Carbon-Deprivation-Driven Transcriptome Reprogramming in Detached Developmentally-Arresting Arabidopsis Inflorescences

ABSTRACT: Senescence is genetically-controlled and activated in mature tissues during ageing. However, immature plant tissues also display senescence-like symptoms when continuously exposed to adverse energy-depleting conditions. We used detached dark-held immature inflorescences of Arabidopsis thaliana to understand the metabolic reprogramming occurring in immature tissues transitioning from rapid growth to precocious senescence. Macroscopic growth of the detached inflorescences rapidly ceased upon placement in water in the dark at 21M-BM-0C. Inflorescences were completely de-greened by 120 h of dark incubation and by 24 h had already lost 24% of their chlorophyll and 34% of their protein content. Comparative transcriptome profiling at 24 h revealed that inflorescences response at 24 h had a large

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Alice Trivellini 

PROVIDER: E-GEOD-41099 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress