Di-(2-ethylhexyl) Phthalate toxic effect on Scenedesmus obliquus evaluated by the biomakers of inhibition rate and pigment content
The effect of Di-(2-ethylhexyl) Phthalate was investigated when alga Scenedesmus obliquus has been exposed to different concentrations(5, 10, 20, 40 and 80 mg. L -1) at 24, 48, 72and 96 hours of exposure. Toxicity test was done by using four biomarkers including growth inhibition rate and the content of chlorophyll a, chlorophyll b and carotenoid. This study indicated that with the increase concentration of Di-(2-ethylhexyl) Phthalate, the alga inhibition rate went up in a dose dependent manner. The effect of Di-(2-ethylhexyl) Phthalate on the changes of pigment content showed the treatment groups were significantly decrease compared with control group(P<0.01). The content of carotenoid was hardly changed while it significantly decreased in higher concentration (80 mg. L -1) (p<0.01). It indicated that DEHP has acute toxicity on S. obliquus.
WANG Li WEI Chen-xi YANG Xu TANG Li-ya
Laboratory of Environmental Sciences College of Life Science, Huazhong Normal University Wu Han, Chi Department of Applied Biology and Chemical Technology Hong Kong Polytechnic University Hong Kong, Ch
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）