摘要
螺旋藻(Spirulina platensis)是一种原核蓝藻,其水溶性多糖经我们多年研究为一种无毒的天然产物,分子量为12590,主要组分为: D-甘露糖,D-葡萄糖,D-半乳糖和葡萄糖醛酸。它有提高核酸内切酶的活性和促进DNA修复合成的作用。
Vicia faba seeds were treated with polysaccharide from Spirulina platensis before nd after radiation. From the results of nuclear aberration frequency and types of chromosomal aberration in Vicia faba root tip cells it is proposed that Spirulina plantensis was a natural radioprotector. At a polysaccharide concentration of 0.1%—0.15%, radiation damage on Vicia faba could be reduced both in pretreated and posttreated groups. The effect of protection was more significant in posttreated group than in the pretreated one.
关键词
螺旋藻
多糖
辐射防护
根尖细胞
Spirulina platensis
Polysa chariede
Radioprotection
Root tip cells
