Multi-Omics Analysis Reveals That AhNHL Contributes to Melatonin-Mediated Cadmium Tolerance in Peanut Plants.

ABSTRACT: Cadmium (Cd) pollution significantly hampers cleaner production of peanut (Arachis hypogaea L.). Therefore, exploring of tolerance mechanisms to Cd stress and breeding of low-Cd peanut cultivars are urgently needed and require intense efforts. Herein, multi-omics and physiological studies reveal that multiple biological processes, including melatonin (MT) biosynthesis, are involved in the Cd tolerance in peanut plants. Exogenous MT was applied to peanut plants under Cd stress, which decreased Cd accumulation in roots, shoots and seeds for 40%-60%, and promoted the antioxidant capacity. Integrated investigation reveals that MT-mediated Cd tolerance is mainly attributed to the enhanced metabolism of linolenic acid, glutathione (GSH), and phenylpropanoid (lignin), and development of casparian

SUBMITTER: Ren R 

PROVIDER: S-EPMC11822082 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature