The Global Secondary Metabolite Regulator <i>AcLaeA</i> Modulates <i>Aspergillus carbonarius</i> Virulence, Ochratoxin Biosynthesis, and the Mode of Action of Biopesticides and Essential Oils.

ABSTRACT: Aspergillus carbonarius is considered one of the main fungi responsible for black and sour rot in grapes, as well as the production of the carcinogenic mycotoxin ochratoxin A. The global regulatory methyltransferase protein LaeA controls the production of various secondary metabolites in Aspergillus species, as well as influences sexual and asexual reproduction and morphology. The goal of this study was to investigate the role of the regulatory gene AclaeA in physiology, virulence, and ochratoxin A (OTA) production by deleting this gene from the genome of a wild-type A. carbonarius strain. The evaluation data on the morphological characteristics, virulence experiments in three different grape varieties, and OTA analysis of ΔAclaeA mutants showed th

SUBMITTER: Iliadi MK 

PROVIDER: S-EPMC11768970 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature