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Hubert B, Marchi M, Ly Vu J, Tranchant C, Tarkowski ŁP, Leprince O, Buitink J. A method to determine antifungal activity in seed exudates by nephelometry. Plant Methods 2024; 20:16. [PMID: 38287427 PMCID: PMC10826049 DOI: 10.1186/s13007-024-01144-z] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/20/2024] [Indexed: 01/31/2024]
Abstract
BACKGROUND One of the levers towards alternative solutions to pesticides is to improve seed defenses against pathogens, but a better understanding is needed on the type and regulation of existing pathways during germination. Dormant seeds are able to defend themselves against microorganisms during cycles of rehydration and dehydration in the soil. During imbibition, seeds leak copious amounts of exudates. Here, we developed a nephelometry method to assay antimicrobial activity (AA) in tomato seed exudates as a proxy to assess level of defenses. RESULTS A protocol is described to determine the level of AA against the nonhost filamentous fungus Alternaria brassicicola in the exudates of tomato seeds and seedlings. The fungal and exudate concentrations can be adjusted to modulate the assay sensitivity, thereby providing a large window of AA detection. We established that AA in dormant seeds depends on the genotype. It ranged from very strong AA to complete absence of AA, even after prolonged imbibition. AA depends also on the stages of germination and seedling emergence. Exudates from germinated seeds and seedlings showed very strong AA, while those from dormant seeds exhibited less activity for the same imbibition time. The exudate AA did not impact the growth of a pathogenic fungus host of tomato, Alternaria alternata, illustrating the adaptation of this fungus to its host. CONCLUSIONS We demonstrate that our nephelometry method is a simple yet powerful bioassay to quantify AA in seed exudates. Different developmental stages from dormant seed to seedlings show different levels of AA in the exudate that vary between genotypes, highlighting a genetic diversity x developmental stage interaction in defense. These findings will be important to identify molecules in the exudates conferring antifungal properties and obtain a better understanding of the regulatory and biosynthetic pathways through the lifecycle of seeds, from dormant seeds until seedling emergence.
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Affiliation(s)
- Benjamin Hubert
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Muriel Marchi
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Joseph Ly Vu
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Camille Tranchant
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Łukasz P Tarkowski
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
- INRAE, Université de Strasbourg, UMR SVQV, Colmar, France
| | - Olivier Leprince
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France
| | - Julia Buitink
- Univ Angers, Institut Agro, INRAE, IRHS, SFR QUASAV, F-49000, Angers, France.
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Ahmed H, Kilinc SG, Celik F, Kesik HK, Simsek S, Ahmad KS, Afzal MS, Farrakh S, Safdar W, Pervaiz F, Liaqat S, Zhang J, Cao J. An Inventory of Anthelmintic Plants across the Globe. Pathogens 2023; 12:pathogens12010131. [PMID: 36678480 PMCID: PMC9866317 DOI: 10.3390/pathogens12010131] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 01/15/2023] Open
Abstract
A wide range of novelties and significant developments in the field of veterinary science to treat helminth parasites by using natural plant products have been assessed in recent years. To the best of our knowledge, to date, there has not been such a comprehensive review of 19 years of articles on the anthelmintic potential of plants against various types of helminths in different parts of the world. Therefore, the present study reviews the available information on a large number of medicinal plants and their pharmacological effects, which may facilitate the development of an effective management strategy against helminth parasites. An electronic search in four major databases (PubMed, Scopus, Web of Science, and Google Scholar) was performed for articles published between January 2003 and April 2022. Information about plant species, local name, family, distribution, plant tissue used, and target parasite species was tabulated. All relevant studies meeting the inclusion criteria were assessed, and 118 research articles were included. In total, 259 plant species were reviewed as a potential source of anthelmintic drugs. These plants can be used as a source of natural drugs to treat helminth infections in animals, and their use would potentially reduce economic losses and improve livestock production.
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Affiliation(s)
- Haroon Ahmed
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chakh Shazad, Islamabad 45550, Pakistan
| | - Seyma Gunyakti Kilinc
- Department of Parasitology, Faculty of Veterinary Medicine, Bingol University, Bingol 12000, Turkey
| | - Figen Celik
- Department of Parasitology, Faculty of Veterinary Medicine, University of Firat, Elazig 23119, Turkey
| | - Harun Kaya Kesik
- Department of Parasitology, Faculty of Veterinary Medicine, Bingol University, Bingol 12000, Turkey
| | - Sami Simsek
- Department of Parasitology, Faculty of Veterinary Medicine, University of Firat, Elazig 23119, Turkey
- Correspondence: (S.S.); (J.C.)
| | - Khawaja Shafique Ahmad
- Department of Botany, University of Poonch Rawalakot, Azad Jammu and Kashmir 12350, Pakistan
| | - Muhammad Sohail Afzal
- Department of Chemistry, University of Management & Technology (UMT), Lahore 54770, Pakistan
| | - Sumaira Farrakh
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chakh Shazad, Islamabad 45550, Pakistan
| | - Waseem Safdar
- Department of Biological Sciences, National University of Medical Sciences (NUMS), Rawalpindi 46000, Pakistan
| | - Fahad Pervaiz
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chakh Shazad, Islamabad 45550, Pakistan
| | - Sadia Liaqat
- Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Chakh Shazad, Islamabad 45550, Pakistan
| | - Jing Zhang
- The School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai 200240, China
| | - Jianping Cao
- The School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai 200240, China
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), Shanghai 200025, China
- Key Laboratory of Parasite and Vector Biology, National Health Commission of the People’s Republic of China, Shanghai 200025, China
- World Health Organization Collaborating Center for Tropical Diseases, Shanghai 200025, China
- Correspondence: (S.S.); (J.C.)
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Figueiredo YG, Corrêa EA, de Oliveira Junior AH, Mazzinghy ACDC, Mendonça HDOP, Lobo YJG, García YM, Gouvêia MADS, de Paula ACCFF, Augusti R, Reina LDCB, da Silveira CH, de Lima LHF, Melo JOF. Profile of Myracrodruon urundeuva Volatile Compounds Ease of Extraction and Biodegradability and In Silico Evaluation of Their Interactions with COX-1 and iNOS. Molecules 2022; 27:molecules27051633. [PMID: 35268733 PMCID: PMC8911712 DOI: 10.3390/molecules27051633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/21/2022] [Accepted: 02/22/2022] [Indexed: 12/11/2022]
Abstract
Myracrodruon urundeuva Fr. Allem. (Anacardiaceae) is a tree popularly known as the "aroeira-do-sertão", native to the caatinga and cerrado biomes, with a natural dispersion ranging from the Northeast, Midwest, to Southeast Brazil. Its wood is highly valued and overexploited, due to its characteristics such as durability and resistance to decaying. The diversity of chemical constituents in aroeira seed has shown biological properties against microorganisms and helminths. As such, this work aimed to identify the profile of volatile compounds present in aroeira seeds. Headspace solid phase microextraction was employed (HS-SPME) using semi-polar polydimethylsiloxane-divinylbenzene fiber (PDMS/DVB) for the extraction of VOCs. 22 volatile organic compounds were identified: nine monoterpenes and eight sesquiterpenes, in addition to six compounds belonging to different chemical classes such as fatty acids, terpenoids, salicylates and others. Those that stood out were p-mentha-1,4, 4(8)-diene, 3-carene (found in all samples), caryophyllene and cis-geranylacetone. A virtual docking analysis suggested that around 65% of the VOCs molar content from the aroeiras seeds present moderate a strong ability to bind to cyclooxygenase I (COX-I) active site, oxide nitric synthase (iNOS) active site (iNOSas) or to iNOS cofactor site (iNOScs), corroborating an anti-inflamatory potential. A pharmacophoric descriptor analysis allowed to infer the more determinant characteristics of these compounds' conferring affinity to each site. Taken together, our results illustrate the high applicability for the integrated use of SPME, in silico virtual screening and chemoinformatics tools at the profiling of the biotechnological and pharmaceutical potential of natural sources.
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Affiliation(s)
- Yuri G. Figueiredo
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Eduardo A. Corrêa
- Campus Dona Lindu, Universidade Federal de São João Del-Rei, Divinópolis 35501-296, MG, Brazil; (E.A.C.); (Y.J.G.L.)
- Empresa de Pesquisa Agropecuária de Minas Gerais, Unidade EPAMIG ITAC, Pitangui 35650-000, MG, Brazil
| | - Afonso H. de Oliveira Junior
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Ana C. d. C. Mazzinghy
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Henrique d. O. P. Mendonça
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Yan J. G. Lobo
- Campus Dona Lindu, Universidade Federal de São João Del-Rei, Divinópolis 35501-296, MG, Brazil; (E.A.C.); (Y.J.G.L.)
| | - Yesenia M. García
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Marcelo A. d. S. Gouvêia
- Departamento de Ciências Agrárias, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais, Campus Bambuí, Bambuí 38900-000, MG, Brazil; (M.A.d.S.G.); (A.C.C.F.F.d.P.)
| | - Ana C. C. F. F. de Paula
- Departamento de Ciências Agrárias, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais, Campus Bambuí, Bambuí 38900-000, MG, Brazil; (M.A.d.S.G.); (A.C.C.F.F.d.P.)
| | - Rodinei Augusti
- Departamento de Química, Campus Pampulha, Universidade Federal de Minas Gerais, Belo Horizonte 35702-031, MG, Brazil;
| | - Luisa D. C. B. Reina
- Instituto de Ciências Naturais, Humanas e Sociais, Universidade Federal de Minas Gerais, Belo Horizonte 35702-031, MG, Brazil;
| | - Carlos H. da Silveira
- Instituto de Ciências Tecnológicas, Campus Itabira, Universidade Federal de Itajubá, Itabira 35903-087, MG, Brazil;
| | - Leonardo H. F. de Lima
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
| | - Júlio O. F. Melo
- Departamento de Ciências Exatas e Biológicas, Campus Sete Lagoas, Universidade Federal de São João Del-Rei, Sete Lagoas 35700-000, MG, Brazil; (Y.G.F.); (A.H.d.O.J.); (A.C.d.C.M.); (H.d.O.P.M.); (Y.M.G.); (L.H.F.d.L.)
- Correspondence:
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Franco JRA, Paterno GB, Ganade G. The influence of herbaceous vegetation on the colonization of native and invasive trees: consequences for semiarid forest restoration. Restor Ecol 2021. [DOI: 10.1111/rec.13595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jeanne R. A. Franco
- Departamento de Ecologia, Centro de Biociências Universidade Federal do Rio Grande do Norte Natal RN Brazil
| | - Gustavo B. Paterno
- Departamento de Ecologia, Centro de Biociências Universidade Federal do Rio Grande do Norte Natal RN Brazil
- Biodiversity, Macroecology & Biogeography University of Göttingen Göttingen Germany
| | - Gislene Ganade
- Departamento de Ecologia, Centro de Biociências Universidade Federal do Rio Grande do Norte Natal RN Brazil
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Ferreira RB, Parreira MR, Nabout JC. The impact of global climate change on the number and replacement of provisioning ecosystem services of Brazilian Cerrado plants. Environ Monit Assess 2021; 193:731. [PMID: 34664119 DOI: 10.1007/s10661-021-09529-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/08/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
It is essential to predict areas of losses or exchanges of ecosystem services to adapt communities to the impacts caused by climate change. Particularly for provisioning ecosystem services provided by economically important plant species, understanding the association between climate change impacts and deforestation of native vegetation increases the accuracy of those predictions. Thus, we aim to (i) map the richness of provisioning ecosystem services from economically important native plants; (ii) use forecasts (present and future) of the distribution of ecosystem services to assess areas of changes in the number and type of provisioning ecosystems services. We evaluated provisioning ecosystem services from 110 Cerrado native species of economic importance for the local population. We determined the potential distribution of these plants using ecological niche modeling techniques, which were grouped according to the 21 different services provided. The forecasts for variation in richness and type of service used four future climate change scenarios (RCPs 4.5 and 8.5 in 2050 and 2070). The service losses detected in our models were associated with variables representing the progress of native vegetation deforestation in the biome due to agricultural expansion. Currently, ecosystem services can be found simultaneously in practically the entire biome. However, changes in the global climate will impact the potential geographic distribution of those plants, causing many areas in the biome to have reduced availability of potential ecosystem services. Moreover, due to the association between exposure to climate change and deforestation of native vegetation, the northern region of the biome will likely have the distribution of ecosystem services severely affected.
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Affiliation(s)
- Rafael Batista Ferreira
- Universidade Estadual de Goiás, Fazenda Barreiro Do Meio, Campus Central, BR 153, Anápolis, Goiás, 75132-400, Brazil
| | - Micael Rosa Parreira
- Universidade Federal de Goiás, Chácaras de Recreio Samambaia, Campus Samambaia, Av. Esperança, s/n, Goiânia, Goiás, 74690-900, Brazil
| | - João Carlos Nabout
- Universidade Estadual de Goiás, Fazenda Barreiro Do Meio, Campus Central, BR 153, Anápolis, Goiás, 75132-400, Brazil.
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Soares AMS, Alencar LMR, Dias LP, Lima RC, Rocha Silva C, Santos-Oliveira R, Oliveira JTA, Junior LMC, Souza PFN. New Insights into Anthelmintic Mechanisms of Action of a Synthetic Peptide: An Ultrastructural and Nanomechanical Approach. Polymers (Basel) 2021; 13:2370. [PMID: 34301127 DOI: 10.3390/polym13142370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/07/2021] [Accepted: 07/15/2021] [Indexed: 11/18/2022] Open
Abstract
Resistant nematodes are not affected by the most common drugs commercially available. In the search for new anthelmintics, peptides have been investigated. Here, a linear synthetic peptide named RcAlb-PepIII bioinspired from the antimicrobial protein Rc-2S-Alb was designed, synthesized, and tested against barber pole worm Haemonchus contortus. The physicochemical properties of the peptide, the 3D structure model, the egg hatch inhibition, and larval development inhibition of H. contortus were carried out. Additionally, the ultrastructure of the nematode after treatment with the peptide was evaluated by atomic force microscopy. The RcAlb-PepIII inhibited the larval development of H. contortus with an EC50 of 90 µM and did not affect egg hatch. Atomic force microscopy reveals the high affinity of RcAlb-PepIII with the cuticle of H. contortus in the L2 stage. It also shows the deposition of RcAlb-PepIII onto the surface of the cuticle, forming a structure similar to a film that reduces the roughness and mean square roughness (Rq) of it. In conclusion, the bioinspired RcAlb-PepIII has the potential to be used as a new anthelmintic compound to control gastrointestinal nematode parasites.
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Ali R, Rooman M, Mussarat S, Norin S, Ali S, Adnan M, Khan SN. A Systematic Review on Comparative Analysis, Toxicology, and Pharmacology of Medicinal Plants Against Haemonchus contortus. Front Pharmacol 2021; 12:644027. [PMID: 34040520 PMCID: PMC8141741 DOI: 10.3389/fphar.2021.644027] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 03/26/2021] [Indexed: 12/19/2022] Open
Abstract
Background:Haemonchus contortus is an important pathogenic nematode parasite and major economic constraint of small ruminants in tropics and subtropics regions. This review is an attempt to systematically address the; (a) efficacy of different plants against H. contortus by in vitro and in vivo proof; (b) toxicology, mechanism of action, and active phyto-compounds involve in anti-haemonchiasis activity; (c) and comparative analysis of plant species evaluated both in vitro and in vivo. Methods: Online databases (Google Scholar, PubMed, Scopus, and ScienceDirect) were searched and published research articles (1980–2020) were gathered and reviewed. Results: A total of 187 plant species were reported belonging to 59 families and 145 genera with Asteraceae and Fabaceae being frequently used. Out of the total plant species, 171 species were found to be evaluated in vitro and only 40 species in vivo. Twenty-four species were commonly evaluated for in vitro and in vivo anti-haemonchiasis activity. Among the reported assays, egg hatching test (EHT) and fecal egg count reduction (FECR) were the most widely used assays in vitro and in vivo, respectively. Moreover, sheep were the frequently used experimental model in vivo. After comparative analysis, Lachesiodendron viridiflorum, Corymbia citriodora, Calotropis procera, and Artemisia herba-alba were found highly effective both in vitro and in vivo. L. viridiflorum inhibited enzymatic activities and metabolic processes of the parasite and was found to be safe without toxic effects. C. citriodora was moderately toxic in vivo, however, the plant extract produced promising nematicidal effects by causing muscular disorganization and changes in the mitochondrial profile. Additionally, C. procera and A. herba-alba despite of their high anti-haemonchiasis activity were found to be highly toxic at the tested concentrations. C. procera caused perforation and tegumental disorganization along with adult worm paralysis. Nineteen compounds were reported, among which anethole and carvone completely inhibited egg hatching in vitro and significantly reduced fecal egg count, decreased male length, and reproductive capacity of female in vivo. Conclusion: This review summarized different medicinal plants owing to nematicidal activities against H. contortus eggs, larvae, and adult worms. Plants like L. viridiflorum, C. citriodora, C. procera, and A. herba-alba, while compounds anethole and carvone having promising nematicidal activities and could be an alternative source for developing novel drugs after further investigation.
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Affiliation(s)
- Rehman Ali
- Department of Zoology, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Muhammad Rooman
- Department of Zoology, Hazara University Mansehra, Kohat, Pakistan
| | - Sakina Mussarat
- Department of Botanical and Environmental Sciences, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Sadia Norin
- Department of Zoology, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Shandana Ali
- Department of Zoology, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Muhammad Adnan
- Department of Botanical and Environmental Sciences, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Shahid Niaz Khan
- Department of Zoology, Faculty of Biological Sciences, Kohat University of Science and Technology, Kohat, Pakistan
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Licá ICL, Soares AMS, Ferreira ATS, Perales J, Cunha IAL, Souza PFN, Costa-Júnior LM. In vitro assessment of the efficacy of protein exudates from seeds against Haemonchus contortus. Vet Parasitol 2021; 292:109399. [PMID: 33711619 DOI: 10.1016/j.vetpar.2021.109399] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 10/22/2022]
Abstract
Nematodes develop resistance to the most common commercially available drugs. The aim of this study was to identify and evaluate the action of protein exudates from Mimosa caesalpiniifolia, Leucaena leucocephala, Acacia mangium, and Stylosanthes capitata seeds on the gastrointestinal nematode Haemonchus contortus. The exuded proteins were precipitated, dialyzed, lyophilized, and assessed for their effect on egg hatching and artificial larval exsheathment inhibition. Proteome analysis of the protein extracts was also performed. Although no egg-hatching inhibition was observed, all exudates showed efficacy in inhibiting the larval exsheathment of H. contortus larvae with an EC50 varying from 0.61 to 0.26 mg P mL-1. Proteomic analysis revealed the presence of proteases, protease inhibitors, chitinases, and lectins among other proteins in the exudates. Most of the exuded proteins belong to the oxidative stress/plant defense and energy/carbohydrate metabolism functional clusters. This study concluded that the bioactive proteins from different classes exuded by seeds of M. caesalpiniifolia, L. leucocephala, A. mangium, and S. capitata show stage-specific inhibition against H. contortus.
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Affiliation(s)
- Irlla Correia Lima Licá
- Postgraduate Program in Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil; Laboratory of Plant Biochemistry, Federal University of Maranhão, São Luís, MA, Brazil
| | - Alexandra Martins Santos Soares
- Postgraduate Program in Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil; Laboratory of Plant Biochemistry, Federal University of Maranhão, São Luís, MA, Brazil.
| | | | - Jonas Perales
- Laboratory of Toxinology, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | | | - Livio Martins Costa-Júnior
- Postgraduate Program in Health Sciences, Federal University of Maranhão, São Luís, MA, Brazil; Laboratory of Parasite Control, Federal University of Maranhão, São Luís, MA, Brazil.
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Ribeiro HS, Soares AMS, de Jesus Castro Brito D, Oliveira JTA, Costa-Junior LM. Inhibition of Protease and Egg Hatching of Haemonchus contortus by Soybean Seed Exudates. J Parasitol 2021; 107:23-28. [PMID: 33498082 DOI: 10.1645/19-47] [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: 11/10/2022] Open
Abstract
Gastrointestinal nematode infection of small ruminants causes losses in livestock production. Plant compounds show promises as alternatives to commercial anthelmintics that have been exerting selective pressures that lead to the development of drug-resistant parasites. Soybean (Glycine max) is an economical value crop, with a higher protein content compared to other legumes. The objective of this study was to evaluate whether the protease inhibitors exuded from the G. max mature seeds have anthelmintic activity against Haemonchus contortus. To obtain the soybean exudates (SEX), mature seeds were immersed in 100 mM sodium acetate buffer, pH 5.0, at 10 C, for 24 hr. Then the naturally released substances present in SEX were collected and exhaustively dialyzed (cutoff 12 kDa) against distilled water. The dialyzed seed exudates (SEXD) were heated at 100 C for 10 min and centrifuged (12,000 g, at 4 C for 15 min). The supernatant obtained was recovered and designated as the heat-treated exudate fraction (SEXDH). The protein content, protease inhibitor activity, and the effect of each fraction on H. contortus egg hatch rate were evaluated. The inhibition extent of SEX, SEXD, and SEXDH on H. contortus egg proteases was 31.1, 42.9, and 63.8%, respectively. Moreover, SEX, SEXD, and SEXDH inhibited the egg hatching with EC50 of 0.175, 0.175, and 0.241 mg ml-1, respectively. Among the commercial protease inhibitors tested, only EDTA and E-64 inhibited the H. contortus hatch rate (79.0 and 28.9%, respectively). We present evidence demonstrating that soybean exudate proteins can effectively inhibit H. contortus egg hatching. This bioactivity is displayed by thermostable proteins and provides evidence that protease inhibitors are a potential candidate for anthelmintic use.
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Affiliation(s)
- Helen Silva Ribeiro
- Laboratory of Plant Biochemistry, Center for Exact Sciences and Technology, Federal University of Maranhao, Sao Luis, MA, 65080-805, Brazil
| | - Alexandra Martins Santos Soares
- Laboratory of Plant Biochemistry, Center for Exact Sciences and Technology, Federal University of Maranhao, Sao Luis, MA, 65080-805, Brazil
| | - Daniella de Jesus Castro Brito
- Laboratory of Plant Biochemistry, Center for Exact Sciences and Technology, Federal University of Maranhao, Sao Luis, MA, 65080-805, Brazil
| | - José Tadeu A Oliveira
- Laboratory of Plant Defense Proteins, Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, 60440-900, Brazil
| | - Lívio Martins Costa-Junior
- Laboratory of Parasite Control, Center for Biological and Health Sciences, Federal University of Maranhao, Sao Luis, MA, 65080-805, Brazil
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Sousa AJ, Souza PF, Gifoni JM, Dias LP, Freitas CD, Oliveira JT, Sousa DO, Vasconcelos IM. Scanning electron microscopy reveals deleterious effects of Moringa oleifera seed exuded proteins on root-knot nematode Meloidogyne incognita eggs. Int J Biol Macromol 2020; 154:1237-1244. [DOI: 10.1016/j.ijbiomac.2019.10.278] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/21/2019] [Accepted: 10/31/2019] [Indexed: 12/21/2022]
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Houlihan AJ, Conlin P, Chee-Sanford JC. Water-soluble exudates from seeds of Kochia scoparia exhibit antifungal activity against Colletotrichum graminicola. PLoS One 2019; 14:e0218104. [PMID: 31216294 PMCID: PMC6584005 DOI: 10.1371/journal.pone.0218104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 05/25/2019] [Indexed: 01/26/2023] Open
Abstract
Plant seed exudates are composed of complex mixtures of chemicals with potential for bioactive compounds with antimicrobial properties. This study focused on kochia (Kochia scoparia), one of many weedy plant species considered invasive in many agricultural systems. Extraction of compounds in water yielded an exudate mass equivalent to 7% of the original seed mass used. Water-soluble exudates were tested against 16 known plant pathogens in disk diffusion assays and kochia exudates were found to inhibit Colletotrichum graminicola, the fungal causative agent of anthracnose and stalk rot in maize. The narrow range of fungi found as targets suggested the mechanism of inhibition may be specific rather than broadly antifungal. A decline in viability of cells over four orders of magnitude occurred within six hours of exposure to exudate. The minimum inhibitory concentration was 3.125 mg L-1. Hyphae formation in C. graminicola appeared inhibited following exposure to the exudate. Small molecular weight compounds as determined by GC/MS analysis showed high relative amounts of the sugars fructose, galactopyranose, glucose, and sorbitol, along with moderate proportions of organic acids and amino acids. Protein content averaged 0.7% in the standard concentration (100 mg mL-1) used for inhibition assays. Size fractionation of the exudate and subsequent disk diffusion assays revealed bioactive fractions with compounds in the MW range <5 kDa. To the best of our knowledge, this study is the first to show promising bioactivity against C. graminicola that was associated with water-extractable compounds from a common weed species. The results suggest that seeds of persistent plant species with long-lived seed banks like kochia may have potential for use in the discovery of compounds active in inhibiting fungal pathogens.
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Affiliation(s)
- Adam J. Houlihan
- USDA/ARS, Urbana, IL, United States of America
- Department of Crop Sciences, University of Illinois, Urbana, IL, United States of America
| | - Peter Conlin
- Department of Crop Sciences, University of Illinois, Urbana, IL, United States of America
| | - Joanne C. Chee-Sanford
- USDA/ARS, Urbana, IL, United States of America
- Department of Crop Sciences, University of Illinois, Urbana, IL, United States of America
- Department of Natural Resources & Environmental Sciences, University of Illinois, Urbana, IL, United States of America
- * E-mail:
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