Influence of rootstock on endogenous hormones and color change in Cabernet Sauvignon grapes.

ABSTRACT: Different rootstocks for grapes can significantly affect fruit color and quality, possibly by affecting hormone contents, related genetic pathways, and fruit coloring mechanisms in skin. 'Cabernet Sauvignon' was grafted to '5BB', 'SO4', '140R', 'CS', '3309M' and 'Vitis riparia' rootstocks, with self-rooting seedlings as the control (CS/CS), and sampled from the early stage of veraison to the ripening stage. The effects of rootstock on the contents of gibberellin (GA3), auxin (IAA), and abscisic acid (ABA) in grape skin were determined alongside the expression levels of eight anthocyanin synthesis related genes using real-time fluorescence quantitative PCR methods. The rootstock cultivars exhibited accelerated fruit color change, and the CS/140R combination resulted in grapes with more colo

SUBMITTER: Liu Z 

PROVIDER: S-EPMC10125983 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature