亚硒酸钠对蚯蚓的毒性及蚓体富硒作用的研究  

THE TOXICITY OF SODIUM SELENITE TO EARTHWORM AND SELENIUM-ACCUMULATING EFFECT OF EARTHWORM

作　　者：刘向辉[1] 戈峰[1] 徐张红[2] 廖尚英[2] 赵永发[3] 王学志[3] 

机构地区：[1]中国科学院动物研究所,北京100080 [2]首都师范大学生物系,北京100085 [3]湖南农业大学植保系,长沙410128

出　　处：《应用与环境生物学报》2001年第5期457-460,共4页Chinese Journal of Applied and Environmental Biology

基　　金：国家"九五"科技攻关项目 (No :96 92 0 1 3 0 3);国际合作基金项目(No:3991 0 1 2 0 595)

摘　　要：以 10 0mgkg- 1 、2 0 0mgkg- 1 、30 0mgkg- 1 等不同质量分数 (w)的亚硒酸钠 (NaSeO2 )添加到蚯蚓饵料中 ,研究了亚硒酸钠处理对蚯蚓生长发育及死亡的影响和蚯蚓的富硒作用 .结果表明 ,3个w(NaSeO2 )处理对蚯蚓生长发育和富硒量的影响都达到极显著水平 .w(NaSeO2 )越高 ,用其处理饲养的蚯蚓死亡率也越高 ,富硒量也越大 ,二者存在一定的正相关性 .在 2 0 0mgkg- 1 的w(NaSeO2 )处理下 ,当蚯蚓饲养到 84d时 ,蚯蚓的富硒量可达到 332 .5mgkg- 1 ,同时死亡率高达 90 % .图 3表 4参The earthworms, Eisenia foetida , were reared with cattle soils mixed with 100 mg kg -1 , 200 mg kg -1 , 300 mg kg -1 of sodium selenite in laboratory. The effect of sodium selenite on the development and survival of earthworms was evaluated by bioassays. The results showed that higher mortality and lower weight occurred to earthworms at higher concentration of sodium selenite. Selenium in earthworm body was accumulated gradually during feed. The mortality 90% of earthworms were found when earthworm raised in 84 days at 332.5 mg kg -1 of selenium. The potential use of earthworms as useful biological indicator of selenium and the selenium accumulating animal were discussed in this paper. Fig 3, Tab 4 , Ref 10

关 键 词：蚯蚓 NaSeO2 生长发育 富硒作用 毒性 亚硒酸钠 

分 类 号：X174[环境科学与工程—环境科学]