植物硒的研究进展

微量元素硒不仅是人和动物的必要的营养元素，也是植物生长发育的不可缺乏的元素，植物体内的硒主要以硒蛋白、硒核酸，硒多糖等多种生物大分子以及硒代半胱氨酸和硒代蛋氨酸等生物小人子有机合物存在，在全综述了植物在自然界硒生态链转化中的地位和作用，植物对硒的吸收方式及代谢途径，硒在植物中的生物学效应，植物硒开发利用现状及方向从多方面分析讨论了植物硒的研究进展。

Progress in the Research of Selenium in Plants

The microelement selenium is not only a necessary element for human being and animals,but also an essential element for the growth of plants.The selenium in the body of the plants mainly exist in many kinds of biological big molecules such as se-albumen,se-nuclein and se-polysaccharide as well as selenocysteine and selnomethionine.This paper surveys the role that plants play in the conversion of se-ecological chain in the natural world,the way of the plants absorbing the Selenium and the metabolizing approach,the biological effect of the selenium in the plants,the present conditions and trend of the exploitation of the selenium in plants.