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Barbosa P, Faria JMS, Cavaco T, Figueiredo AC, Mota M, Vicente CSL. Nematicidal Activity of Phytochemicals against the Root-Lesion Nematode Pratylenchus penetrans. PLANTS (BASEL, SWITZERLAND) 2024; 13:726. [PMID: 38475572 DOI: 10.3390/plants13050726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Plant-parasitic nematodes (PPNs) are highly damaging pests responsible for heavy losses in worldwide productivity in a significant number of important plant crops. Common pest management strategies rely on the use of synthetic chemical nematicides, which have led to serious concerns regarding their impacts on human health and the environment. Plant natural products, or phytochemicals, can provide a good source of agents for sustainable control of PPNs, due to their intrinsic characteristics such as higher biodegradability, generally low toxicity for mammals, and lower bioaccumulation in the environment. In this work, the nematicidal activity of 39 phytochemicals was determined against the root-lesion nematode (RLN) Pratylenchus penetrans using standard direct and indirect contact methodologies. Overall, the RLN was tolerant to the tested phytochemicals at the highest concentration, 2 mg/mL, seldom reaching full mortality. However, high activities were obtained for benzaldehyde, carvacrol, 3-octanol, and thymol, in comparison to other phytochemicals or the synthetic nematicide oxamyl. These phytochemicals were seen to damage nematode internal tissues but not its cuticle shape. Also, the environmental and (eco)toxicological parameters reported for these compounds suggest lower toxicity and higher safety of use than oxamyl. These compounds appear to be good candidates for the development of biopesticides for a more sustainable pest management strategy.
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Affiliation(s)
- Pedro Barbosa
- MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Jorge M S Faria
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Quinta do Marquês, 2780-157 Oeiras, Portugal
- GREEN-IT Bioresources for Sustainability, Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa (ITQB NOVA), Av. da República, 2780-157 Oeiras, Portugal
| | - Tomás Cavaco
- Instituto Nacional de Investigação Agrária e Veterinária (INIAV, I.P.), Quinta do Marquês, 2780-157 Oeiras, Portugal
| | - Ana Cristina Figueiredo
- Centro de Estudos do Ambiente e do Mar (CESAM Lisboa), Faculdade de Ciências, Universidade de Lisboa, Biotecnologia Vegetal, DBV, C2, Piso 1, Campo Grande, 1749-016 Lisboa, Portugal
| | - Manuel Mota
- MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
| | - Cláudia S L Vicente
- MED-Mediterranean Institute for Agriculture, Environment and Development & CHANGE-Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
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Afridi MS, Kumar A, Javed MA, Dubey A, de Medeiros FHV, Santoyo G. Harnessing root exudates for plant microbiome engineering and stress resistance in plants. Microbiol Res 2024; 279:127564. [PMID: 38071833 DOI: 10.1016/j.micres.2023.127564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/02/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023]
Abstract
A wide range of abiotic and biotic stresses adversely affect plant's growth and production. Under stress, one of the main responses of plants is the modulation of exudates excreted in the rhizosphere, which consequently leads to alterations in the resident microbiota. Thus, the exudates discharged into the rhizospheric environment play a preponderant role in the association and formation of plant-microbe interactions. In this review, we aimed to provide a synthesis of the latest and most pertinent literature on the diverse biochemical and structural compositions of plant root exudates. Also, this work investigates into their multifaceted role in microbial nutrition and intricate signaling processes within the rhizosphere, which includes quorum-sensing molecules. Specifically, it explores the contributions of low molecular weight compounds, such as carbohydrates, phenolics, organic acids, amino acids, and secondary metabolites, as well as the significance of high molecular weight compounds, including proteins and polysaccharides. It also discusses the state-of-the-art omics strategies that unveil the vital role of root exudates in plant-microbiome interactions, including defense against pathogens like nematodes and fungi. We propose multiple challenges and perspectives, including exploiting plant root exudates for host-mediated microbiome engineering. In this discourse, root exudates and their derived interactions with the rhizospheric microbiota should receive greater attention due to their positive influence on plant health and stress mitigation.
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Affiliation(s)
- Muhammad Siddique Afridi
- Department of Plant Pathology, Federal University of Lavras, CP3037, 37200-900 Lavras, MG, Brazil.
| | - Ashwani Kumar
- Metagenomics and Secretomics Research Laboratory, Department of Botany, Dr. Harisingh Gour University (A Central University), Sagar 470003, MP, India
| | - Muhammad Ammar Javed
- Institute of Industrial Biotechnology, Government College University, Lahore 54000, Pakistan
| | - Anamika Dubey
- Metagenomics and Secretomics Research Laboratory, Department of Botany, Dr. Harisingh Gour University (A Central University), Sagar 470003, MP, India
| | | | - Gustavo Santoyo
- Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, 58030 Morelia, Mexico.
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Coqueiro A, Fernandes DC, Danuello A, Regasini LO, Cardoso-Lopes EM, Young MCM, Brandão Torres LM, Campos VP, Silva DHS, da Silva Bolzani V, de Oliveira DF. Nematostatic activity of isoprenylated guanidine alkaloids from Pterogyne nitens and their interaction with acetylcholinesterase. Exp Parasitol 2023; 250:108542. [PMID: 37178971 DOI: 10.1016/j.exppara.2023.108542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/03/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023]
Abstract
Although new nematicides have appeared, the demand for new products less toxic and more efficient for the control of plant-parasitic nematodes are still high. Consequently, studies on natural secondary metabolites from plants, to develop new nematicides, have increased. In this work, nineteen extracts from eleven Brazilian plant species were screened for activity against Meloidogyne incognita. Among them, the extracts of Piterogyne nitens showed a potent nematostatic activity. The alkaloid fraction obtained from the ethanol extract of leaves of P. nitens was more active than the coming extract. Due to the promising activity from the alkaloid fraction, three isoprenylated guanidine alkaloids isolated from this fraction, galegine (1), pterogynidine (2), and pterogynine (3) were tested, showing similar activity to the alkaloid fraction, which was comparable to that of the positive control Temik at 250 μg/mL. At lower concentrations (125-50 μg/mL), compound 2 showed to be the most active one. As several nematicides act through inhibition of acetylcholinesterase (AChE), the guanidine alkaloids were also employed in two in vitro AChE assays. In both cases, compound 2 was more active than compounds 1 and 3. Its activity was considered moderated compared to the control (physostigmine). Compound 2 was selected for an in silico study with the electric eel (Electrophorus electricus) AChE, showing to bind mostly to the same site of physostigmine in the AChEs, pointing out that this could be the mechanism of action for this compound. These results suggested that the guanidine alkaloids 1,2 and 3 from P. nitens are promising for the development of new products to control M. incognita, especially guanidine 2, and encourage new investigations to confirm the mechanism of action, as well as to determine the structure-activity relationship of the guanidine alkaloids.
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Affiliation(s)
- Aline Coqueiro
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil; Department of Chemistry, Federal University of Technology - Paraná (UTFPR), Ponta Grossa, PR, 84017-220, Brazil.
| | - Daniara Cristina Fernandes
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil; Federal Institute of Education, Science and Technology of São Paulo (IFSP), Matão, SP, 15991-502, Brazil
| | - Amanda Danuello
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil; Institute of Chemistry, Federal University of Uberlândia (UFU), Uberlândia, MG, 38408-100, Brazil
| | - Luis Octávio Regasini
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil
| | | | | | | | - Vicente Paulo Campos
- Department of Phytopathology, Federal University of Lavras (UFLA), Lavras, MG, 37200-000, Brazil
| | - Dulce Helena Siqueira Silva
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil
| | - Vanderlan da Silva Bolzani
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, 14801-970, Brazil
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4
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Bautista-Sopelana LM, Bolívar P, Gómez-Muñoz MT, Martínez-Díaz RA, Andrés MF, Alonso JC, Bravo C, González-Coloma A. Bioactivity of plants eaten by wild birds against laboratory models of parasites and pathogens. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1027201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Plants are not only used as energy and nutrient resources for herbivores. Plants can be ingested because of their activity against host parasites and other pathogens. This so-called medicinal role of plants is well reported in ethnopharmacology and under-reported in wild animals. More studies on wild animals are needed because any plant in the world contains bioactive compounds, and probably all plants, no matter how toxic they are, experience herbivory. For example, we tested the activity of extracts and essential oils from Papaver rhoeas and Echium plantagineum against a selection of laboratory pathogens because Great bustards Otis tarda preferred these plants during the mating season, with male fecal droppings showing a higher frequency of P. rhoeas particles than the fecal droppings of females. We hypothesized that P. rhoeas could be helpful for males in the mating season if any part of this plant harbors bioactivity against parasites and other pathogens. Males’ immune system is weakened during the mating season because of their investment in secondary sexual characters and sexual display. As a first exploration of the bioactivity of these plants, we evaluated extracts of both plants against a sample of laboratory models, including a flagellated protozoon (Trichomonas gallinae), a nematode (Meloidogyne javanica) and a fungus (Aspergillus niger). Non-polar and polar extracts of the aerial parts of P. rhoeas, especially the extracts of flowers and capsules, and the extracts of leaves and flowers of E. plantagineum showed activity against nematodes and trichomonads. The bioactivity of plants against parasites could explain the foraging behavior of stressed animals. The chemical communication underpinning the capacity of fauna to recognize those plants is far less known.
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Dagoneau D, Quinodoz P, Kolleth A, Bozoflou M, Horoz B, Catak S, Poisson PA, Lumbroso A, Sulzer-Mossé S, De Mesmaeker A. A Short and Versatile Approach for the Synthesis of Pyrrolizidinones. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dylan Dagoneau
- Syngenta Crop Protection AG Crop Protection Research, Research Chemistry Schaffhauserstrasse 101 4332 Stein SWITZERLAND
| | - Pierre Quinodoz
- Syngenta Crop Protection AG Research Chemistry Stein SWITZERLAND
| | - Amandine Kolleth
- Syngenta Crop Protection AG Research Chemistry Stein SWITZERLAND
| | - Mert Bozoflou
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | - Beyza Horoz
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | - Saron Catak
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | | | | | | | - Alain De Mesmaeker
- Syngenta Crop Protection AG Crop Protection Research, Research Chemistry Schaffhauserstrasse 101 4332 Stein SWITZERLAND
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Martínez-Medina A, Mbaluto CM, Maedicke A, Weinhold A, Vergara F, van Dam NM. Leaf herbivory counteracts nematode-triggered repression of jasmonate-related defenses in tomato roots. PLANT PHYSIOLOGY 2021; 187:1762-1778. [PMID: 34618073 PMCID: PMC8566281 DOI: 10.1093/plphys/kiab368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/06/2021] [Indexed: 05/17/2023]
Abstract
Shoot herbivores may influence the communities of herbivores associated with the roots via inducible defenses. However, the molecular mechanisms and hormonal signaling underpinning the systemic impact of leaf herbivory on root-induced responses against nematodes remain poorly understood. By using tomato (Solanum lycopersicum) as a model plant, we explored the impact of leaf herbivory by Manduca sexta on the performance of the root knot nematode Meloidogyne incognita. By performing glasshouse bioassays, we found that leaf herbivory reduced M. incognita performance in the roots. By analyzing the root expression profile of a set of oxylipin-related marker genes and jasmonate root content, we show that leaf herbivory systemically activates the 13-Lipoxigenase (LOX) and 9-LOX branches of the oxylipin pathway in roots and counteracts the M. incognita-triggered repression of the 13-LOX branch. By using untargeted metabolomics, we also found that leaf herbivory counteracts the M. incognita-mediated repression of putative root chemical defenses. To explore the signaling involved in this shoot-to-root interaction, we performed glasshouse bioassays with grafted plants compromised in jasmonate synthesis or perception, specifically in their shoots. We demonstrated the importance of an intact shoot jasmonate perception, whereas having an intact jasmonate biosynthesis pathway was not essential for this shoot-to-root interaction. Our results highlight the impact of leaf herbivory on the ability of M. incognita to manipulate root defenses and point to an important role for the jasmonate signaling pathway in shoot-to-root signaling.
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Affiliation(s)
- Ainhoa Martínez-Medina
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
- Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA‐CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
- Author for communication:
| | - Crispus M Mbaluto
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
| | - Anne Maedicke
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
| | - Alexander Weinhold
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
| | - Fredd Vergara
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
| | - Nicole M van Dam
- Molecular Interaction Ecology, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Puschstraße 4, 04103 Leipzig, Germany
- Institute of Biodiversity, Friedrich Schiller University Jena, Dornburgerstraße 159, 07743 Jena, Germany
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7
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Velasco-Azorsa R, Cruz-Santiago H, Cid del Prado-Vera I, Ramirez-Mares MV, Gutiérrez-Ortiz MDR, Santos-Sánchez NF, Salas-Coronado R, Villanueva-Cañongo C, Lira-de León KI, Hernández-Carlos B. Chemical Characterization of Plant Extracts and Evaluation of their Nematicidal and Phytotoxic Potential. Molecules 2021; 26:molecules26082216. [PMID: 33921412 PMCID: PMC8070253 DOI: 10.3390/molecules26082216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/02/2021] [Accepted: 04/09/2021] [Indexed: 11/16/2022] Open
Abstract
Nacobbus aberrans ranks among the "top ten" plant-parasitic nematodes of phytosanitary importance. It causes significant losses in commercial interest crops in America and is a potential risk in the European Union. The nematicidal and phytotoxic activities of seven plant extracts against N. aberrans and Solanum lycopersicum were evaluated in vitro, respectively. The chemical nature of three nematicidal extracts (EC50,48h ≤ 113 µg mL-1) was studied through NMR analysis. Plant extracts showed nematicidal activity on second-stage juveniles (J2): (≥87%) at 1000 µg mL-1 after 72 h, and their EC50 values were 71.4-468.1 and 31.5-299.8 µg mL-1 after 24 and 48 h, respectively. Extracts with the best nematicidal potential (EC50,48h < 113 µg mL-1) were those from Adenophyllum aurantium, Alloispermum integrifolium, and Tournefortia densiflora, which inhibited L. esculentum seed growth by 100% at 20 µg mL-1. Stigmasterol (1), β-sitosterol (2), and α-terthienyl (3) were identified from A. aurantium, while 1, 2, lutein (4), centaurin (5), patuletin-7-β-O-glucoside (6), pendulin (7), and penduletin (8) were identified from A. integrifolium. From T. densiflora extract, allantoin (9), 9-O-angeloyl-retronecine (10), and its N-oxide (11) were identified. The present research is the first to report the effect of T. densiflora, A. integrifolium, and A. aurantium against N. aberrans and chemically characterized nematicidal extracts that may provide alternative sources of botanical nematicides.
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Affiliation(s)
- Raúl Velasco-Azorsa
- Instituto de Recursos, Universidad del Mar, Puerto Ángel, San Pedro Pochutla, Oaxaca 70902, Mexico;
| | - Héctor Cruz-Santiago
- Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Acatlima, Huajuapan de León, Oaxaca 69000, Mexico; (H.C.-S.); (N.F.S.-S.); (R.S.-C.); (C.V.-C.)
| | - Ignacio Cid del Prado-Vera
- Colegio de Postgraduados, km 36.5 Carretera México-Texcoco, Montecillos, Estado de Mexico, Texcoco 56230, Mexico;
| | - Marco Vinicio Ramirez-Mares
- Departamento de Ingeniería Química y Bioquímica, Tecnológico Nacional de México/I.T. Morelia, Av. Tecnológico 1500, Lomas de Santiaguito, Morelia 58120, Mexico;
| | | | - Norma Francenia Santos-Sánchez
- Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Acatlima, Huajuapan de León, Oaxaca 69000, Mexico; (H.C.-S.); (N.F.S.-S.); (R.S.-C.); (C.V.-C.)
| | - Raúl Salas-Coronado
- Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Acatlima, Huajuapan de León, Oaxaca 69000, Mexico; (H.C.-S.); (N.F.S.-S.); (R.S.-C.); (C.V.-C.)
| | - Claudia Villanueva-Cañongo
- Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Acatlima, Huajuapan de León, Oaxaca 69000, Mexico; (H.C.-S.); (N.F.S.-S.); (R.S.-C.); (C.V.-C.)
| | | | - Beatriz Hernández-Carlos
- Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Acatlima, Huajuapan de León, Oaxaca 69000, Mexico; (H.C.-S.); (N.F.S.-S.); (R.S.-C.); (C.V.-C.)
- Correspondence: ; Tel.: +52-9535320399
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8
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Tauseef A, Hisamuddin, Khalilullah A, Uddin I. Role of MgO nanoparticles in the suppression of Meloidogyne incognita, infecting cowpea and improvement in plant growth and physiology. Exp Parasitol 2020; 220:108045. [PMID: 33220261 DOI: 10.1016/j.exppara.2020.108045] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 09/24/2020] [Accepted: 11/15/2020] [Indexed: 01/09/2023]
Abstract
Root-knot disease, caused by Meloidogyne spp., alters histology as well as physiology of the roots thus influencing metabolism of vegetative and reproductive parts leading to huge losses in crop productivity. The experimental plant, Vigna unguiculata L. (cowpea of Fabaceae family) var. Gomti is an economically important pulse crop plant. An experiment was conducted to evaluate the effects of different concentrations (0, 25, 50 or 100 ppm) and various modes of applications (root dip, soil drench or foliar spray) of MgO nanoparticles on cowpea infected with M. incognita. The MgO nanoparticles were synthesized chemically and characterized by transmission and scanning electron microscopy (TEM, SEM), UV-Vis spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The scanning electron microscopy images of second stage juveniles of M. incognita treated with MgO nanoparticles (50 and 100 ppm) exhibited indentations, roughness and distortions in the cuticular surface, in comparison to the control untreated juveniles. MgO nanoparticles, in varying concentrations (50, 100 and 200 ppm), were dispensed into the plants by root dip, soil drench and foliar spray methods and their efficacy was assessed in terms of morphological characteristics, yield parameters and biochemical attributes of M. incognita infected plants. In planta trials revealed that 100 ppm dose of MgO nanoparticles, as root dip application, demonstrated reduced nematode fecundity, decreased number and smaller size of galls; enhanced plant growth, increased chlorophyll, carotenoid, seed protein, and root and shoot nitrogen contents. From these findings it could be inferred that MgO nanoparticles played twin roles, first as a nematicidal agent and the other as growth promotion inducer.
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Affiliation(s)
- Atirah Tauseef
- Department of Botany, Aligarh Muslim University (AMU), Aligarh, 202002, India
| | - Hisamuddin
- Department of Botany, Aligarh Muslim University (AMU), Aligarh, 202002, India
| | - Ahmad Khalilullah
- Interdisciplinary Nanotechnology Centre, Zakir Husain College of Engineering and Technology (ZHCET), Aligarh Muslim University (AMU), Aligarh, 202002, India
| | - Imran Uddin
- Interdisciplinary Nanotechnology Centre, Zakir Husain College of Engineering and Technology (ZHCET), Aligarh Muslim University (AMU), Aligarh, 202002, India.
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9
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Desmedt W, Mangelinckx S, Kyndt T, Vanholme B. A Phytochemical Perspective on Plant Defense Against Nematodes. FRONTIERS IN PLANT SCIENCE 2020; 11:602079. [PMID: 33281858 PMCID: PMC7691236 DOI: 10.3389/fpls.2020.602079] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/21/2020] [Indexed: 05/23/2023]
Abstract
Given the large yield losses attributed to plant-parasitic nematodes and the limited availability of sustainable control strategies, new plant-parasitic nematode control strategies are urgently needed. To defend themselves against nematode attack, plants possess sophisticated multi-layered immune systems. One element of plant immunity against nematodes is the production of small molecules with anti-nematode activity, either constitutively or after nematode infection. This review provides an overview of such metabolites that have been identified to date and groups them by chemical class (e.g., terpenoids, flavonoids, glucosinolates, etc.). Furthermore, this review discusses strategies that have been used to identify such metabolites and highlights the ways in which studying anti-nematode metabolites might be of use to agriculture and crop protection. Particular attention is given to emerging, high-throughput approaches for the identification of anti-nematode metabolites, in particular the use of untargeted metabolomics techniques based on nuclear magnetic resonance (NMR) and mass spectrometry (MS).
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Affiliation(s)
- Willem Desmedt
- Research Group Epigenetics and Defense, Department of Biotechnology, Ghent University, Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Sven Mangelinckx
- Research Group Synthesis, Bioresources and Bioorganic Chemistry (SynBioC), Department of Green Chemistry and Technology, Ghent University, Ghent, Belgium
| | - Tina Kyndt
- Research Group Epigenetics and Defense, Department of Biotechnology, Ghent University, Ghent, Belgium
| | - Bartel Vanholme
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
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10
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Scupinari T, Mannochio Russo H, Sabino Ferrari AB, da Silva Bolzani V, Dias WP, de Oliveira Nunes E, Hoffmann-Campo CB, Zeraik ML. Crotalaria spectabilis as a source of pyrrolizidine alkaloids and phenolic compounds: HPLC-MS/MS dereplication and monocrotaline quantification of seed and leaf extracts. PHYTOCHEMICAL ANALYSIS : PCA 2020; 31:747-755. [PMID: 32428987 DOI: 10.1002/pca.2938] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Crotalaria spectabilis is an important species used as a pre-plant cover for soybean crops to control the proliferation of endoparasitic nematodes. Species from the Crotalaria genus are known for presenting pyrrolizidine alkaloids (PAs) in their composition, however, C. spectabilis is still considered chemically under-explored. OBJECTIVE The goal of this manuscript is the development and validation of a method for PAs and flavonoids identification and quantification of C. spectabilis seeds and leaves, a toxic plant used for nematode proliferation control in soil, especially in soybean crops. MATERIALS AND METHODS Seeds and leaves extracts were analysed by high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) for the identification of the compounds. RESULTS PAs and phenolic compounds could be identified in both samples based on the MS/MS fragmentation pattern. Molecular formulas of the annotated compounds were confirmed by ultra-high-performace liquid chromatography-quadrupole time-of-flight (UHPLC-QToF), and monocrotaline could also be confirmed by standard comparison. The quantification of monocrotaline was performed by HPLC-MS/MS, resulting in 123 times higher monocrotaline content in seeds than in the leaves, which could explain its efficiency in combating nematode proliferation in soil. CONCLUSION This was the first report of phenolic compounds in C. spectabilis. The current study highlights the importance of C. spectabilis for nematode control due to the presence of toxic PAs, and the employment of analytical techniques for identification and quantification of compounds present in the extracts.
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Affiliation(s)
- Tamires Scupinari
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, PR, Brazil
| | - Helena Mannochio Russo
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Anna Beatriz Sabino Ferrari
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, PR, Brazil
| | - Vanderlan da Silva Bolzani
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Waldir Pereira Dias
- Brazilian Agricultural Research Corporation - Embrapa Soybean, Londrina, PR, Brazil
| | | | | | - Maria Luiza Zeraik
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, PR, Brazil
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Dubois O, Allanic C, Charvet CL, Guégnard F, Février H, Théry-Koné I, Cortet J, Koch C, Bouvier F, Fassier T, Marcon D, Magnin-Robert JB, Peineau N, Courtot E, Huau C, Meynadier A, Enguehard-Gueiffier C, Neveu C, Boudesocque-Delaye L, Sallé G. Lupin (Lupinus spp.) seeds exert anthelmintic activity associated with their alkaloid content. Sci Rep 2019; 9:9070. [PMID: 31227784 PMCID: PMC6588613 DOI: 10.1038/s41598-019-45654-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/12/2019] [Indexed: 12/20/2022] Open
Abstract
The growing range of drug resistant parasitic nematode populations threatens the sustainability of ruminant farming worldwide. In this context, nutraceuticals, animal feed that provides necessary dietary requirements while ensuring parasite control, could contribute to increase farming sustainability in developed and low resource settings. In this study, we evaluated the anthelmintic potential of lupin seed extracts against the major ruminant trichostrongylids, Haemonchus contortus and Teladorsagia circumcincta. In vitro observations showed that seed extracts from commercially available lupin varieties could significantly but moderately inhibit larval migration. This anthelmintic effect was mediated by the seed alkaloid content and was potent against both fully susceptible and multidrug resistant H. contortus isolates as well as a susceptible T. circumcincta isolate. Analytical chemistry revealed a set of four lupanine and sparteine-derivatives with anthelmintic activity, and electrophysiology assays on recombinant nematode acetylcholine receptors suggested an antagonistic mode of action for lupin alkaloids. An in vivo trial in H. contortus infected lupin-fed ewes and goats failed to demonstrate any direct anthelmintic effect of crude lupin seeds but infected lupin-fed goats suffered significantly less parasite-mediated blood losses. Altogether, our findings suggest that the anthelmintic potential of lupin remains limited. However, the potent alkaloids identified could lead to the development of novel drugs or may be used in combination with current anthelmintics to improve their efficacy.
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Affiliation(s)
- O Dubois
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France.,EA 7502 SIMBA, Université de Tours, Faculté de Pharmacie, F-37000, Tours, France
| | - C Allanic
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - C L Charvet
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - F Guégnard
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - H Février
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - I Théry-Koné
- EA 7502 SIMBA, Université de Tours, Faculté de Pharmacie, F-37000, Tours, France
| | - J Cortet
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - C Koch
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - F Bouvier
- UE332 La Sapinière, INRA, F-18174, Osmoy, France
| | - T Fassier
- UE332 La Sapinière, INRA, F-18174, Osmoy, France
| | - D Marcon
- UE332 La Sapinière, INRA, F-18174, Osmoy, France
| | - J B Magnin-Robert
- Agroécologie, AgroSup Dijon, INRA, Univ. Bourgogne, Univ. Bourgogne Franche-Comté, F-21000, Dijon, France
| | - N Peineau
- Département Physiologie Animale, Université de Tours, Faculté des Sciences et Techniques, F-37000, Tours, France
| | - E Courtot
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - C Huau
- GenPhySE, INRA, Université de Toulouse, INPT, ENVT, F-31326, Castanet-Tolosan, France
| | - A Meynadier
- GenPhySE, INRA, Université de Toulouse, INPT, ENVT, F-31326, Castanet-Tolosan, France
| | | | - C Neveu
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France
| | - L Boudesocque-Delaye
- EA 7502 SIMBA, Université de Tours, Faculté de Pharmacie, F-37000, Tours, France
| | - G Sallé
- UMR1282 Infectiologie et Santé Publique, INRA, Université de Tours, F-37380, Nouzilly, France.
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Arif IA, Ahamed A, Kumar RS, Idhayadhulla A, Manilal A. Cytotoxic, larvicidal, nematicidal, and antifeedant activities of piperidin-connected 2-thioxoimidazolidin-4-one derivatives. Saudi J Biol Sci 2019; 26:673-680. [PMID: 31048991 PMCID: PMC6486503 DOI: 10.1016/j.sjbs.2017.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/13/2017] [Accepted: 12/19/2017] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to investigate brine shrimp cytotoxicity, larvicidal, nematicidal, and antifeedant activities of novel piperidin-connected 2-thioxo-imidazolidin-4-one derivatives. The activities of target compounds were compared with some naturally occurring (-)-pinidinol, hydantocidin, and positive controls. Target compounds were synthesized via cyclocondensation method. The compounds were synthesized and then characterized by infrared spectroscopy, 1H NMR, 13C NMR, mass spectral, and elemental analyses. Brine shrimp cytotoxicity assay was investigated using freshly hatched, free-swimming nauplii of Artemiasalina. Larvicidal screening was performed against urban mosquito larvae (Culex quinquefasciatus). Nematicidal activity was evaluated using juvenile nematodes of Meloidogyne javanica. Regarding antifeedant activity, marine-acclimated Oreochromis mossambicus fingerlings were used. Compounds 3a-c (piperidin-connected 2-thioxoimidazolidin-4-one) were found to be lethal to the second instar larvae of mosquito, which produced LD50 values of 1.37, 6.66, 6.51 μg/mL, compared to compounds (-) pinidinol and hyantocidin LD50 values of 18.28 and 22.11 μg/mL respectively. Compound 3a-c was found to kill 100% of fish fingerlings within 6 h at 20 µg/mL, with LD50 values of 1.54, 1.79, 1.52 µg/mL, compared to compounds (-) pinidinol and hyantocidin with LD50 values of 10.21 and 21.05 μg/mL respectively. Compound 3c with LD50 value of 1.57 μg/mL demonstrated high nematicidal activity compared to compound 3a, 3b, (-) Pinidinol and Hyantocidin LD50 values of 6.45, 2.42, 14.25, 26.30 μg/mL respectively. Therefore, the 2-thioxoimidazolidin-4-one with piperidin ring showed high potential cytotoxic, larvicidal, nematicidal, and antifeedent activities.
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Affiliation(s)
- Ibrahim A. Arif
- Prince Sultan Research Chair for Environment and Wildlife, Department of Botany & Microbiology, College of Sciences, King Saud University (KSU), Riyadh, Saudi Arabia
| | - Anis Ahamed
- Prince Sultan Research Chair for Environment and Wildlife, Department of Botany & Microbiology, College of Sciences, King Saud University (KSU), Riyadh, Saudi Arabia
| | - Radhakrishnan Surendra Kumar
- Research Department of Chemistry, Nehru Memorial College (Affiliated to Bharathidasan University), Puthanampatti 621007, Tiruchirappalli District, Tamil Nadu, India
| | - Akbar Idhayadhulla
- Research Department of Chemistry, Nehru Memorial College (Affiliated to Bharathidasan University), Puthanampatti 621007, Tiruchirappalli District, Tamil Nadu, India
| | - Aseer Manilal
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, ArbaMinch University, Arba Minch, Ethiopia
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Sikder MM, Vestergård M. Impacts of Root Metabolites on Soil Nematodes. FRONTIERS IN PLANT SCIENCE 2019; 10:1792. [PMID: 32082349 PMCID: PMC7005220 DOI: 10.3389/fpls.2019.01792] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/23/2019] [Indexed: 05/20/2023]
Abstract
Plant parasitic nematodes cause significant crop damage globally. Currently, many nematicides have been banned or are being phased out in Europe and other parts of the world because of environmental and human health concerns. Therefore, we need to focus on sustainable and alternative methods of nematode control to protect crops. Plant roots contain and release a wide range of bioactive secondary metabolites, many of which are known defense compounds. Hence, profound understanding of the root mediated interactions between plants and plant parasitic nematodes may contribute to efficient control and management of pest nematodes. In this review, we have compiled literature that documents effects of root metabolites on plant parasitic nematodes. These chemical compounds act as either nematode attractants, repellents, hatching stimulants or inhibitors. We have summarized the few studies that describe how root metabolites regulate the expression of nematode genes. As non-herbivorous nematodes contribute to decomposition, nutrient mineralization, microbial community structuring and control of herbivorous insect larvae, we also review the impact of plant metabolites on these non-target organisms.
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Affiliation(s)
- Md Maniruzzaman Sikder
- Department of Agroecology, AU-Flakkebjerg, Aarhus University, Slagelse, Denmark
- Mycology and Plant Pathology, Department of Botany, Jahangirnagar University, Dhaka, Bangladesh
| | - Mette Vestergård
- Department of Agroecology, AU-Flakkebjerg, Aarhus University, Slagelse, Denmark
- *Correspondence: Mette Vestergård,
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Kirwa HK, Murungi LK, Beck JJ, Torto B. Elicitation of Differential Responses in the Root-Knot Nematode Meloidogyne incognita to Tomato Root Exudate Cytokinin, Flavonoids, and Alkaloids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:11291-11300. [PMID: 30346752 DOI: 10.1021/acs.jafc.8b05101] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Root exudates of plants mediate interactions with a variety of organisms in the rhizosphere, including root-knot nematodes (RKNs, Meloidogyne spp.) We investigated the responses of the motile stage second-stage juveniles (J2s) of Meloidogyne incognita to non-volatile components identified in the root exudate of tomato. Using stylet thrusting, chemotaxis assays, and chemical analysis, we identified specific metabolites in the root exudate that attract and repel J2s. Liquid chromatography quadrupole time-of-flight mass spectrometry analysis of bioactive fractions obtained from the root exudate revealed a high diversity of compounds, of which five were identified as the phytohormone zeatin (cytokinin), the flavonoids quercetin and luteolin, and alkaloids solasodine and tomatidine. In stylet thrusting and chemotaxis assays, the five compounds elicited concentration-dependent responses in J2s relative to 2% dimethyl sulfoxide (negative control) and methyl salicylate (positive control). These results indicate that J2 herbivory is influenced by root exudate chemistry and concentrations of specific compounds, which may have potential applications in RKN management.
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Affiliation(s)
- Hillary K Kirwa
- Behavioural and Chemical Ecology Unit , International Centre of Insect Physiology and Ecology (ICIPE) , Post Office Box 30772, 00100 Nairobi , Kenya
- Department of Horticulture , Jomo Kenyatta University of Agriculture and Technology , Post Office Box 62000, 00200 Nairobi , Kenya
| | - Lucy K Murungi
- Department of Horticulture , Jomo Kenyatta University of Agriculture and Technology , Post Office Box 62000, 00200 Nairobi , Kenya
| | - John J Beck
- Chemistry Research Unit, Center for Medical, Agricultural and Veterinary Entomology, Agricultural Research Service (ARS) , United States Department of Agriculture (USDA) , 1700 Southwest 23rd Drive , Gainesville , Florida 32608 , United States
| | - Baldwyn Torto
- Behavioural and Chemical Ecology Unit , International Centre of Insect Physiology and Ecology (ICIPE) , Post Office Box 30772, 00100 Nairobi , Kenya
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15
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Hill EM, Robinson LA, Abdul-Sada A, Vanbergen AJ, Hodge A, Hartley SE. Arbuscular Mycorrhizal Fungi and Plant Chemical Defence: Effects of Colonisation on Aboveground and Belowground Metabolomes. J Chem Ecol 2018; 44:198-208. [PMID: 29392532 PMCID: PMC5843688 DOI: 10.1007/s10886-017-0921-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/08/2017] [Accepted: 12/25/2017] [Indexed: 12/01/2022]
Abstract
Arbuscular mycorrhizal fungal (AMF) colonisation of plant roots is one of the most ancient and widespread interactions in ecology, yet the systemic consequences for plant secondary chemistry remain unclear. We performed the first metabolomic investigation into the impact of AMF colonisation by Rhizophagus irregularis on the chemical defences, spanning above- and below-ground tissues, in its host-plant ragwort (Senecio jacobaea). We used a non-targeted metabolomics approach to profile, and where possible identify, compounds induced by AMF colonisation in both roots and shoots. Metabolomics analyses revealed that 33 compounds were significantly increased in the root tissue of AMF colonised plants, including seven blumenols, plant-derived compounds known to be associated with AMF colonisation. One of these was a novel structure conjugated with a malonyl-sugar and uronic acid moiety, hitherto an unreported combination. Such structural modifications of blumenols could be significant for their previously reported functional roles associated with the establishment and maintenance of AM colonisation. Pyrrolizidine alkaloids (PAs), key anti-herbivore defence compounds in ragwort, dominated the metabolomic profiles of root and shoot extracts. Analyses of the metabolomic profiles revealed an increase in four PAs in roots (but not shoots) of AMF colonised plants, with the potential to protect colonised plants from below-ground organisms.
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Affiliation(s)
- Elizabeth M Hill
- School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK
| | - Lynne A Robinson
- School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK
- Centre for Ecology and Hydrology (CEH), Bush Estate, Penicuik, Midlothian, EH26 0QB, UK
| | - Ali Abdul-Sada
- School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK
| | - Adam J Vanbergen
- Centre for Ecology and Hydrology (CEH), Bush Estate, Penicuik, Midlothian, EH26 0QB, UK
| | - Angela Hodge
- Department of Biology, University of York, Wentworth Way, York, YO10 5DD, UK
| | - Sue E Hartley
- Department of Biology, University of York, Wentworth Way, York, YO10 5DD, UK.
- York Environment and Sustainability Institute, Department of Biology, University of York, Wentworth Way, York, YO10 5DD, UK.
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16
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Harkes P, Verhoeven A, Sterken MG, Snoek LB, van den Elsen SJJ, Mooijman PJW, Quist CW, Vervoort MTW, Helder J. The differential impact of a native and a non-native ragwort species (Senecioneae) on the first and second trophic level of the rhizosphere food web. OIKOS 2017. [DOI: 10.1111/oik.04530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Paula Harkes
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | - Ava Verhoeven
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | - Mark G. Sterken
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | - L. Basten Snoek
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
- NIOO-KNAW, Terrestrial Ecology; Wageningen the Netherlands
| | - Sven J. J. van den Elsen
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | | | - Casper W. Quist
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | - Mariëtte T. W. Vervoort
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
| | - Johannes Helder
- Laboratory of Nematology, Dept Plant Sciences, Wageningen Univ., Droevendaalsesteeg 1, NL-6708 PB; Wageningen the Netherlands
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Pan L, Li XZ, Sun DA, Jin H, Guo HR, Qin B. Design and synthesis of novel coumarin analogs and their nematicidal activity against five phytonematodes. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.01.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Letsyo E, Jerz G, Winterhalter P, Horn G, Beuerle T. Survey of pyrrolizidine alkaloids in seven varieties of Lappula squarrosa: An alternative source of heart-healthy vegetable oil. PHYTOCHEMICAL ANALYSIS : PCA 2016; 27:133-139. [PMID: 26895990 DOI: 10.1002/pca.2608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/27/2015] [Accepted: 12/05/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Growing demand for heart-healthy omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), is putting stress on wild fish stocks. There is now a compelling need for new and novel sources of non-traditional seed oils containing high stearidonic acid (SDA), a precursor of EPA and DHA, to reduce this demand. The seed oil of Lappula squarrosa is one of the richest sources of SDA, however, the plant has been found to contain toxic pyrrolizidine alkaloids (PAs). OBJECTIVE In this study, the PA concentrations of seven varieties (A-G) of Lappula squarrosa were analysed to determine the most suitable varieties for commercial seed oil production. METHODS Whilst the clean-up procedure for the PAs in the roots, flowers and leaves was on diatomaceous earth columns and finally analysed with GC-EI-MS, that of the seeds was through SCX-SPE and a more sensitive HPLC-ESI-MS/MS sum parameter method was used in the analysis. RESULTS Altogether six PAs (supinine, amabiline, intermedine, lycopsamine and 3'-acetylintermedine) including one unknown retronecine-type PA were identified with variety C recording the lowest total PA concentration (4.64 mg seneciphylline equivalents (SE)/g dry weight (d.w.)). Besides, the total PA concentrations in the seeds of Lappula squarrosa varieties ranged between 2.88 μg PA/g and 10.36 μg PA/g d.w. CONCLUSION Based solely on overall PA concentrations and PA distribution, variety D (5.95 mg SE/g d.w.) was found to be a potential candidate for commercial seed oil cultivation.
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Affiliation(s)
- Emmanuel Letsyo
- Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleinitzstrasse 20, 38106, Braunschweig, Germany
| | - Gerold Jerz
- Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleinitzstrasse 20, 38106, Braunschweig, Germany
| | - Peter Winterhalter
- Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleinitzstrasse 20, 38106, Braunschweig, Germany
| | - Gert Horn
- Exsemine GmbH, Am Wehr 4, 06198, Salzatal, Germany
| | - Till Beuerle
- Institut für Pharmazeutische Biologie, Technische Universität Braunschweig, Mendelssohnstrasse 1, 38106, Braunschweig, Germany
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Xu Y, Wu YG, Chen Y, Zhang JF, Song XQ, Zhu GP, Hu XW. Autotoxicity in Pogostemon cablin and their allelochemicals. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Wen Y, Meyer SLF, Masler EP, Zhang F, Liao J, Wei X, Chitwood DJ. Nematotoxicity of drupacine and a Cephalotaxus alkaloid preparation against the plant-parasitic nematodes Meloidogyne incognita and Bursaphelenchus xylophilus. PEST MANAGEMENT SCIENCE 2013; 69:1026-1033. [PMID: 23785026 DOI: 10.1002/ps.3548] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Revised: 03/14/2013] [Accepted: 04/05/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Species of Cephalotaxus (the plum yews) produce nematotoxic compounds of unknown identity. Consequently, bioassay-guided fractionation was employed to identify the compound(s) in Cephalotaxus fortunei twigs and leaves with activity against plant-parasitic nematodes. RESULTS A crude alkaloid extract, particularly drupacine, was responsible for much of the nematotoxicity. The ED50 of drupacine for Bursaphelenchus xylophilus was 27.1 µg mL⁻¹, and for Meloidogyne incognita it was 76.3 µg mL⁻¹. Immersion of M. incognita eggs in 1.0 mg mL⁻¹ crude alkaloid extract (the highest tested concentration) reduced hatch by 36%; immersion of second-stage juveniles (J2) resulted in 72-98% immobility. Crude alkaloid extract and drupacine suppressed protease activity in extracts of the microbivorous nematode Panagrellus redivivus by 50% and 80%, respectively. Application of 0.02-0.5 mg mL⁻¹ crude alkaloid extract to soil with M. incognita inoculum did not significantly reduce pepper plant shoot length or weight, compared with nematode-inoculated, water-treated controls, but the number of eggs and J2 per root system respectively decreased by 69% and 73% at 0.5 mg mL⁻¹. CONCLUSION Drupacine and a crude alkaloid extract suppress nematode hatch, activity of mixed life stages, and population numbers on plant roots. This is the first demonstration of nematotoxicity of crude Cephalotaxus alkaloids and drupacine.
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Affiliation(s)
- Yanhua Wen
- College of Natural Resources and Environment, South China Agricultural University, Tianhe District, Guangzhou City 510642, Guangdong Province, China
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Pyrrolizidine Alkaloid Composition Influences Cinnabar Moth Oviposition Preferences in Jacobaea Hybrids. J Chem Ecol 2013; 39:430-7. [DOI: 10.1007/s10886-013-0257-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 11/25/2012] [Accepted: 12/02/2012] [Indexed: 10/27/2022]
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Nematocidal Constituents from the Ethanol Extract ofEvodia rutaecarpaHort Unripe Fruits. J CHEM-NY 2013. [DOI: 10.1155/2013/939215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The ethanol extract of Chinese medicinal herb,Evodia rutaecarpaHort unripe fruits, was found to possess nematocidal activity against the root-knot nematodes,Meloidogyne incognita, during the screening program for new agrochemicals from local wild plants and Chinese medicinal herbs. Bioactivity-guided chromatographic separation of the ethanol extract ofE. rutaecarpaon repeated silica gel columns led to isolate five constituent components (two limonoids, evodol and limonin; three alkaloids, evodiamine, rutaecarpine, and wuchuyuamide I). Evodiamine (LC50=73.55 μg/mL) and rutaecarpine (LC50=120.85 μg/mL) exhibited stronger nematocidal activity againstM. incognitathan the crude ethanol extract ofE. rutaecarpa(LC50=131.54 μg/mL). Wuchuyuamide I, evodol, and limonin also possessed nematocidal activity againstM. incognitawith LC50values of 147.87 μg/mL, 155.02 μg/mL, and 197.37 μg/mL, respectively, but weaker than the crude ethanol extract ofE. rutaecarpa.
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Ntalli NG, Caboni P. Botanical nematicides: a review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:9929-9940. [PMID: 22973877 DOI: 10.1021/jf303107j] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Despite the uselfuness of nematicidal compounds in agricultural practices, some serious concerns are raised today about their excessive use leading to enhancement of biodegradation mechanisms in soil expressed as lack of efficacy under field conditions and resistance development. Moreover, the phase-out of methyl bromide has led to the need for a valid alternative to organophosporous and carbamate compounds, such us fosthiazate, fenamiphos, oxamyl, and aldicarb. In the past years, intregated pest management strategies have been practised worldwide to maximize crop production while maintaining and contributing to agriculture sustainability. Biopesticides and specifically bionematicides constitute a desirable component of pest management technology and practices. Particularly, in the frame of our ongoing research on natural nematicides of botanical origin, we have reviewed the international bibliography for candidate nematicidal compounds. We report herein the nematicidal activity of plant metabolites on the basis of their chemical characteristics and structure.
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Affiliation(s)
- Nikoletta G Ntalli
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly , Fytokou Street, 38446 Nea Ionia-Volos, Magnesia, Greece
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van de Voorde TF, Ruijten M, van der Putten WH, Bezemer TM. Can the negative plant–soil feedback of Jacobaea vulgaris be explained by autotoxicity? Basic Appl Ecol 2012. [DOI: 10.1016/j.baae.2012.08.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Analysis of alkaloids from different chemical groups by different liquid chromatography methods. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0037-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractAlkaloids are biologically active compounds widely used as pharmaceuticals and synthesised as secondary methabolites in plants. Many of these compounds are strongly toxic. Therefore, they are often subject of scientific interests and analysis. Since alkaloids — basic compounds appear in aqueous solutions as ionized and unionized forms, they are difficult for chromatographic separation for peak tailing, poor systems efficiency, poor separation and poor column-to-column reproducibility. For this reason it is necessity searching of more suitable chromatographic systems for analysis of the compounds. In this article we present an overview on the separation of selected alkaloids from different chemical groups by liquid chromatography thus indicating the range of useful methods now available for alkaloid analysis. Different selectivity, system efficiency and peaks shape may be achieved in different LC methods separations by use of alternative stationary phases: silica, alumina, chemically bonded stationary phases, cation exchange phases, or by varying nonaqueous or aqueous mobile phase (containing different modifier, different buffers at different pH, ion-pairing or silanol blocker reagents). Developments in TLC (NP and RP systems), HPLC (NP, RP, HILIC, ion-exchange) are presented and the advantages of each method for alkaloids analysis are discussed.
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Secondary Metabolites with Antinematodal Activity from Higher Plants. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2012. [DOI: 10.1016/b978-0-444-59514-0.00003-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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van de Voorde TFJ, van der Putten WH, Bezemer TM. The importance of plant-soil interactions, soil nutrients, and plant life history traits for the temporal dynamics of Jacobaea vulgaris in a chronosequence of old-fields. OIKOS 2011. [DOI: 10.1111/j.1600-0706.2011.19964.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cheng D, Kirk H, Vrieling K, Mulder PPJ, Klinkhamer PGL. The relationship between structurally different pyrrolizidine alkaloids and western flower thrips resistance in F(2) hybrids of Jacobaea vulgaris and Jacobaea aquatica. J Chem Ecol 2011; 37:1071-80. [PMID: 21969251 PMCID: PMC3197926 DOI: 10.1007/s10886-011-0021-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 09/16/2011] [Indexed: 11/26/2022]
Abstract
Segregating plant hybrids often have more ecological and molecular variability compared to parental species, and are therefore useful for studying relationships between different traits, and the adaptive significance of trait variation. Hybrid systems have been used to study the relationship between the expression of plant defense compounds and herbivore susceptibility. We conducted a western flower thrips (WFT) bioassay using a hybrid family and investigated the relationship between WFT resistance and pyrrolizidine alkaloid (PA) variation. The hybrid family consisted of two parental (Jacobaea vulgaris and Jacobaea aquatica) genotypes, two F1 genotypes, and 94 F2 hybrid lines. The J. aquatica genotype was more susceptible to thrips attack than the J. vulgaris genotype, the two F1 hybrids were as susceptible as J. aquatica, and susceptibility to WFT differed among F2 hybrid lines: 69 F2 lines were equally susceptible compared to J. aquatica, 10 F2 lines were more susceptible than J. aquatica and 15 F2 lines were as resistant as J. vulgaris or were intermediate to the two parental genotypes. Among 37 individual PAs that were derived from four structural groups (senecionine-, jacobine-, erucifoline- and otosenine-like PAs), the N-oxides of jacobine, jaconine, and jacoline were negatively correlated with feeding damage caused by WFT, and the tertiary amines of jacobine, jaconine, jacoline, and other PAs did not relate to feeding damage. Total PA concentration was negatively correlated with feeding damage. Among the four PA groups, only the total concentration of the jacobine-like PAs was negatively correlated with feeding damage. Multiple regression tests suggested that jacobine-like PAs play a greater role in WFT resistance than PAs from other structural groups. We found no evidence for synergistic effects of different PAs on WFT resistance. The relationship between PA variation and WFT feeding damage in the Jacobaea hybrids suggests a role for PAs in resistance to generalist insects.
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Affiliation(s)
- Dandan Cheng
- Plant Ecology & Phytochemistry, Institute of Biology, Leiden University, the Netherlands.
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Du SS, Zhang HM, Bai CQ, Wang CF, Liu QZ, Liu ZL, Wang YY, Deng ZW. Nematocidal flavone-C-glycosides against the root-knot nematode (Meloidogyne incognita) from Arisaema erubescens tubers. Molecules 2011; 16:5079-86. [PMID: 21694672 PMCID: PMC6264758 DOI: 10.3390/molecules16065079] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Revised: 06/07/2011] [Accepted: 06/15/2011] [Indexed: 11/24/2022] Open
Abstract
A screening of several Chinese medicinal herbs for nematicidal properties showed that Arisaema erubescens (Wall.) Schott tubers possessed significant nematicidal activity against the root-knot nematode (Meloidogyne incognita). From the ethanol extract, two nematicidal flavone-C-glycosides were isolated by bioassay-guided fractionation. The compounds were identified as schaftoside and isoschaftoside on the basis of their phytochemical and spectral data. Schaftoside and isoschaftoside possessed strong nematicidal activity against M. incognita (LC(50) = 114.66 μg/mL and 323.09 μg/mL, respectively) while the crude extract of A. erubescens exhibited nematicidal activity against the root-knot nematode with a LC(50) value of 258.11 μg/mL.
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Affiliation(s)
- Shu Shan Du
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
| | - Hai Ming Zhang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
| | - Chun Qi Bai
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China
| | - Cheng Fang Wang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
| | - Qi Zhi Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China
| | - Zhi Long Liu
- Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China
| | - Yong Yan Wang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China
| | - Zhi Wei Deng
- Analytical and Testing Center, Beijing Normal University, Beijing 100875, China
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