镍对纤维藻（Ankistrodesmus．sp．）毒性作用研究  

EFFECT OF NICKEL ON ANKISTRODESMUS SP. IN THE PHYSIOLOGICAL AND BIOCHEMICAL PROCESS-AN INITIAL REPORT ON STUDIES OF THE NICKELS TOXICOLOGICAL EFFECTS ON ANKISTRODESMUS SP

作　　者：姜彬慧[1] 林碧琴[1] 

机构地区：[1]沈阳市环保工程设计研究院,辽宁大学生物系

出　　处：《环境保护科学》1995年第4期26-31,共6页Environmental Protection Science

摘　　要：本文研究了重金属镍对一种淡水绿藻──纤维藻（Ａｎｋｉｓｔｒｏｄｅｓｍｕｓ．ｓｐ．）的毒性作用．结果表明：纤维藻对镍毒作用反应敏感．镍对纤维藻的半数有效浓度９６ＥＣ５０为０．３３μｇ／ｍＬ镍，当镍浓度≥０．４μｇ／ｍＬ时，纤维藻的生长受到明显抑制，生长滞期延长，光合作用受阻，细胞膜透性增加．当镍浓度为３．２μｇ／ｍＬ时，其蛋白质氨基酸含量明显下降．This paper has dealed with the toxicological effects of the heavy metal Nickal on the freshwater green alga Ankistrodesmus SP. Our studies have showed Ankistrodesmus SP.responded sensitively to Ni2+. After 96 hrs exposure,the EC 50 value was calcutated to be 0.33μg/ml Ni2+. When the concentration of Ni1+was 0. 4 μg/ml. Nickel has caused the inhibition of the growth and photosynthesis and increasing the permeability in cell membrane. The contents of Protein amin acids were evidently reduced by 3. 2μg/ml NI2+.

关 键 词：藻类 毒性 作用 镍 环境污染 纤维藻 

分 类 号：X503.23[环境科学与工程—环境工程]