生物技术通报 ›› 2016, Vol. 32 ›› Issue (3): 18-23.doi: 10.13560/j.cnki.biotech.bull.1985.2016.03.004

• 综述与专论 • 上一篇    下一篇

植物颗粒结合淀粉合成酶(GBSS)基因的表达调控机制研究进展

苗红霞1,孙佩光2,张凯星3,金志强1,2,徐碧玉1   

  1. 1. 中国热带农业科学院热带生物技术研究所 农业部热带作物生物技术重点开放实验室, 海口 571101;
    2. 中国热带农业科学院海口实验站 海南省香蕉遗传育种改良重点实验室, 海口 570102;
    3. 海南大学农学院, 海口 570228
  • 收稿日期:2015-04-08 出版日期:2016-03-24 发布日期:2016-03-25
  • 作者简介:苗红霞, 女, 博士, 副研究员, 研究方向:香蕉分子生物学;E-mail:miaohongxia@itbb.org.cn
  • 基金资助:
    国家自然科学基金项目(31401843), 海南省自然科学基金项目(314116, 314100), 现代农业产业技术体系建设专项资金资助项目(CARS-32)

Research Progress on Expression Regulation Mechanism of Genes Encoding Granule-bound Starch Synthase in Plants

MIAO Hong-xia1, SUN Pei-guang2, ZHANG Kai-xing3, JIN Zhi-qiang1, 2, XU Bi-yu1   

  1. 1. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Tropical Crop Bioscience and Biotechnology, Ministry of Agriculture, Haikou 571101;
    2. Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences/Hainan Provincial Key Laboratory for Genetics and Breeding of Banana, Haikou 570102;
    3. Department of Agriculture, Hainan University, Haikou 570228
  • Received:2015-04-08 Published:2016-03-24 Online:2016-03-25

摘要: 颗粒结合淀粉合成酶(granule-bound starch synthase, GBSS)是决定直链淀粉合成的关键酶, 单子叶植物GBSS包含两种同工酶, 分别是GBSSI和GBSSII, 双子叶植物只有GBSSII一种同工酶。GBSSI基因的表达主要控制种子、胚、胚乳等贮藏器官中直链淀粉的合成, 而GBSSII主要控制根、茎、叶等营养器官中直链淀粉的合成。综述了模式植物及农作物中GBSS基因表达调控机制的最新研究进展, 以期为其他植物GBSS基因的研究提供借鉴。

关键词: GBSS基因, 直链淀粉, 表达分析, 调控机制

Abstract: Granule-bound starch synthase(GBSS)is a key enzyme to determine the amylose synthesis of plants. In monocots, GBSS includes two isoenzymes, designated as GBSSI and GBSSII. Dicot plants contain only one of GBSSII isoenzyme. The expression of gene GBSSI mainly controls the amylose synthesis in the storage organs such as seeds, embryos, and endosperms etc, while the expression of gene GBSSII mainly controls the amylose synthesis in the vegetative organs such as roots, stems, and leaves etc. In this paper, the latest research progress on expression regulation mechanism of GBSS genes in model plants and crops was reviewed. These results are expected to provide a reference for the study of GBSS genes from other plants.

Key words: GBSS gene, amylose, expression analysis, regulatory mechanism