Metabarcoding of fungal communities associated with Oregon Pinot Noir grapes to identify prevalent Hanseniaspora species

The apiculate yeast genus Hanseniaspora has been observed in association with grapes, grape must and the early stages of wine fermentation for more than 100 years. In this study we are determining which of the 22 recognized Hanseniaspora species are present on Pinot Noir grapes in Oregon's Willamette Valley American Viticultural Area and which species persist during cold-soaking of crushed grapes and into the early stages of fermentation.