您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

IbMPK3/IbMPK6-mediated IbSPF1 phosphorylation promotes cold stress tolerance in sweet potato

文献类型： 外文期刊

作者： Park, Sul-U 1 ; Jung, Young Jun 2 ; Kwon, Hyo Jeong 2 ; Lee, Ji Yeon 2 ; An, Jonguk 3 ; Lee, Hyeong-Un 3 ; Jeong, Jae Cheol 4 ; Bian, Xiaofeng 5 ; Yu, Tao 6 ; Kwak, Sang-Soo 1 ; Kim, Yun-Hee 7 ; Kim, Ho Soo 1 ;

作者机构： 1.Korea Res Inst Biosci & Biotechnol KRIBB, Plant Syst Engn Res Ctr, Daejeon 34141, South Korea

2.Natl Inst Ecol NIE, Seocheon 33657, South Korea

3.Rural Dev Adm, Natl Inst Crop Sci, Bioenergy Crop Res Ctr, Muan 58545, South Korea

4.Korea Res Inst Biosci & Biotechnol KRIBB, Biol Resource Ctr, Jeongeup 56212, South Korea

5.Jiangsu Acad Agr Sci, Inst Food Crops, Prov Key Lab Agrobiol, Nanjing, Peoples R China

6.Liaoning Acad Agr Sci, Shenyang, Peoples R China

7.Gyeongsang Natl Univ, Dept Biol Educ, Jinju 52828, South Korea

关键词： IbSPF1; Sweet poatato; Cold stress; IbMPK3/IbMPK6

期刊名称：BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS （ 影响因子：2.2； 五年影响因子：2.5 ）

ISSN： 0006-291X

年卷期： 2025 年 769 卷

页码：

收录情况： SCI

摘要： Environmental stress caused by biotic and abiotic factors negatively affects crop quality and productivity. Plants employ multiple signaling mechanisms under stress, with the mitogen-activated protein kinase (MAPK) cascade-particularly MPK3 and MPK6-serving as a central regulator of stress adaptation through substrate phosphorylation. While these kinases are well-studied in model plants, their functional role in sweet potato [Ipomoea batatas (L.) Lam] remains poorly characterized. This study investigates how cold tolerance in sweet potato is modulated by IbMPK3/IbMPK6-mediated phosphorylation of the stress-responsive transcription factor IbSPF1 at Ser75 and Ser110. Wild-type and transgenic sweet potato plants were grown under normal and cold-stress conditions, followed by the assessment of IbSPF1 phosphorylation levels and plant physiological parameters. Notably, transgenic plants overexpressing IbSPF1 (IbSPF1DD) exhibited significantly higher tolerance to cold stress than non-transgenic plants under cold stress condition, which was attributed to an increase in photosynthetic efficiency and a decrease in lipid peroxidation. Compared with non-transgenic plants, transgenic IbSPF1DD plants showed significantly upregulated levels of cold-regulated genes. Conclusively, IbMPK3/IbMPK6-mediated phosphorylation of IbSPF1 plays an important role in cold stress signaling and tolerance in sweet potato.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台