Biocontrol yeasts: mechanisms and applications

Yeasts occur in all environments and have been described as potent antagonists of various plant pathogens. Due to their antagonistic ability, undemanding cultivation requirements, and limited biosafety concerns, many of these unicellular fungi have been considered for biocontrol applications. Here,...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2019-10, Vol.35 (10), p.154-154, Article 154
Main Authors: Freimoser, Florian M., Rueda-Mejia, Maria Paula, Tilocca, Bruno, Migheli, Quirico
Format: Article
Language:English
Subjects:
antagonists
Applied Microbiology
Aureobasidium pullulans
Baking yeast
Biochemistry
Biological control
Biomedical and Life Sciences
Biosafety
Biotechnology
Candida oleophila
Cryptococcus albidus
Cultivation
Environmental Engineering/Biotechnology
Fungi
induced resistance
Life Sciences
Metschnikowia fructicola
Microbiology
mycoparasites
plant pathogens
Plant protection
Review
Saccharomyces cerevisiae
Secretion
Toxins
Volatiles
Yeast
Yeasts
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Summary:Yeasts occur in all environments and have been described as potent antagonists of various plant pathogens. Due to their antagonistic ability, undemanding cultivation requirements, and limited biosafety concerns, many of these unicellular fungi have been considered for biocontrol applications. Here, we review the fundamental research on the mechanisms (e.g., competition, enzyme secretion, toxin production, volatiles, mycoparasitism, induction of resistance) by which biocontrol yeasts exert their activity as plant protection agents. In a second part, we focus on five yeast species ( Candida oleophila, Aureobasidium pullulans, Metschnikowia fructicola, Cryptococcus albidus, Saccharomyces cerevisiae ) that are or have been registered for the application as biocontrol products. These examples demonstrate the potential of yeasts for commercial biocontrol usage, but this review also highlights the scarcity of fundamental studies on yeast biocontrol mechanisms and of registered yeast-based biocontrol products. Yeast biocontrol mechanisms thus represent a largely unexplored field of research and plentiful opportunities for the development of commercial, yeast-based applications for plant protection exist.
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-019-2728-4