欢迎访问《中国农学通报》,

中国农学通报 ›› 2012, Vol. 28 ›› Issue (6): 19-23.

• 农学 农业基础科学 • 上一篇    下一篇

蔗糖载体调控作物“源、库”分配的研究进展

伍宝朵 周蓉 陈海峰 沙爱华 单志慧 张晓娟 杨中路 陈水莲 郭丹丹 朱晓玲 张婵娟 周新安   

  • 收稿日期:2011-07-26 修回日期:2011-10-18 出版日期:2012-02-25 发布日期:2012-02-25
  • 基金资助:

    国家自然科学基金项目“基于植物模拟的塑料连栋温室环境的设计与仿真”;国家转基因生物新品种培育重大专项

The Progress of Sucrose Transporter in Regulating ‘Source-sink’ Distribution

  • Received:2011-07-26 Revised:2011-10-18 Online:2012-02-25 Published:2012-02-25

摘要:

蔗糖是植物光合作用及物质转运的主要形式,植物体内重要的信号物质,并且为植物生长代谢提供碳源与能量。而在蔗糖转运过程中,蔗糖载体(SUT)发挥着不可替代的作用。首先介绍了植物中“源、库、流”理论和蔗糖载体基因分离,阐述了蔗糖载体在蔗糖由“源”到“库”转运过程中发挥的作用,及与农艺性状的关系,并阐明蔗糖在植物体生长发育过程中的作用。归纳总结了蔗糖载体介导的蔗糖跨膜转运过程,进而探讨了蔗糖跨膜转运存在的问题。

关键词: 转基因食品, 转基因食品, 标识现状, 认知程度, 知情选择权

Abstract:

Sucrose, the major product of photosynthesis in autotrophic organs, is the main transport form of carbohydrate from sites of primary assimilation to heterotrophic tissues in many plant species. During the process of transporting source from organs to sink organs, sucrose transporters (SUTs) are thought to play an important role in both loading and unloading processes. In this paper, the theroy of ‘sourse-flow-sink’ in plants and the isolation of sucrose transporter gene were firstly introduced. Then the functions of sucrose transporter were described during sucrose transporting from source to sink, in turn the relationship of sucrose transporter and agronomic traits were discussed. Furthermore, sucrose transporter could effect plant growth and development. Totally, the path of sucrose translocation mediated by sucrose transporter was summarized. However, there were still some questions in the trans-membrane transport process.