摘要
以肠浒苔中Chl_a含量、SOD活性、POD活性、CAT活性及可溶性蛋白含量等为指标,研究分析了不同浓度Cd2+对肠浒苔的胁迫作用。结果表明,较低浓度Cd2+对肠浒苔5项指标参数值均较对照组有一定的提高,随着Cd2+浓度的增加,5项指标参数值均下降,其中,浓度>10μmol/L时,CAT、POD活性逐渐下降;>15μmol/L时,Chl_a含量、SOD活性、可溶性蛋白含量下降。高浓度的Cd2+对肠浒苔具有明显的胁迫作用。
The effects of Cd^2＋ on 5 parameters of chlorophyll a （Chl_a） and soluble protein contents, and superoxide dismutase （SOD）, peroxidase （POD） and catalase （CAT） activities were determined in alga Enteromorpha intestinalis. The results showed that the 5 parameters increased in low Cd^2＋ concentration treatment, but decreased with the increase in Cd^2＋ concentrations. The activities of POD and CAT gradually declined when Cd^2 ＋ concentration was more than 10 μmol/L; when Cd^2＋ concentration was over 15 μmol/L, the content of Chl_a, the activity of SOD and the content of solubility protein declined. It can be inferred that the alga is stressed in the high con- centration centration of Cd^2＋
出处
《水产科学》
CAS
北大核心
2007年第7期411-413,共3页
Fisheries Science
基金
江苏省海洋生物技术重点建设实验室资助项目(2005HS008)
关键词
肠浒苔
CD^2+
胁迫
Enteromorpha intestinalis
cadmium ion
stress
