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Updated: Nov 6, 2025

Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products
Published on: December 5, 2020
Bioconversion of antifungal viridin to phytotoxin viridiol by environmental non-viridin producing microorganisms
Gilles-Alex Pakora1, Stéphane Mann2, Daouda Kone3
1Laboratoire Molécules de Communication et Adaptation des Micro-organismes (MCAM), Muséum national d'Histoire naturelle, CNRS; CP54, 57 Rue Cuvier, 75005 Paris, France; Laboratoire de Pharmacodynamie Biochimique, UFR Biosciences, Université Félix Houphouët Boigny d'Abidjan (UFHB), 22 BP 582 Abidjan 22, Cote d'Ivoire.
Abstract:
Biotransformation of viridin, an antifungal produced by biocontrol agent, with non-viridin producing microorganisms is studied. The results show that some environmental non-targeted microorganisms are able to reduce it in the known phytotoxin viridiol, and its 3-epimer. Consequently, this reduction, which happens in some cases by detoxification mechanism, could be disastrous for the plant in a biocontrol of plant disease. However, a process fermentation/biotransformation could be an efficient approach for the preparation of this phytotoxin.
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