Light Microclimate-Driven Changes at Transcriptional Level in Photosynthetic Grape Berry Tissues.

ABSTRACT: Viticulture practices that change the light distribution in the grapevine canopy can interfere with several physiological mechanisms, such as grape berry photosynthesis and other metabolic pathways, and consequently impact the berry biochemical composition, which is key to the final wine quality. We previously showed that the photosynthetic activity of exocarp and seed tissues from a white cultivar (Alvarinho) was in fact responsive to the light microclimate in the canopy (low and high light, LL and HL, respectively), and that these different light microclimates also led to distinct metabolite profiles, suggesting a berry tissue-specific interlink between photosynthesis and metabolism. In the present work, we analyzed the transcript levels of key genes in exocarps and seed integuments of b

SUBMITTER: Garrido A 

PROVIDER: S-EPMC8465639 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature