水稻泛素连接酶功能研究进展 - 中国农学通报.pdf

中国农学通报 2013,29(18): 1-5 Chinese Agricultural Science Bulletin 水稻泛素连接酶功能研究进展 1 1 1 1,2 杨珍珍 ，王志龙 ，卢向阳 ，王国梁 1 2 （湖南农业大学，长沙410128 ；Department of Plant Pathology, the Ohio State University, Columbus, Ohio 43210, USA） 摘 要：泛素广泛调控真核细胞的生命活动，泛素连接酶（E3）在泛素-蛋白酶体降解系统中特异性地识别 目标底物。归纳了水稻E3 的调控作用，重点总结了水稻E3 参与激素信号传导、生长发育及生物和非生 物胁迫调控等生命活动，指出将来的研究方向是：（1）剖析水稻E3 及目标底物互作方式；（2 ）研究水稻 E3 抗生物和非生物胁迫的分子机理；（3）解析水稻E3 介导的种子发育机理，为水稻品质改良和抗逆育 种提供借鉴与指导。 关键词：水稻；泛素连接酶；目标底物；生物和非生物胁迫 中图分类号：S332 文献标志码：A 论文编号：2013-0487 The Advance in Functional Studies of Rice Ubiquitin Ligases 1 1 1 1,2 Yang Zhenzhen , Wang Zhilong , Lu Xiangyang , Wang Guoliang 1 ( HunanAgriculturalUniversity, Changsha 410128; 2DepartmentofPlantPathology,theOhioStateUniversity,Columbus, Ohio 43210, USA) Abstract: Ubiquitination extensively regulates the eukaryotic cell life activities. Ubiquitin E3 ligases play a specific role to recognize the targets for degradation via the ubiquitin-proteasome degradation system. This article summarizes the regulatory roles of E3s in rice (Oryza sativa L.), focusing on their regulation roles in hormone signaling, growth and development, abiotic and biotic stresses, points out that the directions of future research are: (1) to dissect the interaction between rice E3s and their targets; (2) to study the molecular mechanism of rice E3s for tolerance to biotic and abiotic stresses; (3) to resolv