亚热带植物科学 ›› 2009, Vol. 38 ›› Issue (03): 73-78.DOI: 10.3969/j.issn.1009-7791.2009.03.019

• 专题综述 • 上一篇    下一篇

盐胁迫下甜菜碱的生物合成及植物耐盐的分子机制

张雪芹,欧阳海波   

  1. 福建省亚热带植物研究所 福建省亚热带植物生理生化重点公共实验室, 福建 厦门 361006
  • 收稿日期:2009-06-04 出版日期:2009-09-10 发布日期:2009-09-10
  • 作者简介:张雪芹(1979-),女,湖南邵阳人,博士,从事植物生理营养研究。
  • 基金资助:

    福建省自然科学基金项目(2009J05052);福建省公益类科研院所科研专项(2009R10005-6)

The Biosynthesis of Betaine under Salt-stress and Its Plant Salt Tolerance Molecular Mechanism

ZHANG Xue-qin, OUYANG Hai-bo   

  1. Fujian Key Laboratory of Physiology and Biochemistry for Subtropical Plant, Fujian Institute of Subtropical Botany, Xiamen 361006, Fujian China
  • Received:2009-06-04 Online:2009-09-10 Published:2009-09-10

摘要: 甜菜碱是一种无毒的渗透调节剂。在盐胁迫下,植物体内迅速积累甜菜碱等小分子化合物以维持细胞内外的渗透平衡,从而维持细胞正常的生理功能。本文对甜菜碱的生理作用、生物合成、基因工程及植物抗盐的分子机制作一综述,为培育理想的耐盐植物新品系提供参考。

关键词: 盐胁迫, 甜菜碱, 生物合成, 渗透调节, 分子机制

Abstract: Betaine is one of the nontoxic osmotic regulators,which is like other small molecular compounds that accumulating rapidly in plants under salt-stress.Accumulation of betaine maintains osmotic balance of cells in plants and keeps the physiological functions normal.The physiological functions,biosynthesis,genetic engineering and plant salt tolerance molecular mechanism of betaine are summarized in this paper,which afforded reference for breeding new salt-tolerance strains.

Key words: salt-stress, betaine, biosynthesis, osmotic adjustment, molecular mechanism

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