Exogenous Rosmarinic Acid Application Enhances Thermotolerance in Tomatoes.

ABSTRACT: Due to global warming, high-temperature stress has become a major threat to plant growth and development, which causes a severe challenge to food security worldwide. Therefore, it is necessary to explore the plant bioactive molecules, which could be a promising approach to strengthening plant thermotolerance. Rosmarinic acid (RA) serves as a plant-derived phenolic compound and has beneficial and health-promoting effects for human beings. However, the involvement of RA in plant stress response and the underlying molecular mechanism was largely unknown. In this study, we found that exogenous RA application conferred improved thermotolerance in tomatoes. The transcript abundance and the enzyme activity of enzymatic antioxidants, such as ascorbate peroxidase (APX), catalase (CAT), glutathione

SUBMITTER: Zhou Z 

PROVIDER: S-EPMC9099758 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature