Influence of Climate on Soil and Wine Bacterial Diversity on a Vineyard in a Non-Traditional Wine Region in Argentina

Winemaking in non-traditional regions such as Buenos Aires Province in Argentina faces many challenges. Establishment of a stable microbiota in soil and wine can be hindered by extreme climatic conditions, thus interfering with the quality of the final product. We aimed to assess the influence of two climatic features of different magnitude on the diversity of bacterial microbiota in soil and wine, throughout three consecutive years. This is relevant from the point of view of definition of terroir in the productive area, monitoring of microbiota under stressful conditions, and microbial ecology in general. We believe our results can provide vintners with valuable knowledge for improving their wine production in the face of challenging conditions.