Differential expression and localization of expansins in Arabidopsis shoots: implications for cell wall dynamics and drought tolerance.

ABSTRACT: Expansins are cell wall-modifying proteins implicated in plant growth and stress responses. In this study, we explored the differential localization of expansins in Arabidopsis thaliana shoots, with a focus on EXPA1, EXPA10, EXPA14, and EXPA15 utilizing pEXPA::EXPA translational fusion lines. Employing the chemically inducible system pOp6/LhGR for EXPA1 overexpression and high-throughput automatic phenotyping we evaluated the drought response and photosynthetic efficiency under stress conditions. We observed distinct expression patterns of expansins, with EXPA1 primarily localized in stomatal guard cells, while EXPA10 and EXPA15 showed strong cell wall (CW) localization in epidermal and other tissues. Overexpression of EXPA1 re

SUBMITTER: Balkova D 

PROVIDER: S-EPMC11847903 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature