Serotonin Mitigates ColdStress-Induced Damage in Kandelia obovata Through Modulating the Endogenous Melatonin- and Abscisic Acid Biosynthesis.

ABSTRACT: Endogenous melatonin (MEL) and abscisic acid (ABA) are involved in the adaptation of plants to environmental stresses. The application of exogenous serotonin (SER) to plants can enhance their tolerance to abiotic stress, such as cold. However, the mechanism associated with serotonin-mediated defense against cold-induced damage in mangroves is still poorly understood. In this study, we demonstrated that mangrove (Kandelia obovata) seedlings sprayed with 200 μmol·L^-1 serotonin exhibited enhanced cold tolerance, as shown by reduced damage to leaves and loss of photosynthesis when exposed to low-temperature conditions. The mechanism associated with the cold adaptation of K. obovata seedlings upon treatment with serotonin was subsequently investigated by transcriptomic

SUBMITTER: Shan Q 

PROVIDER: S-EPMC11855724 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature