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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 195 - 202 (8page)
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초록· 키워드
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The effects of waterborne arsenic (As) exposure on bioaccumulation and antioxidant defenses were examined in the liver and gills of tilapia, Oreochromis niloticus, under thermal stress. Tilapia were exposed to different As concentrations (0, 200, and 400 μg L-1) at three water temperatures (20, 25, and 30°C) for 20 days. After As exposure, higher levels of As accumulation were observed in the gills compared with the liver in elevated water temperatures. In terms of the antioxidant response, glutathione (GSH) levels and the activities of glutathione reductase (GR), glutathione peroxidase (GPx), and glutathione S-transferase (GST) significantly decreased in the liver and gills of tilapia exposed to As for 20 days, regardless of the As concentration (200 and 400 μg L-1) or water temperature. These enzyme activities exhibited greater fluctuations in the liver and gills of tilapia after As exposure in water warmer than 20°C. The present findings suggest that the simultaneous stress of temperature change and As exposure can accelerate As accumulation and alter the antioxidant enzymes activities of tilapia.
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참고문헌 (22)
참고문헌 신청
[학술지(정기간행물)
Ahmed MK / 2013 / Arsenic induced toxicity and histopathological changes in gill and liver tissues of freshwater fish, tilapia(Oreochromis mossambicus) / Exp Toxicol Pathol 6
An MI / 2010 / Activity of antioxidant enzymes and physiological responses in ark shell, Scapharca broughtonii, exposed to thermal and osmotic stress : effects on hemolyph an
Bajanyukova TV / 2007 / Oxidative stress and antioxidant defense responses by goldfish tissues to acute change of temperature from 3 to 23°C / J Therm Biol : 227 ~ 234
Barry Halliwell / 2004 / Measuring reactive species and oxidative damage in vivo and in cell culture: how should you do it and what do the results mean? / British Journal of
Ahmed MK / 2013 / Arsenic induced toxicity and histopathological changes in gill and liver tissues of freshwater fish, tilapia(Oreochromis mossambicus) / Exp Toxicol Pathol 6
An MI / 2010 / Activity of antioxidant enzymes and physiological responses in ark shell, Scapharca broughtonii, exposed to thermal and osmotic stress : effects on hemolyph an
Bajanyukova TV / 2007 / Oxidative stress and antioxidant defense responses by goldfish tissues to acute change of temperature from 3 to 23°C / J Therm Biol : 227 ~ 234
Barry Halliwell / 2004 / Measuring reactive species and oxidative damage in vivo and in cell culture: how should you do it and what do the results mean? / British Journal of
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