Tolerance to chitosan by Trichoderma species is associated with low membrane fluidity
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Título: | Tolerance to chitosan by Trichoderma species is associated with low membrane fluidity |
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Autor/es: | Zavala-González, Ernesto A. | Lopez-Moya, Federico | Aranda-Martínez, Almudena | Cruz-Valerio, Mayra | Lopez-Llorca, Luis Vicente | Ramírez-Lepe, Mario |
Grupo/s de investigación o GITE: | Fitopatología |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada | Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef" |
Palabras clave: | Chitosan | Free fatty acids | Plasma membrane | Trichoderma |
Área/s de conocimiento: | Botánica |
Fecha de publicación: | jul-2016 |
Editor: | Wiley-VCH Verlag GmbH & Co. KGaA |
Cita bibliográfica: | Journal of Basic Microbiology. 2016, 56(7): 792-800. doi:10.1002/jobm.201500758 |
Resumen: | The effect of chitosan on growth of Trichoderma spp., a cosmopolitan genus widely exploited for their biocontrol properties was evaluated. Based on genotypic (ITS of 18S rDNA) characters, four isolates of Trichoderma were identified as T. pseudokoningii FLM16, T. citrinoviride FLM17, T. harzianum EZG47, and T. koningiopsis VSL185. Chitosan reduces radial growth of Trichoderma isolates in concentration-wise manner. T. koningiopsis VSL185 was the most chitosan tolerant isolate in all culture media amended with chitosan (0.5–2.0 mg ml−1). Minimal Inhibitory Concentration (MIC) and Minimal Fungicidal Concentration (MFC) were determined showing that T. koningiopsis VSL185 displays higher chitosan tolerance with MIC value >2000 μg ml−1 while for other Trichoderma isolates MIC values were around 10 μg ml−1. Finally, free fatty acid composition reveals that T. koningiopsis VSL185, chitosan tolerant isolate, displays lower linolenic acid (C18:3) content than chitosan sensitive Trichoderma isolates. Our findings suggest that low membrane fluidity is associated with chitosan tolerance in Trichoderma spp. |
Patrocinador/es: | This research was funded by the Spanish Ministry of Science and Innovation Grants AGL2015-66833-R. |
URI: | http://hdl.handle.net/10045/62629 |
ISSN: | 0233-111X (Print) | 1521-4028 (Online) |
DOI: | 10.1002/jobm.201500758 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2016 WILEY-VCH Verlag GmbH & Co.KGaA,Weinheim |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1002/jobm.201500758 |
Aparece en las colecciones: | INV - Fitopatología - Artículos de Revistas |
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2016_Zavala_etal_JBasicMicrobiol_final.pdf | Versión final (acceso restringido) | 2,58 MB | Adobe PDF | Abrir Solicitar una copia |
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