Evaluation of the effectiveness of potential biocontrol yeasts against black sur rot and ochratoxin A occurring under commercial greenhouse grape production conditions

Publication date: Available online 28 July 2016 Source:Biological Control Author(s): M.L. Ponsone, M.C. Nally, M.L. Chiotta, M. Combina, J. Köhl, S.N. Chulze The efficacy of two strains of Kluyveromyces thermotolerans in preventing the growth and ochratoxin A (OTA) accumulation of ochratoxigenic fungi under greenhouse and field conditions were evaluated during three consecutive year trial. The data from this study showed that both yeast strains were able to control Aspergillus section Nigri species growth and ochratoxin A accumulation in wine grapes at harvest stage. The inhibitory effects were dependent on the ochratoxigenic species, yeast strains, and year analyzed. Over all conditions assayed, ochratoxin A accumulation was reduced from 27% to 100%, depending on the conditions evaluated. These results are promising for future development of a bio-pesticide. Graphical abstract

Source: Biological Control - July 28, 2016 Category: Biology Source Type: research