OsABT Is Involved in Abscisic Acid Signaling Pathway and Salt Tolerance of Roots at the Rice Seedling Stage.

ABSTRACT: Rice is a staple cereal crop worldwide, and increasing its yields is vital to ensuring global food security. Salinity is a major factor that affects rice yield. Therefore, it is necessary to investigate salt tolerance mechanisms in rice. Proteins containing WD40 repeats play important roles in eukaryotic development and environmental adaptation. Here, we showed that overexpression of OsABT, a gene encoding a WD40-repeat protein, enhanced salt tolerance in rice seedlings by regulating root activity, relative conductivity, malondialdehyde and H₂O₂ content, and O₂^•- production rate. Root ion concentrations indicated that OsABT overexpression lines could maintain lower Na⁺ and higher K⁺/Na⁺ ratios and up

SUBMITTER: Wen D 

PROVIDER: S-EPMC9504391 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature