Toxicological effects of chlorpyrifos on growth, enzyme activity and chlorophyll a synthesis of freshwater microalgae.
This paper aims to acquire the experimental data on the eco-toxicological effects of agricultural pollutants on the aquatic plants and the data can support the assessment of toxicity on the phytoplankton. The pesticide of Chlorpyrifos used as a good model to investigate its eco-toxicological effect on the different microalgae in freshwater. In order to address the pollutants derived from forestry and agricultural applications, freshwater microalgae were considered as a good sample to investigate the impact of pesticides such as Chlorpyrifos on aquatic life species. Two microalgae of Chlorella pyrenoidosa and Merismopedia sp. were employed to evaluate toxicity of Chlorpyrifos in short time and long time by means of measuring the growth inhibition rate, the redox system and the content of chlorophyll a, respectively. In this study, the results showed that EC50 values ranging from 7.63 to 19.64mg/L, indicating the Chlorpyrifos had a relatively limited to the growth of algae during the period of the acute toxicity experiment. Moreover, when two kinds of algae were exposed to a medium level of Chlorpyrifos, SOD and CAT activities were importantly advanced. Therefore, the growth rate and SOD and CAT activities can be highly recommended for the eco-toxicological assessment. In addition, chlorophyll a also could be used as a targeted parameter for assessing the eco-toxicity of Chlorpyrifos on both Chlorella pyrenoidosa and Merismopedia sp.
School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, 210044, Nanjing, China.
Shangchao
S
Chen
School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, 210044, Nanjing, China. Electronic address: chenmdnuist@163.com.
Mindong
M
Chen
School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, 210044, Nanjing, China.
Zhuang
Z
Wang
Wuxi Taihu Lake Restoration Co., Ltd., Wuxi, China.
Weijian
W
Qiu
School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, 210044, Nanjing, China.
Junfeng
J
Wang
School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials, Nanjing University of Information Science & Technology, 210044, Nanjing, China.
Yafei
Y
Shen
Bureau of Meteorology in Gaolan District, Lanzhou, Gansu, China.
Yajun
Y
Wang
Nanjing Tianbo Environmental Technology Co., Ltd., Nanjing, Jiangsu, China.
Shun
S
Ge
D002374:Catalase / Q000378:metabolism*; D002708:Chlorella / Q000187:drug effects / Q000201:enzymology / Q000254:growth & development; D002734:Chlorophyll / Q000096:biosynthesis*; D000077194:Chlorophyll A; D000460:Chlorophyta / Q000187:drug effects / Q000201:enzymology / Q000254:growth & development; D004390:Chlorpyrifos / Q000633:toxicity*; D000458:Cyanobacteria / Q000187:drug effects / Q000201:enzymology / Q000254:growth & development; D054750:Ecotoxicology; D004784:Environmental Monitoring; D005618:Fresh Water / Q000737:chemistry* / Q000382:microbiology; D058086:Microalgae / Q000187:drug effects* / Q000201:enzymology / Q000254:growth & development; D013482:Superoxide Dismutase / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
D014874:Water Pollutants, Chemical; D002734:Chlorophyll; D002374:Catalase; D013482:Superoxide Dismutase; D004390:Chlorpyrifos; D000077194:Chlorophyll A
Assessment; Chlorpyrifos; Eco-toxicological effect; Microalgae