文献类型： 外文期刊

作者： Huang, Quan-Sheng ¹ ; Wang, Hai-Yun ¹ ; Gao, Peng ¹ ; Wang, Guo-Ying ² ; Xia, Gui-Xian ¹ ;

作者机构： 1.Chinese Acad Sci, Inst Microbiol, Natl Key Lab Plant Genom, Beijing 100101, Peoples R China

2.China Agr Univ, State Key Lab Agrobiotechnol, Beijing 100094, Peoples R China

3.Natl Ctr Plant Gene Res, Beijing 100101, Peoples R China

4.Xinjiang Acad Agr Sci, Urumqi 830094, Xinjiang, Peoples R China

期刊名称：PLANT CELL REPORTS （ 影响因子：4.57； 五年影响因子：4.463 ）

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收录情况： SCI

摘要： The gene GhCPK1 encoding a calcium dependent protein kinase was identified from cotton. Transcripts of GhCPK1 accumulated primarily in the elongating fiber, and Arabidopsis plants transformed with GhCPK1 promoter-GUS construct exhibited GUS activity mainly in the developing trichomes, roots, young leaves and sepals. In the bombarded onion epidermal cells, GhCPK1-GFP fusion proteins showed a subcellular distribution in the plasma membrane. In vitro assays indicated that GhCPK1 was a functional calcium-dependent kinase able to undergo autophosphorylation and phosphorylation of the known substrate histone III-S. Together, these results suggest that GhCPK1 may play a role in the calcium signaling events associated with fiber elongation.