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Grapevine ABA receptor VvPYL1 regulates root hair development in Transgenic Arabidopsis

文献类型： 外文期刊

作者： Li, Hui 1 ; Gao, Zhen 3 ; Chen, Qiuju 1 ; Li, Qin 1 ; Luo, Meng 1 ; Wang, Jiyuan 1 ; Hu, Liping 1 ; Zahid, Muhammad Salman 1 ; Wang, Lei 1 ; Zhao, Liping 1 ; Song, Shiren 1 ; Xu, Wenping 1 ; Zhang, Caixi 1 ; Ma, Chao 1 ; Wang, Shiping 1 ;

作者机构： 1.Shanghai Jiao Tong Univ, Sch Agr & Biol, Dept Plant Sci, Shanghai, Peoples R China

2.Shandong Acad Agr Sci, Inst Agrofood Sci & Technol, Key Lab Agroprod Proc Technol Shandong, Jinan, Peoples R China

3.Shandong Agr Univ, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China

关键词： Grapevine; Root system; ABA; PYL1; Root hair

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）

ISSN： 0981-9428

年卷期： 2020 年 149 卷

页码：

收录情况： SCI

摘要： Root architecture is very important for plant growth. In this study, we characterized the process of root formation in grapevine (Vitis vinifera L.). Continuous observation of root morphology during development revealed that the establishment of root system could be divided into five stages: initial cultivation (stage I), preliminary development (stage II), even change (stage III), root system formation (stage IV), and root architecture stability (stage V). The level of abscisic acid (ABA) increased from stages II to IV and was stable at stage V. Quantitative expression analysis of 11 genes encoding ABA-related rate-limiting enzymes in different tissues showed that the expression of VvPYL1 was the highest in roots. Spatiotemporal expression analysis showed that VvPYL1 was highly expressed during stages II and III. Furthermore, VvPYL1 was highly expressed in lateral roots of grapevine seedlings in tissue culture. Overexpression of VvPYL1 in Arabidopsis thaliana resulted in longer root hairs compared with wild-type plants. Moreover, the root hair length of transgenic lines was hypersensitive to exogenously applied ABA. Additionally, VvPYL1 overexpressing plants showed greater drought tolerance and longer root hairs than wild-type plants under osmotic stress. These results suggest that VvPYL1 may play a key role in root development and drought resistance.

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[1]Grapevine ABA receptor VvPYL1 regulates root hair development in Transgenic Arabidopsis. Li, Hui,Chen, Qiuju,Li, Qin,Luo, Meng,Wang, Jiyuan,Hu, Liping,Zahid, Muhammad Salman,Wang, Lei,Zhao, Liping,Song, Shiren,Xu, Wenping,Zhang, Caixi,Ma, Chao,Wang, Shiping,Wang, Shiping,Gao, Zhen. 2020

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