膨胀素的基因家族及功能

The Expansion Gene Family and Its Function

膨胀素是一类能够诱导植物细胞壁松弛的蛋白。目前发现的膨胀素基因家族共由4个家族组成,分别为α-膨胀素、β-膨胀素、类α-膨胀素和类β-膨胀素。简述了膨胀素基因家族及其进化历史,概括介绍了近年来发现的膨胀素功能,综述了近年来国内外关于膨胀素作用机制的研究进展。

Expansion proteins are known to have cell-wall loosening activity in plant during which cell-wall modification occurs.The expansion superfamily is composed by four families,designated α-expansin,β-expansin,expansin-like A and expansin-like B.The expansion gene family and its evolutionary history were discovered as well as its function that recently discovered,in the mean time,its mechanism research progresses at home and abroad were reviewed.