Myosin XI-1 mediates salt tolerance through a Na+ transport pathway in Arabidopsis.

ABSTRACT: Salt stress significantly affects plant growth and productivity; therefore, it is important to understand the molecular mechanisms underlying salt tolerance. Myosin XI, a primary driver of intracellular trafficking and organelle movement in plant cells, has recently been implicated in abiotic stress responses. However, their specific roles in salt tolerance remain unclear. In this study, we demonstrate that the expression of Arabidopsis myosin XI isoforms AtXI-K, AtXI-2, and AtXI-1 is induced under salt stress. Notably, both the triple mutant (3ko) and the single atxi-1 mutant showed enhanced salt tolerance. Contrastingly, the salt tolerance of atxi-k, atxi-2, and the double mutant (2ko) lines was similar to that of the wild-type (WT) plants, indicating a specific role of AtXI-1 in salt to

SUBMITTER: Liu H 

PROVIDER: S-EPMC12814873 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature