Small scale fungal community differentiation in a vineyard system

Goddard, Matthew and Knight, Sarah and Karon, Ophir (2020) Small scale fungal community differentiation in a vineyard system. Food Microbiology (103358). ISSN 0740-0020

Full content URL: https://doi.org/10.1016/j.fm.2019.103358

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Small scale fungal community differentiation in a vineyard system
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Abstract

Microbes influence the quality of agricultural commodities and contribute to their distinctive sensorial attributes. Increasingly studies have demonstrated not only differential geographic patterns in microbial communities and populations, but that these contribute to valuable regionally distinct agricultural product identities, the most well-known example being wine. However, little is understood about microbial geographic patterns at scales of less than 100 km. For wine, single vineyards are the smallest (and most valuable) scale at which wine is asserted to differ; however, it is unknown whether microbes play any role in agricultural produce differentiation at this scale. Here we investigate whether vineyard fungal communities and yeast populations driving the spontaneous fermentation of fruit from these same vineyards are differentiated using metagenomics and population genetics. Significant differentiation of fungal communities was revealed between four Central Otago (New Zealand) Pinot Noir vineyard sites. However, there was no vineyard demarcation between fermenting populations of S. cerevisiae. Overall, this provides evidence that vineyard microbiomes potentially contribute to vineyard specific attributes in wine. Understanding the scale at which microbial communities are differentiated, and how these communities influence food product attributes has direct economic implications for industry and could inform sustainable management practices that maintain and enhance microbial diversity.

Keywords:Fungal biogeography, Saccharomyces cerevisiae, wine, terroir, Pinot Noir, metagenomics
Subjects:C Biological Sciences > C220 Mycology
C Biological Sciences > C150 Environmental Biology
C Biological Sciences > C510 Applied Microbiology
Divisions:College of Science > School of Life Sciences
ID Code:38235
Deposited On:04 Nov 2019 11:32

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