Randomized trial shows that vine compartments are primary influencers of elemental composition in grapevines, suggesting links to microbial communities.
Key Points
This research aims to understand how different grapevine rootstocks and their associated microbiomes affect the elemental composition of the vine.
Surveyed ten grapevine rootstock genotypes grafted onto two scion types in a diversity trial.
Characterized rhizosphere metagenomes and elemental composition of berries and roots.
Examined correlations between microbial composition and elemental patterns.
Elemental composition varied significantly among vine compartments, with scion and rootstock having minor effects.
'Cabernet Sauvignon' berries contained higher levels of boron, potassium, and phosphorus than 'Chardonnay' berries.
Streptomyces and Mesorhizobium showed significant negative correlations with molybdenum, cadmium, potassium, and iron levels.