Interactions between ethylene and auxin are crucial to the control of grape (Vitis vinifera L.) berry ripening.

ABSTRACT:

Background

Fruit development is controlled by plant hormones, but the role of hormone interactions during fruit ripening is poorly understood. Interactions between ethylene and the auxin indole-3-acetic acid (IAA) are likely to be crucial during the ripening process, since both hormones have been shown to be implicated in the control of ripening in a range of different fruit species.

Results

Grapevine (Vitis vinifera L.) homologues of the TRYPTOPHAN AMINOTRANSFERASE RELATED (TAR) and YUCCA families, functioning in the only characterized pathway of auxin biosynthesis, were identified and the expression of several TAR genes was shown to be induced by the pre-ripening application of the ethylene-releasing compound Ethrel. The induction of TAR expression was accompanied by incre

SUBMITTER: Bottcher C 

PROVIDER: S-EPMC3878033 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature