POWERDRESS-mediated histone deacetylation is essential for thermomorphogenesis in Arabidopsis thaliana.

ABSTRACT: Ambient temperature affects plant growth and even minor changes can substantially impact crop yields. The underlying mechanisms of temperature perception and response are just beginning to emerge. Chromatin remodeling, via the eviction of the histone variant H2A.Z containing nucleosomes, is a critical component of thermal response in plants. However, the role of histone modifications remains unknown. Here, through a forward genetic screen, we identify POWERDRESS (PWR), a SANT-domain containing protein known to interact with HISTONE DEACETYLASE 9 (HDA9), as a novel factor required for thermomorphogenesis in Arabidopsis thaliana. We show that mutations in PWR impede thermomorphogenesis, exemplified by attenuated warm temperature-induced hypocotyl/petiole elongation and early flowering. We sh

SUBMITTER: Tasset C 

PROVIDER: S-EPMC5874081 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature