植物体细胞脱分化分子调控机制研究进展  

Research progress of molecular mechanisms underlying plant somatic cell dedifferentiation

作　　者：刘娜 代学焕 向凤宁[1] 刘振华[1] Liu Na;Dai Xuehuan;Xiang Fengning;Liu Zhenhua(The Key Laboratory of Plant Development and Environmental Adaptation Biology,Ministry of Education,College of Life Sciences,Shandong University,Qingdao,Shandong 266237,China)

机构地区：[1]山东大学生命科学学院,植物发育与环境适应生物学教育部重点实验室,山东青岛266237

出　　处：《植物生理学报》2020年第2期127-133,共7页Plant Physiology Journal

基　　金：国家转基因重大专项(2018ZX08009-14B);山东省自然科学基金重大研究计划项目(ZR2018ZC0334);NSFC-山东联合基金(U1906203);国家自然科学基金(31770317和31970189);国家转基因生物新品种培育重大专项(2016ZX08010002-009).

摘　　要：植物细胞具有全能性,已分化的植物细胞可通过脱分化(dedifferentiation)和再分化(redifferentiation)两个过程再生组织、器官或植株。脱分化形成愈伤组织是植物细胞获得全能性的起始步骤,因此也是组织培养中植株再生的关键步骤。本文主要从愈伤组织的细胞学特性以及愈伤组织形成的分子调控机制两个方面对近年来植物细胞脱分化的研究进展进行了综述。Plant cell can be induced to regenerate tissue,organ and whole plants through dedifferentiation and redifferentiation in tissue culture systems based on the totipotency of plant cells.The regeneration of whole plants from single cells typically begins with the formation of calluses.In this review,we focus on recent advances about the cell characteristics of different types of callus and the regulatory mechanisms underlying plant cell dedifferentiation.

关 键 词：脱分化 愈伤组织 植物细胞全能性 植株再生 

分 类 号：Q942.5[生物学—植物学]