Metagenomic analysis of the effects of plant- and yeast-based formulations on the grapevine leaf microbiome of cv. 'Touriga Franca'.

ABSTRACT:

Introduction

Grapevine is highly susceptible to fungal diseases such as downy mildew and powdery mildew, which are traditionally managed through the intensive use of chemical fungicides. However, in the context of increasingly sustainable viticulture, biofungicides derived from plant and yeast extracts are gaining attention. Despite this, their impact on the grapevine leaf microbiome, crucial for plant health and disease resilience, remains underexplored.

Material and methods

This study evaluated the effects of foliar applications of biofungicides (nettle extract, Japanese knotweed extract, and a yeast-based formulation - T66 and T90) in comparison with conventional chemical treatments and control (no treatment). Over two consecutive growing seasons, high-throughput sequenci

SUBMITTER: Monteiro E 

PROVIDER: S-EPMC12391083 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature