Exogenous strigolactone interacts with abscisic acid-mediated accumulation of anthocyanins in grapevine berries.

ABSTRACT: Besides signalling to soil organisms, strigolactones (SLs) control above- and below-ground morphology, in particular shoot branching. Furthermore, SLs interact with stress responses, possibly thanks to a crosstalk with the abscisic acid (ABA) signal. In grapevine (Vitis vinifera L.), ABA drives the accumulation of anthocyanins over the ripening season. In this study, we investigated the effects of treatment with a synthetic strigolactone analogue, GR24, on anthocyanin accumulation in grape berries, in the presence or absence of exogenous ABA treatment. Experiments were performed both on severed, incubated berries, and on berries attached to the vine. Furthermore, we analysed the corresponding transcript concentrations of genes involved in anthocyanin biosynthesis, and in ABA biosynthesis,

SUBMITTER: Ferrero M 

PROVIDER: S-EPMC5913642 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature