Cd^(2+)对青蛤(Cyclina sinensis)的毒性及蓄积过程研究  

ACUTE TOXITY TEST AND ANALYSIS ON ACCUMULATION OF CADMIUM (Cd^(2+)) TO THE CLAM CYCLINA SINENSIS

作　　者：张丽岩[1] 宋欣[1] 高玮玮[1] 潘鹤婷[1] 潘宝平[1] 

机构地区：[1]天津师范大学生命科学学院细胞遗传与分子调控天津市重点实验室,天津300387

出　　处：《海洋与湖沼》2010年第3期418-421,共4页Oceanologia Et Limnologia Sinica

基　　金：天津市科委应用基础与前沿技术重点项目资助;09JCZDJC19300号;天津市科委应用基础研究面上项目资助;06YFJMJC11800号

摘　　要：利用水生动物急性毒性实验方法,在6个浓度下Cd2+对青蛤的急性毒性进行测定,经回归分析后,得到Cd2+对青蛤96h半致死浓度为20.09mg/L,安全浓度为0.201mg/L。分别对半致死浓度和安全浓度下Cd2+在青蛤体内不同组织的蓄积情况进行了分析。结果表明,在半致死浓度条件下,168h青蛤各组织Cd2+的含量依次为肌肉>内脏团>鳃;而在安全浓度下,其结果为内脏团>鳃>肌肉,内脏团对于Cd2+富集能力远高于肌肉。讨论了青蛤的养殖环境及产品检验等问题。To determine the acute toxicity Cd2＋ to Cyclina sinensis,six concentrations of Cd2＋ were tested.The 96-h half lethal concentration （LC50） and the safe concentration of Cd2＋ for C.sinensis were 20.09mg/L and 0.201mg/L,respectively.In addition,we determined Cd2＋ accumulation in C.sinensis at both the LC50 and the safe concentration.At the LC50 and 168h after the addition of Cd2＋,various tissue contents of Cd2＋ followed the order of muscle visceral mass gill;while at the safe concentration,the order was visceral mass gill muscle.The Cd2＋ accumulating capacity of the visceral mass is much higher than that of the muscles.Our data may serve as a reference to evaluate Cd2＋ distribution in C.sinensis farms and C.sinensis-based seafood products.

关 键 词：青蛤 镉 半致死浓度 重金属蓄积 

分 类 号：Q789[生物学—分子生物学]