首页|OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice
OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
维普
Panicle exsertion is one of the crucial agronomic traits in rice(Oryza sativa).Shortening of panicle exsertion often leads to panicle enclosure and severely reduces seed production.Gibberellin(GA)plays important roles in regulating panicle exsertion.However,the underlying mechanism and the relative regulatory network remain elusive.Here,we characterized the oswrky78 mutant showing severe panicle enclosure,and found that the defect of oswrky78 is caused by decreased bioactive GA contents.Biochemical analysis demonstrates that OsWRKY78 can directly acti-vate GA biosynthesis and indirectly suppress GA metabolism.Moreover,we found OsWRKY78 can interact with and be phosphorylated by mitogen-activated protein kinase(MAPK)kinase Os-MAPK6,and this phosphorylation can enhance OsWRKY78 stability and is necessary for its bio-logical function.Taken together,these results not only reveal the critical function of OsWRKY78,but also reveal its mechanism via mediating crosstalk between MAPK and the GA signaling pathway in regulating panicle exsertion.
State Key Laboratory of Black Soils Conservation and Utilization,Key Laboratory of Soybean Molecular Design Breeding,Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China
University of Chinese Academy of Sciences,Beijing 100049,China
Key Laboratory of Saline-alkali Vegetation Ecology Restoration,Northeast Forestry University,Ministry of Education,Harbin 150040,China
College of Life Science,Northeast Forestry University,Harbin 150040,China
展开 >
国家自然科学基金国家自然科学基金Heilongjiang Key Research and Development ProgramNational Natural Science Foundation of China-Heilongjiang Joint FundYouth Innovation Promotion Association Chinese Academy of SciencesYoung Scientist Group Project of Northeast Institute of Geography and Agroecology,Chinese Academy of sciences
万方数据
维普
