The protein phosphatase OsPP1a dephosphorylates and stabilizes CatC to scavenge excess H2O2 and enhance salt tolerance in rice - PubMed
5 hours ago
- #OsPP1a
- #rice breeding
- #salt tolerance
- OsPP1a is a protein phosphatase that enhances salt tolerance in rice.
- OsPP1a dephosphorylates CatC at Thr-292, increasing its stability and activity.
- Dephosphorylation inhibits APIP6-mediated ubiquitination and degradation of CatC.
- OsPP1a overexpression leads to lower phospho-threonine levels in CATs, improving stress tolerance.
- OsPP1a balances salt tolerance and growth, reducing grain yield loss under salt stress.
- The study provides insights into CAT regulation and strategies for breeding salt-tolerant rice.