Journal
ENVIRONMENTAL MICROBIOLOGY
Volume 23, Issue 4, Pages 1842-1857Publisher
WILEY
DOI: 10.1111/1462-2920.15172
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Funding
- Wine Australia [AGW Ph1602]
- Melbourne Research Scholarship from the University of Melbourne
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The study investigates the impact of microbial ecology on grapevine health and productivity in wine production, as well as the dynamics of fungi in the vineyard ecosystem at different stages. Fungi are influenced by grapevine habitat and plant development stage, with core microbiome playing a crucial role in seasonal community succession.
Microbial ecology and activity in wine production influences grapevine health and productivity, conversion of sugar to ethanol during fermentation, wine aroma, wine quality and distinctiveness. Fungi in the vineyard ecosystem are not well described. Here, we characterized the spatial and temporal dynamics of fungal communities associated with the grapevine (grapes, flowers, leaves, and roots) and soils over an annual growth cycle in two vineyards to investigate the influences of grape habitat, plant developmental stage (flowering, fruit set, veraison, and harvest), vineyards, and climatic conditions. Fungi were influenced by both the grapevine habitat and plant development stage. The core microbiome was prioritized over space and time, and the identified core members drove seasonal community succession. The developmental stage of veraison, where the grapes undergo a dramatic change in metabolism and start accumulating sugar, coincided with a distinct shift in fungal communities. Co-occurrence networks showed strong correlations between the plant microbiome, the soil microbiome, and weather indices. Our study describes the complex ecological dynamics that occur in microbial assemblages over a growing season and highlight succession of the core community in vineyards.
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