OsACA9, an Autoinhibited Ca²⁺-ATPase, Synergically Regulates Disease Resistance and Leaf Senescence in Rice.

ABSTRACT: Calcium (Ca²⁺) is a versatile intracellular second messenger that regulates several signaling pathways involved in growth, development, stress tolerance, and immune response in plants. Autoinhibited Ca²⁺-ATPases (ACAs) play an important role in the regulation of cellular Ca²⁺ homeostasis. Here, we systematically analyzed the putative OsACA family members in rice, and according to the phylogenetic tree of OsACAs, OsACA9 was clustered into a separated branch in which its homologous gene in Arabidopsis thaliana was reported to be involved in defense response. When the OsACA9 gene was knocked out by CRISPR/Cas9, significant accumulation of reactive oxygen species (ROS) was detected in the mutant lines. Meanwhile, the OsACA9 knock out lines

SUBMITTER: Wang X 

PROVIDER: S-EPMC10856199 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature