Grapevine decline is associated with difference in soil microbial composition and activity

Grapevine decline is a top concern in viticulture worldwide and often associated with many biotic abiotic factors. Grape trunk diseases viruses are some of the most frequently identified causes vine dieback. However, sometimes observed when no mineral deficiency or excess, pathogenic can be identified. Soil enzymatic microbial activities relevant bio-indicators since they known to influence health. microbiota, linked fitness, influenced by soil microbiota coming from pool inhabiting vineyard. This work describes diversity activity four different vineyard plots Bordeaux region, selected due presence localised declining areas unexplained yet disease symptoms. Soils were sampled within same plot showing symptoms, during autumn spring periods. Significant differences activities, biomass found among soils even if those presented quite similar physicochemical characteristics that could not explain these declines. The results assays distinguished patterns periods an overall greater non-declining areas. suggests displaying symptoms present dysbiosis functionality which