Regulation of DNA (de)Methylation Positively Impacts Seed Germination during Seed Development under Heat Stress.

ABSTRACT: Seed development needs the coordination of multiple molecular mechanisms to promote correct tissue development, seed filling, and the acquisition of germination capacity, desiccation tolerance, longevity, and dormancy. Heat stress can negatively impact these processes and upon the increase of global mean temperatures, global food security is threatened. Here, we explored the impact of heat stress on seed physiology, morphology, gene expression, and methylation on three stages of seed development. Notably, Arabidopsis Col-0 plants under heat stress presented a decrease in germination capacity as well as a decrease in longevity. We observed that upon mild stress, gene expression and DNA methylation were moderately affected. Nevertheless, upon severe heat stress during seed development, gene

SUBMITTER: Malabarba J 

PROVIDER: S-EPMC8005211 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature