The bZIP73 transcription factor controls rice cold tolerance at the reproductive stage.

ABSTRACT: Cold temperature during the reproductive stage often causes great yield loss of grain crops in subtropical and temperate regions. Previously we showed that the rice transcription factor bZIP73^Jap plays an important role in cold adaptation at the seedling stage. Here we further demonstrate that bZIP73^Jap also confers cold stress tolerance at the reproductive stage. bZIP73^Jap was up-regulated under cold treatment and predominately expressed in panicles at the early binucleate and flowering stages. bZIP73^Jap forms heterodimers with bZIP71, and co-expression of bZIP73^Jap and bZIP71 transgenic lines significantly increased seed-setting rate and grain yield under natural cold stress conditions. bZIP73^Jap :bZIP71 not only repressed

SUBMITTER: Liu C 

PROVIDER: S-EPMC6686130 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature