Physiology and transcriptomics highlight the underlying mechanism of sunflower responses to drought stress and rehydration.

ABSTRACT: Drought can adversely influence the crop growth and production. Accordingly, sunflowers have strong adaptability to drought; hence, we conducted analyses for sunflower seedlings with drought stress and rehydration drought acclimation through physiological measurements and transcriptomics. It showed that drought can cause the accumulation of ROS and enhance the activity of antioxidant enzymes and the content of osmolytes. After rehydration, the contents of ROS and MDA were significantly reduced concomitant with increased antioxidant activity and osmotic adjustment. Totally, 2,589 DEGs were identified among treatments. Functional enrichment analysis showed that DEGs were mainly involved in plant hormone signal transduction, MAPK signaling, and biosynthesis of secondary metabolites. Compariso

SUBMITTER: Shen J 

PROVIDER: S-EPMC10583116 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature