Na⁺/K⁺ Balance and Transport Regulatory Mechanisms in Weedy and Cultivated Rice (Oryza sativa L.) Under Salt Stress.

ABSTRACT:

Background

Salinization is a primary abiotic stress constraining global plant growth and production. Weedy rice, though highly homologous to cultivated rice, is more salt tolerant during seed germination and seedling growth; we hypothesize that this is owing to ionic homeostasis and changes in the expression of genes encoding ion transport regulators.

Results

The four different genotypes of weedy (JYGY-1 and JYFN-4) and cultivated (Nipponbare and 9311) rice have different salt-tolerance during seed germination and seedling vegetative growth under salt stress. In this study, Na⁺ and Ca²⁺content increased in weedy and cultivated rice genotypes under salt stress while K⁺ and Mg²⁺decreased; however, JYGY-1 had the lowest Na⁺

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC6311050 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature