Se(IV)和Te(IV)对钝顶螺旋藻的急性毒性和联合毒性  

Acute toxicity and joint toxicity of Se(IV) and Te(IV) on Spirulina platensis

作　　者：唐全民[1] 郑文杰[1] 杨芳[1] 白燕[1] 涂芳[1] 郭振江[1] 

机构地区：[1]暨南大学化学系,广东广州510632

出　　处：《海洋科学》2007年第3期18-21,共4页Marine Sciences

基　　金：教育部重点项目(01141);广州市科技项目(2001-J-010-01)

摘　　要：用化学品对藻类毒性测试的标准试验方法,分别研究了硫属元素Se(IV)和Te(IV)单组分对钝顶螺旋藻(Spirulina platensis)的毒性效应,用相加指数法评价了Se(IV)和Te(IV)双组分对螺旋藻的联合毒性效应。结果表明,Te(IV)对螺旋藻的毒性大于Se(IV),其EC50,96h分别为125.2mg/L和36.1mg/L;Se(IV)和Te(IV)的联合毒性效应为拮抗作用,其EC50,96h为103.1mg/L。The toxicity of selenium and tellurium to Spirulina platensis was investigated with a standard experiment method of evaluating chemicals＇ toxic effects on algae. The joint toxicity of selenium and tellurium to S. platensis was assessed with additive index. The results showed that the toxicity effect of Se（Ⅳ） on S. platensis was heavier than that of Te（Ⅳ）. The values of EC50,96h were 125.2 mg/L and 36.1 mg/L, respectively. The joint toxicity was antagonistic, the value of EC50,96h was 103.1 mg/L.

关 键 词：硒 碲 钝项螺旋藻(Spirulina platensis) 毒性 相加指数法 

分 类 号：Q945[生物学—植物学]