FIMBRIN2 Regulates ABA‐Induced Stomatal Closure by Promoting Microfilament Bundling and Turnover in Arabidopsis Guard Cells
mutant exhibits a drought-sensitive phenotype and delayed stomatal closure. Further confocal microscopy observations confirmed that this delay results from impaired actin bundling and reduced actin turnover activity. These findings reveal FIM2's role in ABA-induced stomatal closure and deepen our understanding of the functions of ABPs and the actin cytoskeleton in plant stress adaptation.
Authors
- Pengfang Sun
- Miao Hu (ORCID: https://orcid.org/0000-0003-2858-6931)
- P. P. Wang
- Rong Yu (ORCID: https://orcid.org/0009-0001-9116-4144)
- Zixuan Wang (ORCID: https://orcid.org/0009-0005-1612-2832)
Institutions
- China Agricultural University (CN)
- Capital Normal University (CN)
Publication Details
- Journal
- Plant Direct
- Published
- 2026-04-01
- DOI
- https://doi.org/10.1002/pld3.70162
- Primary Topic
- Polysaccharides and Plant Cell Walls
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Northwest Fisheries Science Center