Biocontrol of fungi isolated from sour rot infected table grapes by Saccharomyces and other yeast species

Authors
Nally, María Cristina; Pesce, Virginia Mercedes; Maturano, Yolanda Paola; Toro, María Eugenia; Combina, Mariana; Castellanos de Figueroa, Lucía Inés; Vazquez, Fabio
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Sour rot is an important disease of grapes caused by an etiologic complex of microorganisms in which filamentous fungi play a key role. Yeasts are used for biocontrol of pathogenic filamentous fungi on fruits. The major objective of this study was to assess in vivo on detached berries the effect of viticultural yeasts on phytopathogenic fungi involved in grape sour rot. Yeasts that were found to be effective in vivo againstthe fungi were assayed for their possible pathogenicity in humans: growth at 42 ◦C, pseudohyphal formation, adhesion, and phospholipase and protease activity.Atotal of 234 yeasts belonging to 14 genera were assayed against the following pathogens: Aspergillus caelatus, Aspergillus carbonarius, Aspergillus terreus, Aspergillus versicolor, Fusarium oxysporum, Penicillium comune, Rhizopus stolonifer and Ulocladium sp. Forty-three (16 Saccharomyces and 27 non-Saccharomyces) showed antagonistic properties against some of the fungi assayed in grapes at 25 ◦C. Yeast isolates determined as biocontrol agents under in vivo conditions were isolated from fermenting musts (35), viticultural soils (6) and grape berries (2). Twenty biocontrol agents did not show phenotypical characteristics associated with pathogenicity in humans
Fil: Nally, María Cristina. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina
Fil: Pesce, V.M. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina
Fil: Maturano, Yolanda Paola. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina
Fil: Toro, María Eugenia. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina
Fil: Combina, Mariana. INTA. Estación Experimental Agropecuaria Mendoza. Centro de Estudios Enológicos; Argentina
Fil: Castellanos de Figueroa, Lucía Inés. Planta Piloto de Procesos Industriales Microbiológicos; Argentina. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina
Fil: Vazquez, Fabio. Universidad Nacional de San Juan. Facultad de Ingeniería. Instituto de Biotecnología; Argentina
Source
Postharvest biology and technology 86 : 456-462. (Dec. 2013)
Subject
Uvas de Mesa
Dessert Grapes
Biological Control
Pathogenicity
Pathogenic Fungi
Aspergillus
Fusarium
Penicillium
Rhizopus
Saccharomyces
Levadura
Yeasts
Control Biológico
Patogenicidad
Hongos Patógenos
Ulocladium
Sour Rot
Access level
Restricted access
License
Repository
INTA Digital (INTA)
Institution
Instituto Nacional de Tecnología Agropecuaria
OAI Identifier
oai:localhost:20.500.12123/1422