Methyl jasmonate ameliorates lead toxicity in Oryza sativa by modulating chlorophyll metabolism, antioxidative capacity and metal translocation.

ABSTRACT: Lead (Pb) not only negatively alters plant growth and yield but may also have potentially toxic risks to human health. Nevertheless, the interaction between rice (Oryza sativa L.) plants and the molecular cell dynamics induced by lead-methyl jasmonate (MJ) remains unknown. Here, plants were hydroponically exposed to Pb (150 and 300 µM) alone or in combination with 0.5 and 1 µM MJ. The application of MJ modulated the expression of the HMAs, PCS1, PCS2 and ABCC1 genes, thereby immobilizing the Pb in the roots and lessening its translocation to the aerial parts of the rice plant. The supplementation of MJ improved the growth and yield of Pb-stressed rice by adjusting the proline and chlorophyll metabolism, increasing the phytochelatins (PCs) accumulation and

SUBMITTER: Salavati J 

PROVIDER: S-EPMC8140021 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature