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The Response of Antioxidant Enzyme in Zebra Fish to Water Polluted by Heavy Metals Pollutants

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Abstract:

Zebra fish was used as testing animal to be stimulated by heavy metals (Cd2+ and Pb2+) in 1/20, 1/10, 1/5 half-lethal concentrations respectively. The superoxide dismutase (SOD) and catalase (CAT) were used as biomarkers to study the response of heavy metals pollutants in water on antioxidant enzyme of zebra fish. The results indicated that the activities of SOD weakened with the time increasing in the polluted water containing Cd2+, but the activities of CAT increased under the low concentration, and the activities trend of CAT increased at the initial period and then decreased when the concentration of Cd2+ increased a certain degree. Moreover, the activities of SOD became stronger along the time increasing in the polluted water containing Pb2+, but the enhancing trend of SOD gradually became weaker along increased concentrations, however for the activities of CAT enhanced in the initial period and then fell with the time, and the trend of decline was more and more obvious.

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Info:

Periodical:

Advanced Materials Research (Volumes 955-959)

Pages:

506-511

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.955-959.506

Citation:

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Online since:

June 2014

Authors:

Qiu Gen Zhang*, Jing Yi Wu, Su Hua Chen

Keywords:

Catalase (CAT), Heavy Metal, Superoxide Dismutase (SOD), Zebra Fish

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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