植物珠芽形成的研究进展  

Research Progress on Plant Bulbil Formation

作　　者：郝春莲 胡凤荣[1] 杨盼盼[2] Hao Chunlian;Hu Fengrong;Yang Panpan(College of Landscape Architecture,Nanjing Forestry University,Nanjing,210037;State Key Laboratory of Vegetable Biobreeding,Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing,100081)

机构地区：[1]南京林业大学风景园林学院,南京210037 [2]中国农业科学院蔬菜花卉研究所,蔬菜生物育种全国重点实验室,北京100081

出　　处：《分子植物育种》2024年第13期4408-4418,共11页Molecular Plant Breeding

基　　金：江苏高校品牌专业建设工程项目(PPZY2015A063)资助。

摘　　要：珠芽通常发生在一些多年生草本植物的地上部位,是形态结构多样、可贮藏营养物质和进行无性繁殖的特殊变态芽或变态茎。本研究重点陈述了植物珠芽的类型、起源、发育和结构以及珠芽形成的影响因素、分子机制和离体诱导方面的研究进展。研究发现植物珠芽可着生在多种部位,具有多种颜色的种类;植物珠芽起源于着生部位分生组织的形成和启动,受各种激素、糖类和环境因子的调控;珠芽发育的物候期、部位、阶段、结构和产量因种而异,因环境而异;目前对植物珠芽形成分子机制的研究大多集中于对相关基因的筛选和相对表达量分析;已经建立起多种植物的珠芽离体诱导体系,为进一步研究珠芽形成的分子机制和信号转导等方向提供科学依据。Bulbils usually occur in the above-ground parts of some perennial herbaceous plants.They are special metamorphic buds or metamorphic stems with diverse morphology and structures,which can store nutrients and carry out asexual reproduction.This research focuses on the research progress in the types,origin,development and structures of plant bulbils,as well as the influencing factors,molecular mechanisms and in vitro induction of bulbil formation.The Study have found that plant bulbils can grow in various parts and have various colors.Plant bulbils originate from the formation and initiation of meristems at the implantation sites,which are regulated by various hormones,carbohydrates and environmental factors.The phenological phases,positions,stages,structures and yield of bulbil development vary from species to environment.At present,the researches on the molecular mechanism of bulbil formation are mostly focused on the screening of related genes and relative expression analysis.A variety of in vitro bulbil induction systems have been established,which will provide scientific basis for further research on the molecular mechanism and signal transduction of bulbil formation.

关 键 词：珠芽 珠芽形成 发育过程 发生机理 离体诱导 

分 类 号：Q945[生物学—植物学]