野生大豆耐盐性研究进展

野生大豆对于拓宽大豆种质遗传基础和丰富大豆种质基因库具有重要意义.该文从野生大豆的资源概况及优良性状、耐盐机理和利用野生大豆提高栽培大豆耐盐性等三个方面,对近年来国内外有关野生大豆耐盐性的解剖结构、生理基础、分子生物学基础等方面的研究进展进行了系统综述,并提出野生大豆通过茎叶表皮上的"腺体"及对Na+和Cl-的排斥性,实现对盐渍环境的颉颃作用.较强的抗氧化能力、大豆异黄酮代谢和耐盐基因也是其适应盐渍环境的重要原因.今后应对野生大豆耐盐机理的遗传学基础进行深入研究,并通过种群保护以保障野生大豆的发掘鉴定和创新利用.

Progress of Salt Tolerance Study in Wild Soybean

The annual wild soybean (Glycine soja) played an important role in broading soybean germplasm and improving soybean gene pool.This paper discusses the advances in 3 aspects of salt tolerance in wild soybean,including resource survey and excellent characters,mechanisms of salinity tolerance and the possibility of using wild soybean resources to improve cultivated soybean salt tolerance.Recent researches about salt tolerance in wild soybean such as anatomical structure,physiological mechanisms and molecular biology are summarized.Through the salt glands in leaf epidermis and the repellency of Na⁺ and Cl^-,the wild soybean achieves the antagonist of saline environment.Strong antioxidant capacity,soy isoflavone metabolism and salt tolerance gene are also important reasons for its adaptation to saline environment.The strategies for further research are genetic basis on salt tolerance and the species protection,in order to explore the innovative value.