1,4-二氯苯的细胞毒性效应及在角毛藻中的富集  

The cellular toxic effects of 1,4-dichlorobenzene and concentration in Chaetoceros mulleri

作　　者：石瑛[1] 杜青平[2] 

机构地区：[1]太原师范学院生物系,山西太原030001 [2]广东工业大学环境科学与工程学院,广东广州510006

出　　处：《生态环境学报》2009年第6期2023-2026,共4页Ecology and Environmental Sciences

基　　金：国家自然科学基金项目(30470118);山西省高校科技开发项目(2007147)

摘　　要：以1,4-二氯苯(1,4-DCB)处理后,角毛藻Chaetoceros mulleri的生长状况,藻体细胞的形态改变,及角毛藻中对1,4-DCB的富集能力,来检测1,4-DCB对海洋微藻的毒性效应。结果表明:1,4-DCB对角毛藻的生长有一定抑制作用,该效应表现出一定的质量浓度和时间依赖性;1,4-DCB处理后,角毛藻细胞能明显富集1,4-DCB,该富集能力与环境中1,4-DCB的质量浓度有关;而且角毛藻藻细胞形态受到1,4-DCB的损伤。这表明1,4-DCB污染后能在角毛藻细胞内富集并对其产生细胞毒害效应,且受有机物污染后藻类作为饵料的价值降低。Toxic effects of 1,4-dichlorobenzene （1,4-DCB） on Chaetoceros mulleri were studied through the changes of growth and the cellular morphological changes of Chaetoceros mulleri, even the bioconcentration contents of 1,4-DCB in Chaetoceros mulleri. The results showed the growth of Chaetoceros mulleri was inhibited by the 1,4-DCB in treated time-response and dose-response manners. There were bioconcentration effects in Chaetoceros mulleri treated by 1,4-DCB, and cellular morphology of Chaetoceros mulleri was changed by 1,4 - DCB. The results suggested that the pollution of 1,2-DCB affected the growth of Chaetoceros mulleri- was and decreased the values of Chaetoceros mulleri as the feedstuff.

关 键 词：1  4-二氯苯 角毛藻 富集 细胞形态 

分 类 号：X503.225[环境科学与工程—环境工程]