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Resumen
Verticillium dahliae is a soilborne pathogen that causes significant losses in olive crops in northwestern Argentina. Biological control through antagonistic microorganisms such as Trichoderma has great potential in the management of Verticillium wilt of olive. This investigation aims to isolate, identify and characterize native Trichoderma strains for biocontrol of V. dahliae. Thirty-nine Trichoderma strains were isolated from soils of olive orchards and
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dc.contributor.author | Carrasco, Franca Denise | |
dc.contributor.author | Miranda, Victoria | |
dc.contributor.author | Sede, Silvana M. | |
dc.contributor.author | Bustos, Sebastian | |
dc.contributor.author | González, Valeria | |
dc.contributor.author | Otero, Maria Laura | |
dc.contributor.author | Fracchia, Sebastián | |
dc.date.accessioned | 2024-03-20T10:40:20Z | |
dc.date.available | 2024-03-20T10:40:20Z | |
dc.date.issued | 2023-07-12 | |
dc.identifier.issn | 1532-4982 | |
dc.identifier.issn | 1532-4990 | |
dc.identifier.other | https://doi.org/10.1080/15324982.2023.2233933 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/17119 | |
dc.identifier.uri | https://www.tandfonline.com/doi/10.1080/15324982.2023.2233933 | |
dc.description.abstract | Verticillium dahliae is a soilborne pathogen that causes significant losses in olive crops in northwestern Argentina. Biological control through antagonistic microorganisms such as Trichoderma has great potential in the management of Verticillium wilt of olive. This investigation aims to isolate, identify and characterize native Trichoderma strains for biocontrol of V. dahliae. Thirty-nine Trichoderma strains were isolated from soils of olive orchards and natural areas and they were morphologically and molecularly characterized. Desired attributes for plant growth and bioprotection, such as indole acetic acid (IAA) production, endophytism and antagonistic potential against the pathogen were evaluated. Thirteen Trichoderma species were identified, belonging to the Trichoderma, Longibrachiatum, Virens, and Harzianum clades. Physiological characterization revealed that fourteen strains produced IAA while ten showed endophytic capacity. The antagonistic parameters quantified were very variable: eight strains showed high growth inhibition values (PI > 65%), while six strains reached mycoparasitism (PM) values higher than 90% for both pathogens. Three endophytic strains exhibited IAA production and antagonistic activity against V. dahliae, becoming potential candidates for bioprotection of olive orchards. Olive cultivation in the arid regions of northwestern Argentina is subjected to strong stress conditions mainly due to the type of soils with low organic matter content and water retention. Thus, selected Trichoderma strains with more than one beneficial attribute are a fundamental tool for sustainable olive cultivation, not only as antagonists of emerging pathogens but also as mitigators of abiotic stress conditions that prevail in these environments. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Taylor and Francis | es_AR |
dc.relation | info:eu-repograntAgreement/INTA/2019-PD-E4-I069-001, Bioprospección y caracterización de microorganismos benéficos para la protección y producción vegetal | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | es_AR |
dc.source | Arid Land Research and Management 38 (1) : 122-143 (2024) | es_AR |
dc.subject | Biological Control | eng |
dc.subject | Control Biológico | es_AR |
dc.subject | Semi-arid Zones | eng |
dc.subject | Zona Semiárida | es_AR |
dc.subject | Verticillium dahliae | es_AR |
dc.subject | Trichoderma | es_AR |
dc.subject | Olea europaea | |
dc.subject.other | Biocontrol | eng |
dc.subject.other | Olive Disease | eng |
dc.subject.other | Root Endophyte | eng |
dc.subject.other | Semiarid Arid Soils | eng |
dc.subject.other | Olivo | |
dc.title | Screening for native Trichoderma strains as potential biocontrollers of the olive pathogen Verticillium dahliae | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | es_AR |
dc.description.origen | Instituto de Patología Vegetal | es_AR |
dc.description.fil | Fil: Carrasco, Franca Denise. Instituto Nacional de Tecnologıa Agropecuaria (INTA).Estacion Experimental Agropecuaria Catamarca; Argentina | es_AR |
dc.description.fil | Fil: Miranda, Victoria. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de la Rioja (CRILAR).Consejo Nacional de Investigaciones Científicas y Técnicas- Gobierno de La Rioja. Universidad Nacional de Catamarca.Servicio Geológico Minero Argentino.Universidad Nacional de La Rioja; Argentina | es_AR |
dc.description.fil | Fil: Sede, Silvana M. Instituto de Bot anica Darwinion (IBODA). Academia Nacional de Ciencias Exactas, Físicas y Naturales (ANCEFN).Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Argentina | es_AR |
dc.description.fil | Fil: Bustos, Sebastian. Universidad Nacional de Catamarca (UNCa). Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: González, Valeria. Universidad Nacional de C ordoba (UNC). Facultad de Ciencias Agropecuarias (FCA); Argentina | es_AR |
dc.description.fil | Fil: Otero, Maria Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Otero, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFyMA); Argentina | es_AR |
dc.description.fil | Fil: Fracchia, Sebastián. Universidad de Buenos Aires. Facultas de Ciencias Exactas y Naturales. Instituto de Micologıa y Botanica (INMIBO); Argentina | es_AR |
dc.subtype | cientifico |
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