Gene expression changes occurring at bolting time are associated with leaf senescence in Arabidopsis.

ABSTRACT: In plants, the vegetative to reproductive phase transition (termed bolting in Arabidopsis) generally precedes age-dependent leaf senescence (LS). Many studies describe a temporal link between bolting time and LS, as plants that bolt early, senesce early, and plants that bolt late, senesce late. The molecular mechanisms underlying this relationship are unknown and are potentially agriculturally important, as they may allow for the development of crops that can overcome early LS caused by stress-related early-phase transition. We hypothesized that leaf gene expression changes occurring in synchrony with bolting were regulating LS. ARABIDOPSIS TRITHORAX (ATX) enzymes are general methyltransferases that regulate the adult vegetative to reproductive phase transition. We generated an a

SUBMITTER: Hinckley WE 

PROVIDER: S-EPMC7649007 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature