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China
| | - Hong-Bo Xu
- Co-construction Collaborative Innovation Center for Chinese Medicine Resources Industrialization by Shaanxi & Education Ministry, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi University of Chinese Medicine, Xianyang 712083, PR China.
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Dominique S, Alex PG, Christiane EY, Dodehe Y, Adèle KN. Diversity of Endophytic Fungi Isolated from the Bark of Ceiba pentandra (L.) Gaertn., (Bombacaceae) and Antibacterial Potential of Secalonic Acid A Produced by Diaporthe searlei EC 321. Chem Biodivers 2023; 20:e202301010. [PMID: 37814192 DOI: 10.1002/cbdv.202301010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
The objective of this study was to study the diversity of endophytic fungi isolated from Ceiba pentandra and to isolate their bioactive chemical compounds. The methodology used during this study consisted in isolating endophytic fungi from the bark of C. pentandra on Potato Agar. The isolates obtained were identified on the basis of the ITS regions of their ribosomal DNA. Antibacterial screening of the mycelium of endophytic fungi isolated was evaluated against multidrug-resistant E. coli and S. aureus strains. This screening led to the selection of isolates EC 321 and EC 28 for their ability to effectively inhibit the growth of the bacterial strains tested. EC 321 was grown and fermented on rice medium. Secondary metabolites were extracted with ethyl acetate. From the crude extract, secalonic acid A was isolated and identified by chromatographic and NMR. The in vitro activity of secalonic acid A against the growth of multiresistant bacterial strains was evaluated. Secalonic acid A was active against all multidrug-resistant bacterial strains E. coli 942, E. coli 4814, S. aureus 931, S. aureus 934, S. aureus MRSA 1872 and K. pneumonia 815 with respective MICs of 18.75; 18.75; 18.75; 4.7; 37.5 and 37.5 μg/mL.
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Affiliation(s)
- Sagou Dominique
- Biology and Health Laboratory, UFR des Biosciences, Félix Houphouët-Boigny University, 22 BP 582, Abidjan 22, Côte d'Ivoire
| | - Pakora Gilles Alex
- Biology and Health Laboratory, UFR des Biosciences, Félix Houphouët-Boigny University, 22 BP 582, Abidjan 22, Côte d'Ivoire
| | - Essoh You Christiane
- Department of Biochemistry-Genetics, UFR o f Biological Sciences, Péléforo Gon Coulibaly University, BP 1328, Korhogo, Côte d'Ivoire
| | - Yeo Dodehe
- Biology and Health Laboratory, UFR des Biosciences, Félix Houphouët-Boigny University, 22 BP 582, Abidjan 22, Côte d'Ivoire
| | - Kacou N'douba Adèle
- Department of Fundamental Sciences, UFR of Medical Sciences, BPV 166, Abidjan, Côte d'Ivoire
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Guček T, Jakše J, Radišek S. Optimization and Validation of Singleplex and Multiplex RT-qPCR for Detection of Citrus bark cracking viroid (CBCVd), Hop latent viroid (HLVd), and Hop stunt viroid (HSVd) in Hops ( Humulus lupulus). Plant Dis 2023; 107:3592-3601. [PMID: 37261880 DOI: 10.1094/pdis-11-22-2606-re] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Direct crop losses due to plant diseases and the measures used to control them have significant agricultural and economic impacts. The shift from diverse small-scale to large-scale genetically uniform monoculture production, along with agricultural intensification and climate change, has led to several known epidemics in man-made agroecosystems that have been rendered more vulnerable to pathogens. One such example is hop growing, which is threatened by highly aggressive hop viroids. Since 2007, almost one-third (about 500 ha) of Slovenian hop gardens have been affected by severe hop stunt disease caused by Citrus bark cracking viroid (CBCVd), which continues to spread despite strict prevention measures. We have developed and validated a multiplex RT-qPCR (mRT-qPCR) for the sensitive detection of CBCVd, Hop latent viroid (HLVd), and Hop stunt viroid (HSVd). Singleplex RT-qPCR assays were designed individually and subsequently combined in a one-step mRT-qPCR assay. Hop-specific mRNA170 and mRNA1192 internal controls were also developed to detect possible PCR inhibition. Analytical specificity was tested on 35 samples from different hosts, geographic regions, and combinations of viroids. Method validation showed that mRT-qPCR had lower sensitivity than singleplex RT-qPCR, while specificity, selectivity, repeatability, and reproducibility remained unchanged. The newly developed assays were found to be robust, reliable, and suitable for large-scale screening of hop viroids.
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Affiliation(s)
- Tanja Guček
- Slovenian Institute of Hop Research and Brewing, Žalec 3310, Slovenia
| | - Jernej Jakše
- Biotechnical Faculty, University of Ljubljana, Ljubljana 1000, Slovenia
| | - Sebastjan Radišek
- Slovenian Institute of Hop Research and Brewing, Žalec 3310, Slovenia
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Anyanwu GO, Ejike UD, Gyebi GA, Rauf K, Nisar-Ur-Rehman, Iqbal J, Zaib S, Usunobun U, Onyeneke EC, Alotaibi BS, Batiha GES. Phytochemical analysis, in vitro and in silico effects from Alstonia boonei De Wild stem bark on selected digestive enzymes and adipogenesis in 3T3-L1 preadipocytes. BMC Complement Med Ther 2023; 23:370. [PMID: 37864233 PMCID: PMC10588189 DOI: 10.1186/s12906-023-04202-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 10/06/2023] [Indexed: 10/22/2023] Open
Abstract
BACKGROUND Obesity is a global health issue arising from the unhealthy accumulation of fat. Medicinal plants such as Alstonia boonei stem bark has been reported to possess body weight reducing effect in obese rats. Thus, this study sought to investigate the in vitro and in silico effects of fractions from Alstonia boonei stem bark on selected obesity-related digestive enzymes and adipogenesis in 3T3-L1 preadipocytes. METHOD Two fractions were prepared from A. boonei: crude alkaloid fraction (CAF) and crude saponin fraction (CSF), and their phytochemical compounds were profiled using Liquid chromatography with tandem mass spectrometry (LCMS/MS). The fractions were assayed for inhibitory activity against lipase, α-amylase and α-glucosidase, likewise their antiadipogenic effect in 3T3-L1 adipocytes. The binding properties with the 3 enzymes were also assessed using in silico tools. RESULTS Eleven alkaloids and six saponin phytochemical compounds were identified in the CAF and CSF using LCMS/MS. The CAF and CSF revealed good inhibitory activity against pancreatic lipase enzyme, but weak and good activity against amylase respectively while only CSF had inhibitory activity against α-glucosidase. Both fractions showed antiadipogenic effect in the clearance of adipocytes and reduction of lipid content in 3T3-L1 adipocytes. The LCMS/MS identified compounds (41) from both fractions demonstrated good binding properties with the 3 enzymes, with at least the top ten compounds having higher binding energies than the reference inhibitors (acarbose and orlistat). The best two docked compounds to the three enzymes were firmly anchored in the substrate binding pockets of the enzymes. In a similar binding pattern as the reference acarbose, Estradiol-17-phenylpropionate (-11.0 kcal/mol) and 3α-O-trans-Feruloyl-2 α -hydroxy-12-ursen-28-oic acid (-10.0 kcal/mol) interacted with Asp197 a catalytic nucleophile of pancreatic amylase. Estradiol-17-phenylpropionate (-10.8 kcal/mol) and 10-Hydroxyyohimbine (-10.4 kcal/mol) interacted with the catalytic triad (Ser152-Asp176-His263) of pancreatic lipase while Estradiol-17-phenylpropionate (-10.1 kcal/mol) and 10-Hydroxyyohimbine (-9.9 kcal/mol) interacted with Asp616 and Asp518 the acid/base and nucleophilic residues of modelled α-glucosidase. CONCLUSION The antiobesity effect of A. boonei was displayed by both the alkaloid and saponin fractions of the plant via inhibition of pancreatic lipase and adipogenesis.
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Affiliation(s)
- Gabriel O Anyanwu
- Department of Biochemistry, Bingham University, Karu, Nasarawa State, Nigeria.
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan.
| | - Uju D Ejike
- Department of Biochemistry, Bingham University, Karu, Nasarawa State, Nigeria
| | - Gideon A Gyebi
- Department of Biochemistry, Bingham University, Karu, Nasarawa State, Nigeria
| | - Khalid Rauf
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Nisar-Ur-Rehman
- Department of Pharmacy, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Pakistan
| | - Sumera Zaib
- Department of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, Lahore, 54590, Pakistan
| | - Usunomena Usunobun
- Department of Biochemistry, Faculty of Basic Medical Sciences, Edo University Uzairue, Auchi, Edo State, Nigeria
| | - Eusebius C Onyeneke
- Department of Biochemistry, University of Benin, Benin City, Edo State, Nigeria
| | - Badriyah S Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, AlBeheira, 22511, Egypt
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de Becquevort S, Mckeown NJ, Blake M, Shaw PW. Time series DNA barcoding provides insight into factors influencing wood-boring and bark-feeding insect communities in Scots pine, Sitka spruce, and Noble fir stands. Environ Entomol 2023; 52:802-813. [PMID: 37590329 PMCID: PMC10578509 DOI: 10.1093/ee/nvad080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/11/2023] [Accepted: 07/28/2023] [Indexed: 08/19/2023]
Abstract
Bark-feeding and wood-boring insect pests can have significant negative impacts on conifers and wood production. The damage they cause is expected to increase in the future due to climate change and the growth of international trade. This study employed DNA barcoding of beetle juveniles (Coleoptera) sampled from standing trap trees and cut log piles at regular intervals over a 2-yr period to monitor the beetle community dynamics and associated environmental factors. Tree species was found to have a major influence on beetle communities, most strikingly at the start of early decay stages. Lower species diversity was reported from standing trap tree samples compared to log pile samples, likely due to higher residual defences in dying and recently dead trees. While the species identified from standing trap trees are more likely to be a threat to the forestry sector, the species found in the log piles are more likely to be beneficial due to their high abundance and their ability to compete with pests for breeding substrate. The analysis of beetles collected inside trees revealed additional information on ontogenetic niches and host preferences beyond that acquired solely from flight interception trap data. Our results offer insights on community composition and dynamics of bark-feeding and wood-boring insect species in Welsh conifer forests and provide resources for monitoring and management of potential pest species.
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Affiliation(s)
- Sophie de Becquevort
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Ceredigion SY23 3DA, UK
| | - Niall J Mckeown
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Ceredigion SY23 3DA, UK
| | - Max Blake
- Entomology, Forest Research, Alice Holt Lodge, Farnham, Surrey GU10 4LH, UK
| | - Paul W Shaw
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Ceredigion SY23 3DA, UK
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Jordal BH. An illustrated key and new records of the Afrotropical bark beetle genus Cryphalomimus Eggers (Coleoptera, Curculionidae). Zootaxa 2023; 5353:595-600. [PMID: 38220660 DOI: 10.11646/zootaxa.5353.6.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Indexed: 01/16/2024]
Abstract
The Afrotropical genus Cryphalomimus Eggers, 1927 is revised. New distributional records are added, showing a broad but scattered distribution of C. striatus Eggers, 1927. Internal morphological characters for this genus are described here for the first time. An illustrated identification key for the three included species is provided.
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Affiliation(s)
- B H Jordal
- Department of Natural History; University Museum of Bergen; University of Bergen; P.O. 7800 NO-5020 Bergen; Norway.
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Karpov AD, Gorbunov IY, Kalnin VV, Razdayvodin AN, Radin AI. Oscillatory Cs-137 Distribution Pattern in Scotch Pine Bark. Dokl Biol Sci 2023; 512:317-320. [PMID: 38087020 DOI: 10.1134/s0012496623700588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/18/2023] [Accepted: 06/18/2023] [Indexed: 12/18/2023]
Abstract
The vertical distribution of the anthropogenic radionuclide Cs-137 in the Scots pine (Pinus sylvestris L.) bark was studied in two model trees in the radioactive contamination zone of the Bryansk region. Each tree was divided into 10-cm bars from the trunk base to a length of 17 m, and the bark with the bast was separated from each bar to obtain a separate sample. In addition to Cs-137, the natural radionuclide K-40 was measured in the bark of model tree 2 from the trunk base to a 6.5-m length. Specific activities of Cs-137 and K-40 were measured by γ-ray spectrometry. The vertical distribution of Cs-137 in the bark was for the first time observed to have a wave-like pattern with a period of approximately 1 m. The K-40 distribution showed a similar oscillatory pattern, consistent with a similar mechanism responsible for potassium and cesium behavior in woody plants. The correlation coefficient between specific activities of Cs-137 in model trees 1 and 2 was 0.80; the correlation coefficient between Cs-137 and K-40 activities in model tree 2 was 0.45. Cs-137 was assumed to provide a radiotracer to assess the intake and distribution of chemical elements in Scotch pine tissues. The oscillatory pattern observed for the vertical distributions of cesium and potassium in the pine bark has not been described in the available literature before.
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Affiliation(s)
- A D Karpov
- All-Russian Research Institute of Silviculture and Mechanization of Forestry, Pushkino, Moscow oblast, Russia.
| | - I Yu Gorbunov
- All-Russian Research Institute of Silviculture and Mechanization of Forestry, Pushkino, Moscow oblast, Russia.
| | - V V Kalnin
- All-Russian Research Institute of Silviculture and Mechanization of Forestry, Pushkino, Moscow oblast, Russia
| | - A N Razdayvodin
- All-Russian Research Institute of Silviculture and Mechanization of Forestry, Pushkino, Moscow oblast, Russia
| | - A I Radin
- All-Russian Research Institute of Silviculture and Mechanization of Forestry, Pushkino, Moscow oblast, Russia
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Jeon S, Yoon S, Kim Y, Shin S, Ji H, Cho E, Park D, Jung E. The effect of Salix alba L. bark extract on dark circles in vitro and in vivo. Int J Cosmet Sci 2023; 45:636-646. [PMID: 37235713 DOI: 10.1111/ics.12873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/09/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023]
Abstract
OBJECTIVE Dark circles in the infraorbital area are a common cosmetic concern among individuals because they exhibit fatigue and are undesirable across all ages. Of the dark circle etiologies, blood stasis by poor-vascular integrity can cause darkening of the lower eyelid skin, which might be alleviated by reduced endothelial permeability. In this study, we investigated the effects of Salix alba bark extract (SABE) on the synthesis of hyaluronic acid (HA) in fibroblasts and vascular integrity protection from inflammatory cytokine. We also performed a clinical trial investigating the effect of SABE on dark circles. METHODS To confirm the effect of SABE on HA synthesis in human dermal fibroblasts (HDFs), we performed ELISA and real-time PCR. We investigated the interaction HDF-secreted substance with vascular integrity, and human dermal microvascular endothelial cells (HMEC-1) were treated with conditioned medium (CM) from HDF treated with or without SABE. Subsequently, we conducted a clinical study on 29 subjects by having them apply SABE containing cream for 8 weeks. RESULTS Salix alba bark extract treatment increased HA synthesis and regulated HMW-HA-related gene expressions in HDF. CM from SABE-treated HDF alleviated endothelial permeability and led to improved vascular integrity in HMEC-1 cells. Treatment with the cream containing 2% SABE for 8 weeks improved the parameters measuring dark circles, skin microcirculation and elasticity. CONCLUSION Our results showed that SABE could protect against dark circles in vitro, and that topical treatment of SABE improved the clinical indexes of dark circles in a clinical study. Therefore, SABE can be used as an active ingredient for improving dark circles.
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Affiliation(s)
- Suwon Jeon
- BioSpectrum Life Science Institute, Yongin, Korea
| | - Sohyun Yoon
- BioSpectrum Life Science Institute, Yongin, Korea
| | - Yuna Kim
- BioSpectrum Life Science Institute, Yongin, Korea
| | | | - Hyanggi Ji
- BioSpectrum Life Science Institute, Yongin, Korea
| | - Eunae Cho
- BioSpectrum Life Science Institute, Yongin, Korea
| | | | - Eunsun Jung
- BioSpectrum Life Science Institute, Yongin, Korea
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Seephonkai P, Kaewtong C, Wangchuk P, Jearawuttanakul K, Kanjanasirirat P, Borwornpinyo S, Khulmanee T, Patrapuvich R. Bioassay-Guided Isolation and Identification of Antiplasmodial Compounds from the Stem Bark of Clausena excavata. Planta Med 2023; 89:1165-1169. [PMID: 37414059 DOI: 10.1055/a-2112-6631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Clausena excavata is a medicinal plant widely distributed in Southeast Asia. It is used for a variety of indications, including to treat malaria. In our present study, a phytochemical study of the methanol extract from the stem bark of C. excavata led to the isolation of five pyranocoumarins, nordentatin (1: ), dentatin (2: ), kinocoumarin (3: ), clausarin (4: ), and clausenidin (5: ), and a coumarin, 8-hydroxy-3″,4″-dihydrocapnolactone-2',3'-diol (6: ). The isolation of compound 6: from C. excavata and the antiplasmodial activities against a multidrug-resistant K1 strain of Plasmodium falciparum of 1, 3: , and 5: were reported for the first time. Compounds 3: and 4: exhibited potent antiplasmodial activities with EC50 values of 1.10 and 0.58 µM, respectively, while 1: and 5: had EC50 values of 5.62 and 7.15 µM, respectively. A prenyl group attached to the C-3 or C-12 position on the pyranocoumarin ring probably plays an important role on the activity. A hydroxyl group at the C-10 position is also likely to enhance the activity.
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Affiliation(s)
- Prapairat Seephonkai
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham, Thailand
| | - Chatthai Kaewtong
- Multidisciplinary Research Unit of Pure and Applied Chemistry, Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham, Thailand
| | - Phurpa Wangchuk
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns Campus, Smithfield, Queenland, Australia
| | - Kedchin Jearawuttanakul
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | - Suparerk Borwornpinyo
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Tachin Khulmanee
- Drug Research Unit for Malaria, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Rapatbhorn Patrapuvich
- Drug Research Unit for Malaria, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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da Silva BAF, Pessoa RT, da Costa RHS, de Oliveira MRC, Ramos AGB, de Lima Silva MG, da Silva LYS, Medeiros CR, Florencio SGL, Ribeiro-Filho J, Coutinho HDM, Raposo A, Yoo S, Han H, de Menezes IRA, Quintans Júnior LJ. Evaluation of the antiedematogenic and anti-inflammatory properties of Ximenia americana L. (Olacaceae) bark extract in experimental models of inflammation. Biomed Pharmacother 2023; 166:115249. [PMID: 37597323 DOI: 10.1016/j.biopha.2023.115249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 08/21/2023] Open
Abstract
Edema is one of the obvious indicators of inflammation and a crucial factor to take into account when assessing a substance's capacity to reduce inflammation. We aimed to evaluate the antiedematogenic and anti-inflammatory profile of the hydroethanolic barks extract of Ximenia americana (HEXA). The possible antiedematogenic and anti-inflammatory effect of EHXA (50, 100 mg/kg and 250 mg/kg v.o) was evaluated using the paw edema induced by carrageenan, zymosan, dextran, CFA and by different agents inflammatory (serotonin, histamine, arachidonic acid and PGE2), and pleurisy model induced by carrageenan and its action on IL-1β and TNF-α levels was also evaluated. HEXA demonstrated a significant antiedematogenic effect at concentrations of 50, 100 and 250 mg/kg on paw edema induced by carrageenan, zymosan and dextran. However, the concentration of 50 mg/kg as standard, demonstrating the effect in the subchronic model, induced CFA with inhibition of 59.06 %. In models of histamine-induced paw edema, HEXA showed inhibition of - 30 min: 40.49 %, 60 min: 44.70 % and 90 min: 48.98 %; serotonin inhibition - 30 min: 57.09 %, 60 min: 66.04 % and 90 min: 61.79 %; arachidonic acid inhibition - 15 min: 36.54 %, 30 min: 51.10 %, 45 min: 50.32 % and 60 min: 76.17 %; and PGE2 inhibition - 15 min: 67.78 %, 30 min: 62.30 %, 45 min: 54.25 % and 60 min: 47.92 %. HEXA significantly reduced (p < 0.01) leukocyte migration in the pleurisy model and reduced TNF-α and IL-1β levels in pleural lavage (p < 0.0001). The results showed that HEXA has the potential to have an antiedematogenic impact in both acute and chronic inflammation processes, with a putative mode of action including the suppression or regulation of inflammatory mediators.
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Affiliation(s)
- Bruno Anderson Fernandes da Silva
- Laboratory of Neurosciences and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, SE, Brazil
| | - Renata Torres Pessoa
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Roger Henrique Sousa da Costa
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Maria Rayane Correia de Oliveira
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Andreza Guedes Barbosa Ramos
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Maria Gabriely de Lima Silva
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Lucas Yure Santos da Silva
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Cassio Rocha Medeiros
- CECAPE College, Av. Padre Cícero, 3917 - São José, Juazeiro do Norte, CE 63024-015, Brazil
| | | | | | | | - António Raposo
- CBIOS (Research Center for Biosciences and Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Sunghoon Yoo
- Audit Team, Hanmoo Convention (Oakwood Premier), 49, Teheran-ro 87-gil, Gangnam-gu, Seoul 06164, South Korea.
| | - Heesup Han
- College of Hospitality and Tourism Management, Sejong University, 98 Gunja-Dong, Gwanjin-Gu, Seoul 143-747, South Korea.
| | - Irwin Rose Alencar de Menezes
- Laboratory of Pharmacology and Molecular Chemistry, Department of Biological Chemical, Regional University of Cariri, Cel Antonio Luis 1161, Pimenta, CEP 63105- 000, Crato, CE, Brazil
| | - Lucindo José Quintans Júnior
- Laboratory of Neurosciences and Pharmacological Assays, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE, Brazil; Health Sciences Graduate Program, Federal University of Sergipe, Aracaju, SE, Brazil
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Lee T, Yeom W, Kim H, Beuchat LR, Ryu JH. Influence of diluent on antimicrobial activity of cinnamon bark essential oil vapor against Staphylococcus aureus and Salmonella enterica on a laboratory medium and beef jerky. Food Microbiol 2023; 115:104335. [PMID: 37567638 DOI: 10.1016/j.fm.2023.104335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/21/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023]
Abstract
The influence of chemical diluents on the antimicrobial activity of plant essential oil (EO) vapors was evaluated. We first determined if vapors generated from 22 chemical diluents not containing EO had antimicrobial activities. Ethyl ether vapor retarded the growth of S. aureus. The minimal inhibitory concentrations (MICs) and the minimal lethal concentrations (MLCs) of cinnamon bark EO vapor, which was diluted in and generated from 21 diluents, against S. aureus and S. enterica were determined. Cinnamon bark EO vapor showed significantly (P ≤ 0.05) lower MICs against S. aureus when diluted in dimethyl sulfoxide (DMSO), ethanol, ethyl acetate, or jojoba oil, and against S. enterica when diluted in DMSO, ethanol, or jojoba oil, compared to those in other diluents. We compared antimicrobial activities of cinnamon bark EO vapor diluted in DMSO, ethanol, ethyl acetate, or jojoba oil against S. aureus and S. enterica on beef jerky as a food model. Antimicrobial activity was significantly (P ≤ 0.05) higher when vaporized from DMSO. These results indicate that antimicrobial activity of cinnamon bark EO vapor may vary significantly (P ≤ 0.05) depending on the type of diluent from which it is vaporized. These observations provide basic information when developing food and food-contact surface decontamination strategies using EO vapors.
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Affiliation(s)
- Taehyung Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Woorim Yeom
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Hoikyung Kim
- Department of Food and Nutrition, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Larry R Beuchat
- Center for Food Safety and Department of Food Science and Technology, University of Georgia, 1109 Experiment Street, Griffin, GA, 30223-1797, USA
| | - Jee-Hoon Ryu
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
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Ramírez-Reyes T, Armendáriz-Toledano F, Rodríguez LGC. Rearranging and completing the puzzle: Phylogenomic analysis of bark beetles Dendroctonus reveals new hypotheses about genus diversification. Mol Phylogenet Evol 2023; 187:107885. [PMID: 37467902 DOI: 10.1016/j.ympev.2023.107885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/07/2023] [Accepted: 07/16/2023] [Indexed: 07/21/2023]
Abstract
Studies carried out on bark beetles within Dendroctonus have been extensive and revealed diverse information in different areas of their natural history, taxonomy, evolution, and interactions, among others. Despite these efforts, phylogenetic hypotheses have remained obscured mainly due to limited information analyzed (taxonomic, gene sampling, or both) in studies focused on obtaining evolutionary hypotheses for this genus. With the aim of filling these gaps in the evolutionary history for Dendroctonus, we analyzed ∼1800 loci mapped to a reference genome obtained for 20 of the 21 species recognized to date, minimizing the impact of missing information and improving the assumption of orthology in a phylogenomic framework. We obtained congruent phylogenetic topologies from two phylogenomic inference strategies: loci concatenation (ML framework) and a multispecies coalescent model (MSC) through the analysis of site pattern frequencies (SNPs). Dendroctonus is composed of two major clades (A and B), each containing five and four subclades, respectively. According to our divergence dating analysis, the MRCA for Dendroctonus dates back to the early Eocene, while the MRCA for each major clade diverged in the mid-Eocene. Interestingly, most of the speciation events of extant species occurred during the Miocene, which could be correlated with the diversification of pine trees (Pinus). The MRCA for Dendroctonus inhabited large regions of North America, with all ancestors and descendants of clade A having diversified within this region. The Mexican Transition Zone is important in the diversification processes for the majority of clade A species. For clade B, we identified two important colonization events to the Old World from America: the first in the early Oligocene from the Arctic to Asia (via Beringia), and the second during the Miocene from the Arctic-Western-Alleghany region to Europe and Siberia (also via Beringia). Our genomic analyses also supported the existence of hidden structured lineages within the frontalis complex, and also that D. beckeri represent a lineage independent from D. valens, as previously suggested. The information presented here updates the knowledge concerning the diversification of a genus with remarkable ecological and economic importance.
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Affiliation(s)
- Tonatiuh Ramírez-Reyes
- Instituto de Biología, Departamento de Zoología, Colección Nacional de Insectos, Universidad Nacional Autónoma de México, Circuito Zona Deportiva S/N, C.U., Coyoacán, 04510 Ciudad de México, Mexico; Facultad de Ciencias Forestales, Universidad Autónoma de Nuevo León, Carretera Nacional 85, Km. 145, 67700 Linares, Nuevo León, Mexico
| | - Francisco Armendáriz-Toledano
- Instituto de Biología, Departamento de Zoología, Colección Nacional de Insectos, Universidad Nacional Autónoma de México, Circuito Zona Deportiva S/N, C.U., Coyoacán, 04510 Ciudad de México, Mexico.
| | - Luis Gerardo Cuéllar Rodríguez
- Facultad de Ciencias Forestales, Universidad Autónoma de Nuevo León, Carretera Nacional 85, Km. 145, 67700 Linares, Nuevo León, Mexico
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Carneiro Lobo LA, Alves Santos P, de Sousa JT, Picada JN, Bianchi SE, Bassani VL, da Silva FC, Ethur EM, Goettert MI, Pereira P. Toxicological profile of the Hymenaea courbaril stem bark hydroalcoholic extract using in vitro bioassays and an alternative in vivo Caenorhabditis elegans model. J Toxicol Environ Health A 2023; 86:678-695. [PMID: 37482814 DOI: 10.1080/15287394.2023.2237069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Hymenaea genus has been used in folk medicine in Brazil, but few studies investigated its toxicity profile. Thus, the aim of this study was to determine toxicological parameters of Hymenaea courbaril stem bark hydroalcoholic extract by utilizing three cell lines including murine macrophages (RAW 264.7), mouse fibroblast cells (L929) and human lung fibroblast (MRC-5), as well as Salmonella/microsome assay, and in vivo Caenorhabditis elegans model. The predominant detected phytoconstituents in the extract were coumarins, flavonoids, phenolics, tannins and saponins and by HPLC analysis, astilbin (AST) was found to be the main component. The DPPH assay demonstrated that H. courbaril hydroalcoholic extract exhibited potent antioxidant activity, with an IC50 of 3.12 μg/ml. The extract at concentrations of 400 and 800 μg/ml decreased cell viability 48 hr after treatment in L929 and MRC-5 cell lines. In the Raw 264.7 strain, just the highest concentration (800 μg/ml) lowered cell viability within 48 hr following exposure. The concentration of 100 μg/ml did not markedly affect cell viability in the trypan blue assay. In the alkaline comet assay the extract was found to be non-genotoxic. In the Ames test, the extract exhibited low mutagenic potential without metabolic activation, since only the highest concentrations produced an effect. H. courbaril extract only affected the survival of C. elegans at concentrations of 800 and 1600 μl/ml. These findings demonstrate that H. courbaril extract appears to exert low toxicity as evidenced in vitro and mutagenicity assays; however, the biological relevance of the response of C. elegans survival to safety assessments needs further studies.
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Affiliation(s)
- Larissa Aline Carneiro Lobo
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Peterson Alves Santos
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Jayne Torres de Sousa
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Jaqueline Nascimento Picada
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Sara Elis Bianchi
- Galenic Development Laboratory, Graduate in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Valquiria Linck Bassani
- Galenic Development Laboratory, Graduate in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | | | - Eduardo Miranda Ethur
- Postgraduate Program in Biotechnology and Post Graduate Program in Environment and Development, University of Vale Do Taquari (Univates), Lajeado, RS - Brazil
| | - Márcia Inês Goettert
- Postgraduate Program in Biotechnology and Post Graduate Program in Environment and Development, University of Vale Do Taquari (Univates), Lajeado, RS - Brazil
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
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Zintle M, Siwaphiwe P, Marthe Carine F, Thierry Youmbi F, Derek Tantoh N, Suprakas Sinha R, Blessing Atim A. Antibacterial study of carbopol-mastic gum/silver nanoparticle-based topical gels with carvacrol/neem bark extract in vitro. J Wound Care 2023; 32:clxxxi-clxxxix. [PMID: 37703219 DOI: 10.12968/jowc.2023.32.sup9a.clxxxi] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
BACKGROUND Resistance to antimicrobial drugs as a result of prolonged use usually results in clinical failure, especially in wound infections. Development of effective antimicrobial therapeutics for the management of infected wounds from a natural source with improved therapeutic effects is a pressing need. OBJECTIVE In this study, carbopol-mastic gum-based topical gels were loaded with silver nanoparticles in combination with either neem bark extract or carvacrol oil. The effect of combining silver nanoparticles with neem bark extract or the essential oil carvacrol in the prepared gel formulations was investigated on selected bacterial strains. METHOD The prepared gels were characterised by Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM) and ultraviolet-visible (UV-vis) spectroscopy, followed by antimicrobial analysis against selected strains of bacteria. RESULTS There was no interaction between the loaded natural extract or essential oil and the polymer used for the preparation of the formulations, which was visible from the FTIR spectra of the formulations. The gels were selective and effective against selected strains of bacteria. However, the combination of the silver nanoparticles with essential oil or natural extract in some of the gel formulations rendered the formulation ineffective against some of the bacterial strains. CONCLUSION The gel formulations were effective against bacterial strains such as Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Enterococcus faecalis which are the common causes of wound infections. Incorporation of silver nanoparticles into the topical formulations with natural extracts is usually a good approach to overcome antibiotic-resistant infections. However, the combination of antibacterial agents must be managed carefully.
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Affiliation(s)
- Mbese Zintle
- Department of Chemistry, University of Fort Hare, Alice Campus, Eastern Cape, South Africa
| | - Peteni Siwaphiwe
- Department of Chemistry, University of Fort Hare, Alice Campus, Eastern Cape, South Africa
| | - Fotsing Marthe Carine
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
| | - Fonkui Thierry Youmbi
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
| | - Ndinteh Derek Tantoh
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
| | - Ray Suprakas Sinha
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa
- DST/CSIR National Centre for Nanostructured Materials, Council for Scientific and Industrial Research, Pretoria 0001, South Africa
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