《植物生理学报》 2011, 47(8): 759-764

林木金属硫蛋白研究进展

杜佳, 杨静莉, 李成浩*

东北林业大学, 林木遗传育种国家重点实验室, 哈尔滨150040

通信作者：李成浩；E-mail: chli0@163.com；Tel: 0451-82190607

摘　要：

金属硫蛋白(metallothionein, MT)是一种低分子量、富含半胱氨酸残基的金属结合蛋白, 广泛分布于自然界中。随着 工业化的发展和环境污染的加重, 导致土壤中重金属的积累加剧。林木的植物修复在清除环境污染中占有越来越重要的 作用, 林木金属硫蛋白的研究也越来越热, 本文就其分类, 功能, 表达等特点进行综述, 并对其研究前景进行展望。

关键词：金属硫蛋白; 植物修复; 基因功能; 杨树

收稿：2011-06-13   修定：2011-08-09

资助：转基因生物新品种培育科技重大专项(2009ZX08009-098B)和中央高校基本科研业务费专项资金项目(DL09-CA12)。

Research Progress in Forest Tree Metallothioneins

DU Jia, YANG Jing-Li, LI Cheng-Hao*

State Key Laboratory of Forest Genetics and Tree Breeding, Northeast Forestry University, Harbin 150040, China

Corresponding author: LI Cheng-Hao; E-mail: chli0@163.com; Tel: 0451-82190607

Abstract:

Metallothionein, which widely distribute in eukaryotic and prokaryotic organisms, is a class of cystein-rich and heavy metal-binding proteins with low molecular weights. Development of industrialization and increase of environmental pollution have led to accumulation of heavy metals in soil. The forest tree phytoremediation involved in nvironmental pollution cleanup is playing more and more important roles, researches of forest tree metallothioneins are also increasingly hot. The classification, function, expression, characteristic are reviewed in this paper and the research prospects are also proposed.

Key words: metallothionein; phytoremediation; gene function; populus