Integrated Fertilization with Bagasse Vermicompost Changes the Microbiome of Mencía Must and Wine

Winemaking is a well-known process that includes several steps in the production of grape must and wine. Grape marc, or bagasse, byproduct wine can be vermicomposted used as organic fertilizer. marc vermicompost has microbial communities are richer more stable than alone, its addition to vineyard’s terroir improve yields quality. Here we compare microbiota Mencía from grapevines treated with without (standard fertilization) derived marc. high-quality red broadly grown Galicia, Spain, appreciated for fresh acidity fruity flavors. When vines increase their production, final improves organoleptic properties. Metataxonomic analyses bacterial 16S rRNA fungal ITS gene regions showed have distinct taxonomic composition (phyla, genera ASVs—amplicon sequence variants) groups. Must bacteriotas mycobiotas show no significant variation alpha-diversity, while differences structure (beta-diversity) between control grapevines. Likewise, functional diversity predicted metabolic pathways (biosynthesis, degradation/utilization/assimilation, generation precursor metabolites energy, macromolecule modification superpathways) also changes. Our study proposes changes abundance taxa processes they undergo during winemaking may Mencía’s properties productivity.