A C2H2 zinc finger protein, OsZOS2-19, modulates ABA sensitivity and cold response in rice
Cold stress is a major factor limiting rice (Oryza sativa L.) productivity, making it crucial to understand the molecular mechanisms underlying stress responses to develop resilient crops. In this study, we characterized OsZOS2-19, a cold- and abscisic acid (ABA)-responsive C2H2 zinc finger protein, which functions as a transcriptional repressor. Overexpression of OsZOS2-19 in rice lines increases sensitivity to both cold and ABA, reducing cold tolerance, disrupting osmotic balance, and impairing reactive oxygen species (ROS) scavenging. RNA sequencing revealed that OsZOS2-19 overexpression interfered with key stress-response pathways, including those associated with sugar metabolism and glutathione biosynthesis. These findings suggest that OsZOS2-19 negatively regulates cold tolerance and ABA sensitivity by modulating ROS accumulation and osmotic balance, offering new insights into cold adaptation in rice.
Authors
- Zhijun Wang (ORCID: https://orcid.org/0009-0005-3525-7062)
- Zhou Huang (ORCID: https://orcid.org/0000-0002-1255-1913)
- Meijuan Duan (ORCID: https://orcid.org/0000-0003-0325-9205)
- Hao Wu (ORCID: https://orcid.org/0000-0002-3104-4474)
- Dingyang Yuan (ORCID: https://orcid.org/0000-0002-7156-5928)
- Cheng Zheng (ORCID: https://orcid.org/0000-0002-6562-870X)
- Ling Liu (ORCID: https://orcid.org/0000-0002-5703-2471)
- Lingling Li (ORCID: https://orcid.org/0009-0004-1010-4337)
- Wenyu Li (ORCID: https://orcid.org/0000-0001-7635-4604)
- Di Zhang (ORCID: https://orcid.org/0009-0002-0118-8925)
- Xiaoping Ding
- Jianghui Yu (ORCID: https://orcid.org/0009-0004-0865-9026)
Institutions
- China National Hybrid Rice R&D Central Hunan Hybrid Rice Reserch Center (CN)
- State Key Laboratory of Hybrid Rice
- Hunan Agricultural University (CN)
- Hunan Women'S University (CN)
Publication Details
- Journal
- Plant and Cell Physiology
- Published
- 2025-02-07
- DOI
- https://doi.org/10.1093/pcp/pcaf018
- Citations
- 12
- Primary Topic
- Plant Stress Responses and Tolerance
- Type
- article
- Field-Weighted Citation Impact
- 21.00
Funders
- National Natural Science Foundation of China