Potential contribution of strigolactones in regulating scion growth and branching in grafted grapevine in response to nitrogen availability.

ABSTRACT: In grafted plants, rootstocks assure the mineral nutrition of the scion and modify its development. In this study, we show that two grapevine rootstock genotypes have different shoot branching architectures when cultivated as cuttings and that this trait is transmitted to the scion when grafted. Shoot branching plasticity in response to nitrogen supply was also studied. As strigolactones are known to have a role in the regulation of shoot development in response to nutrient availability, their involvement in the control of scion architecture by the rootstock was investigated. Functional characterization of putative grapevine strigolactone biosynthetic genes in Arabidopsis mutants or grapevine cell suspensions showed similar functions to those of Arabidopsis. Both rootstocks produced strigo

SUBMITTER: Cochetel N 

PROVIDER: S-EPMC6054193 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature