Transcriptomics and physiology reveal the mechanism of potassium indole-3-butyrate (IBAK) mediating rice resistance to salt stress.

ABSTRACT:

Background

IBAK, as a plant growth regulator, has broad application prospects in improving crop resistance to abiotic stress.

Results

In this study, the regulation mechanism of IBAK on rice was revealed by physiology and transcriptomics by spraying 80 mg·L^-1 IBAK solution on rice leaves at the early jointing stage under salt stress. The results showed that spraying IBAK solution on leaves under salt stress could significantly increase K⁺ content, decrease Na⁺ content, increase net photosynthetic rate (Pn), and increase the activity of catalase (CAT) and the contents of glutathione (GSH) and soluble protein in rice leaves. Using IBAK under salt stress increased the expression of plant hormone signal transduction pathway-related genes LOC433254

SUBMITTER: Zhou H 

PROVIDER: S-EPMC10652493 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature