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Phytophthora Root Rot Modifies the Composition of the Avocado Rhizosphere Microbiome and Increases the Abundance of Opportunistic Fungal Pathogens.
Solís-García, Itzel A; Ceballos-Luna, Oscar; Cortazar-Murillo, Elvis Marian; Desgarennes, Damaris; Garay-Serrano, Edith; Patiño-Conde, Violeta; Guevara-Avendaño, Edgar; Méndez-Bravo, Alfonso; Reverchon, Frédérique.
Afiliación
  • Solís-García IA; Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Xalapa, Mexico.
  • Ceballos-Luna O; Escuela Nacional de Estudios Superiores Unidad Morelia, Laboratorio Nacional de Análisis y Síntesis Ecológica, Universidad Nacional Autónoma de México, Morelia, Mexico.
  • Cortazar-Murillo EM; Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Xalapa, Mexico.
  • Desgarennes D; Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Xalapa, Mexico.
  • Garay-Serrano E; Red de Biodiversidad y Sistemática, Instituto de Ecología, A.C., Xalapa, Mexico.
  • Patiño-Conde V; CONACYT - Red de Diversidad Biológica del Occidente Mexicano, Instituto de Ecología, A.C., Pátzcuaro, Mexico.
  • Guevara-Avendaño E; Escuela Nacional de Estudios Superiores Unidad Morelia, Laboratorio Nacional de Análisis y Síntesis Ecológica, Universidad Nacional Autónoma de México, Morelia, Mexico.
  • Méndez-Bravo A; Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C., Xalapa, Mexico.
  • Reverchon F; Instituto de Agroindustrias, Universidad Tecnológica de la Mixteca, Heroica Ciudad de Huajuapan de Leon, Mexico.
Front Microbiol ; 11: 574110, 2020.
Article en En | MEDLINE | ID: mdl-33510714
The structure and function of rhizosphere microbial communities are affected by the plant health status. In this study, we investigated the effect of root rot on the avocado rhizosphere microbiome, using 16S rDNA and ITS sequencing. Furthermore, we isolated potential fungal pathogens associated with root rot symptoms and assessed their pathogenic activity on avocado. We found that root rot did not affect species richness, diversity or community structure, but induced changes in the relative abundance of several microbial taxa. Root rot increased the proportion of Pseudomonadales and Burkholderiales in the rhizosphere but reduced that of Actinobacteria, Bacillus spp. and Rhizobiales. An increase in putative opportunistic fungal pathogens was also detected in the roots of symptomatic trees; the potential pathogenicity of Mortierella sp., Fusarium spp., Lasiodiplodia sp. and Scytalidium sp., is reported for the first time for the State of Veracruz, Mexico. Root rot also potentially modified the predicted functions carried out by rhizobacteria, reducing the proportion of categories linked with the lipid and amino-acid metabolisms whilst promoting those associated with quorum sensing, virulence, and antibiotic resistance. Altogether, our results could help identifying microbial taxa associated to the disease causal agents and direct the selection of plant growth-promoting bacteria for the development of biocontrol microbial consortia.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Aspecto: Patient_preference Idioma: En Revista: Front Microbiol Año: 2020 Tipo del documento: Article País de afiliación: México Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Aspecto: Patient_preference Idioma: En Revista: Front Microbiol Año: 2020 Tipo del documento: Article País de afiliación: México Pais de publicación: Suiza