首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
海外撷英栏目开通,欢迎投稿

热带亚热带植物学报网络开通

访问总次数
14377340
今日访问
4789
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2079次   下载 1938 本文二维码信息
码上扫一扫!
分享到: 微信 更多
植物器官大小相关基因研究进展
黄琼林,何瑞,詹若挺,陈蔚文
中药资源科学与工程研究中心,中药资源科学与工程研究中心,中药资源科学与工程研究中心,中药资源科学与工程研究中心
摘要:  器官大小是植物形态的一个重要特征,而且具有严格的种属特异性。植物器官大小虽然受到外在的环境因素(如光照、营养等)的影响,但它是由内在特有的细胞数目和细胞大小决定的。许多基因能通过转录调节、蛋白合成、激素调节或松弛细胞壁等途径作用于植物细胞繁殖和/ 或细胞扩张,它们的过表达或缺失表达能改变植物器官大小和加快植物生长。尽管如此,这些基因是通过相对独立的途径起作用,在植物中难以阐明一个相对整合的器官大小基因调控网络,这也是亟待解决的问题。目前,一些与器官大小相关的基因已经应用于农作物育种,并培育出显著增大的农作物品种,这也证实了利用器官大小基因进行植物品种选育的可行性。因此,通过研究药用植物器官大小的基因,在分子水平上有目的地调控器官的大小和形态,是缓解当前许多药用植物面临的资源紧缺、枯竭、濒危困境的可考虑途径之一。
关键词:  植物器官大小  基因  细胞增殖  细胞扩张
DOI:10.3969/j.issn.1005-3395.2013.06.013
分类号:
基金项目:This study was supported by Research Fund of the Doctoral Program of Higher Education(200805720004) and Scientific Research Foundation forReturned Scholars, Ministry of Education of China([2009]1001).
Research Progresses on Genes Involved in Regulation of Plant Organ Size
Huang Qionglin,He Rui,Zhan Ruoting and Chen Weiwen
Research Center of Chinese Medicinal Resource Science and Engineering,Research Center of Chinese Medicinal Resource Science and Engineering,Research Center of Chinese Medicinal Resource Science and Engineering,Research Center of Chinese Medicinal Resource Science and Engineering
Abstract:  Organ size is an important morphological trail in plants, and shows significant differences among species. Organ growth is influenced by environmental factors, such as light and nutrients; however, it is determined by the intrinsic information of cell number and cell size. A large number of genes involved in regulation of cell proliferation and/or cell expansion have been identified, and their up-regulated or down-regulated expression change organ size and accelerate organ growth by means of transcription regulation, protein synthesis and modification, hormonal regulation and cell-wall loosening, and so on. In spite of this, these genes act through relative independent pathways, making it difficult to demonstrate an integrated regulation network in plants. Further challenges will be the regulation pattern and molecular changes in different plant species. Several genes participated in organ growth have been used in crop breeding, and produced significantly large crops. Similarly, characterization of the genes involved in organ size control of Chinese herbs to artificially promote organ size and morphology at the molecular level will contribute to overcome the shortage and endangerment of medicinal plants.
Key words:  Plant organ size  Gene  Cell expansion  Cell proliferation

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真:86 (0)20-3725 2642 E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2