摘要
研究辐射损伤修复抑制剂Ｃａｆ和ＥＤＴＡ后处理对不同辐射敏感性油料作物大豆和油菜幼苗下胚轴内脂质过氧化作用的影响．结果表明．随着辐照剂量的增大，细胞膜透性（电解渗透率Ｓｒ）、丙二醛（ＭＤＡ）和脯氨酸（Ｐｒｏ）含量以及过氧化物酶（ＰＯＤ）活性均增大．大豆的Ｓｒ、ＭＤＡ含量各处理均高于油菜，而ＰＯＤ活性则低于油菜，Ｐｒｏ含量两者无显著差异。Ｃａｆ、ＥＤＴＡ后处理不同程度的降低了两者Ｓｒ、ＭＤＡ和Ｐｒｏ含量，提高了ＰＯＤ活性，从而减轻了辐射对膜的损伤。
Abstract In this study, Caf, EDTA post treatment to the effect of membrane lipid peroxidation in irradiated B. napus and soybean seedling stage were investigated. The results indicated that the content of Pro and MDA,the cell membrane permeability and the activity of peroxidase in hypocotyl increased with the increase of irradiation doses. The soybean seedling cell membrane permeability and content of MDA were higher than that of B. napus,but the POD activity in soybean was lower. The content of Pro in both soybean and B. napus had little difference.The content of MDA and Pro,and the cell membrane permeability were decreased,POD activity was enhanced by Caf. EDTA post treatments in compansion with H2O treatment.caf,EDTA post treatment decreased the damage of cell membrane in the hypocotyl in soy bean and B. napus. In general, caf+ EDTA complex post treatments didn't accumulate effects.
出处
《中国油料》
CSCD
北大核心
1996年第2期41-44,共4页
