文献类型： 外文期刊

作者： Wang, Xuemin ¹ ; Li, Jun ¹ ; Ban, Liping ³ ; Wu, Yudi ¹ ; Wu, Xinming ⁴ ; Wang, Yunqi ⁴ ; Wen, Hongyu ¹ ; Chapurin, Vladi ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China

2.Chinese Acad Agr Sci, Inst Grassland Res, Hohhot 010010, Peoples R China

3.China Agr Univ, Coll Anim Sci & Technol, Beijing 100193, Peoples R China

4.Shanxi Acad Agr Sci, Anim Husb & Vet Inst, Taiyuan 030032, Peoples R China

5.NI Vavilov All Russian Res Inst Plant Ind, St Petersburg 190000, Russia

期刊名称：Scientific Reports （ 影响因子：4.379； 五年影响因子：5.133 ）

ISSN： 2045-2322

年卷期： 2017 年 7 卷

页码：

收录情况： SCI

摘要： Bioactive gibberellins (GAs) are essential phytohormones involved in the regulation of many aspects of plant development. GA receptors are crucial in GA signal transduction in plants. The GA receptor GoGID1 promotes plant elongation and improves biomass production when ectopically expressed in tobacco. Here, we discovered that GoGID1 can interact with the DELLA proteins of Arabidopsis in the presence of gibberellic acid. GoGID1 partially or completely functionally rescued the phenotypes of the Arabidopsis double-mutants atgid1a/atgid1c and atgid1a/atgid1b. The overexpression of GoGID1 led to increases in plant height and biomass production in transgenic Arabidopsis plants. The GoGID1 gene enhanced GA sensitivity of the transgenic plants. More importantly, transgenic alfalfa plants overexpressing GoGID1 exhibited increased growth rates, heights and biomass and produced larger leaves when compared with the control plants. Thus, GoGID1 functions as a GA receptor, playing multiple roles in plant growth and development. The GoGID1 gene has the potential to be used in the genetic engineering of forage crops for biomass improvement.