Karrikin Improves Osmotic and Salt Stress Tolerance via the Regulation of the Redox Homeostasis in the Oil Plant Sapium sebiferum.

ABSTRACT: Karrikins are reported to stimulate seed germination, regulate seedling growth, and increase the seedling vigor in abiotic stress conditions in plants. Nevertheless, how karrikins alleviate abiotic stress remains largely elusive. In this study, we found that karrikin (KAR¹) could significantly alleviate both drought and salt stress in the important oil plant Sapium sebiferum. KAR¹ supplementation in growth medium at a nanomolar (nM) concentration was enough to recover seed germination under salt and osmotic stress conditions. One nanomolar of KAR¹ improved seedling biomass, increased the taproot length, and increased the number of lateral roots under abiotic stresses, suggesting that KAR¹ is a potent alleviator of abiotic stresses in plant

SUBMITTER: Shah FA 

PROVIDER: S-EPMC7105677 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature