植物细胞壁伸展蛋白的功能与利用  

Plant extensins function and their potential genetic manipulation in crops

作　　者：范春芬 王艳婷[1] 彭良才[1] 丰胜求[1] FAN Chun-Fen;WANG Yan-Ting;PENG Liang-Cai;FENG Sheng-Qiu＊(Biomass and Bioenergy Research Center,College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学植物科学技术学院生物质与生物能源研究中心,武汉430070

出　　处：《植物生理学报》2018年第8期1279-1287,共9页Plant Physiology Journal

基　　金：国家自然科学基金(31670296);华中农业大学自主科技创新基金(2662015PY173)~~

摘　　要：伸展蛋白是一类富含羟脯氨酸的糖蛋白,是植物细胞壁中重要的结构蛋白。伸展蛋白家族基因广泛存在于多种植物中,参与植物细胞壁网络结构形成与修饰、植物细胞伸长、根生长发育等过程,并且影响植物机械强度、倒伏抗性和各种逆境胁迫反应。本文拟从蛋白结构、进化关系、生物学功能等方面介绍植物伸展蛋白近期研究进展,并初步提出了此类基因在农作物和能源植物遗传改良中的利用。Extensins are the typical hydroxyproline-rich glycoproteins （HRGPs）, which are classified as a su- perfamily of cell wall structural proteins. As extensins are ubiquitous in plant kingdom, they have been exam- ined to involve in plant cell wall network construction and remodeling, plant cell elongation, and root growth and development. More recently, extensins have been demonstrated to play an important role in plant mechani- cal strength, plant lodging and stress resistances. Hence, this study briefly analyzed protein structures and ge- netic evolution of the extensins family, updated recent research progress about extensins functions and proposed a hypothetic model about their potential applications in crop genetic improvement.

关 键 词：植物细胞壁 伸展蛋白 糖蛋白 机械强度 植物抗逆 

分 类 号：Q942[生物学—植物学]