Two Triacylglycerol Lipases Are Negative Regulators of Chilling Stress Tolerance in Arabidopsis.

ABSTRACT: Cold stress is one of the abiotic stress conditions that severely limit plant growth and development and productivity. Triacylglycerol lipases are important metabolic enzymes for the catabolism of triacylglycerols and, therefore, play important roles in cellular activities including seed germination and early seedling establishment. However, whether they play a role in cold stress responses remains unknown. In this study, we characterized two Arabidopsis triacylglycerol lipases, MPL1 and LIP1 and defined their role in cold stress. The expression of MPL1 and LIP1 is reduced by cold stress, suggesting that they may be negative factors related to cold stress. Indeed, we found that loss-of-function of MPL1 and LIP1 resulted in increased cold tolerance and that the <

SUBMITTER: Wang L 

PROVIDER: S-EPMC8950723 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature