水体中生石灰和漂白粉对小球藻生长抑制的研究  

Studies on the Effects of Quicklime and Bleaching Powder in Water Bodies on the Growth Inhibition of Chlorella

作　　者：王秀英[1] 周军辉[1] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《水生态学杂志》2009年第2期145-147,共3页Journal of Hydroecology

摘　　要：研究了水体中生石灰和漂白粉对淡水小球藻的生长的影响。淡水小球藻在含有不同浓度的生石灰或漂白粉的培养液中培养,培养24h后开始使用分光光度计检测培养液在650nm的吸光度值,每隔24h检测1次,连续检测3次。研究结果表明,培养液中生石灰和漂白粉的存在均对小球藻的生长起到抑制作用,并且2者的浓度越高,抑制作用越明显。在24h、48h和72h,生石灰抑制小球藻生长的半效应浓度(EC50)分别是28.57、10.77和9.79mg/L,漂白粉抑制小球藻生长的半效应浓度(EC50)分别是2.17、1.10和0.91mg/L。This article intends to study the effects of quicklime and bleaching powder in water bodies on the growth of Chlorella. Inoculated Chlorella vulgaris was cultured in the solutions which had different concentration gradient of quicklime or bleaching powder. The OD650nm of the culture solutions were determined per 24 hours and continued 3 times. （The results indicated that both quicklime and bleaching powder in the culture solutions had inhibition effects on the growth of Chlorella vulgaris, and the inhibition effects were greater with the increase of concentration. 24 h -EC50, 48h - EC50 and 72h - EC50 of quicklime were 28.57,10.77and 9.79 mg/L respectively, while of bleaching powder were 2.17,1.10 and 0.91 mg/L respectively.

关 键 词：淡水小球藻 生石灰 漂白粉 生长抑制 半效应浓度(EC50) 

分 类 号：Q175[生物学—水生生物学]