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Bark and grape microbiome of Vitis vinifera: impact of geographic patterns and agronomic management

Tiziana Nardi, CREA – Viticulture and Enology Research Centre, Italy

Bark and grape microbiome of Vitis vinifera: impact of geographic patterns and agronomic management

In recent years, the concept of “microbial terroir” has been introduced in the frame of the more renowned notion of “vitivinicultural terroir’, since several studies demonstrated that wine characteristics are related to regional microbial community compositions.

Most of the existing research focused on grape berries microbiota.  Using next-generation sequencing for the first time, this work studies the epiphytic bacterial community of vine bark and its relationships with grape microbiota.

The evidence of a “microbial terroir” seems to be even more marked in bark than in berries, possibly due to its permanence over time and to its physical, proximity to the soil.  Moreover, this study suggests that geographic and anthropogenic factors impact both bark and grape bacteriomes.

Report presented at the Enoforum Awards 2020. The paper reproduced in this video-seminar was presented at the 1st Spanish edition of Enforum Web (5-7 May 2020)

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Published on 03/24/2021
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