MeJA-mediated enhancement of salt-tolerance of Populus wutunensis by 5-aminolevulinic acid.

ABSTRACT:

Background

5-Aminolevulinic acid (ALA) is a natural and environmentally benign multifunctional plant growth regulator involved in the regulation of plant tolerance to various environmental stresses. This research aimed to explore the molecular mechanisms of salt tolerance in Populus wutunensis induced by exogenous ALA using physiological and transcriptomic analyses.

Results

Physiological results showed that 50 mg·L^- 1 ALA-treatment significantly reduced the malondialdehyde (MDA) content and the relative electrical conductivity (REC) and enhanced antioxidant activities of enzymes such as SOD, POD and CAT in salt-stressed P. wutunensis seedlings. Transcriptome analysis identified ALA-induced differentially expressed genes (DEGs) associating with increased salt-toler

SUBMITTER: Liu H 

PROVIDER: S-EPMC10077631 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature