摘要
典型盐地植物盐琐琐（Ｈａｌｏｃｎｅｍｕｍｓｔｒｏｂｉｌａｃｅｕｍ）、盐爪爪（Ｋａｌｉｄｉｕｍｆｏｒｉａｔｕｍ）和盐角草（Ｓａｌｉｃｏｒｎｉａｅｕｒｏｐａｅａ）在盐渍环境下细胞内脂质过氧化产物丙二醛（ＭＤＡ）增加，相应的超氧化物歧化酶（ＳＯＤ）也同样增加，且ＳＯＤ含量总保持比ＭＤＡ高１．２倍左右。质膜超微结构的特点是：内陷形成波浪状和在质膜下出现一些泡状结构，有的甚至在质膜下形成一泡状结构分布层。这些都是盐渍造成伤害的表现和标志，但由于细胞抗氧化机能的增强，结构修复的加快，使它们能抵抗高盐的胁迫，保持正常的生命活动。
Under the saline environment,in the cells of saline plants such as Halocnemum strobilaceum,Kalidium foriatum and Salicornia europaea,MDA,the product of lipid over-oxidation,increas-es,and SOD increases correspondingly.The SOD content is always 1.2 time higher than MDA.The characteristics of the plasmalemma ultrastructure is as follows:the plasmalemma is of wavewrinkle;there is vesicular structure every a distribution layer of vesicular structure below the plas-malemma.These can be regarded as an indication and symbols of saline injuries,but the typicalsaline plants enhance their ability of oxidation-resistance and renovate the structure quickly,sothat they can resist high saline stress and fanction properly.
出处
《西北植物学报》
CAS
CSCD
北大核心
1994年第6期1-5,共5页
Acta Botanica Boreali-Occidentalia Sinica
