蒽对太平洋牡蛎不同发育时期抗氧化酶活性差异性影响

Effects of Anthracene on Antioxidant Enzymes Activities at Different Developmental Phases of Crassostrea gigas

在实验条件下采用生态毒理学和生物化学方法,选用常见的环境污染物多环芳烃蒽(Anthracene),以太平洋牡蛎(Crassostrea gigas)为实验材料进行毒理实验。研究了太平洋牡蛎D型幼虫、壳顶幼虫、幼贝和成贝4个不同发育时期中的3种抗氧化酶:超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)对蒽胁迫的敏感性。结果表明,在蒽胁迫下,D型幼虫和壳顶幼虫期3种抗氧化酶敏感性均为:POD>SOD>CTA;在幼贝和成贝期,其敏感性为:SOD>CTA,而POD表现出不稳定性。

The toxicological effect of environmental pollutant-polycyclic aromatic hydrocarbon-anthracene on Pacific Crassostrea gigas was examined using the methods of ecootoxicology and biochemistry. The sensitivity of three kinds of antioxidant enzymes：SOD, POD and CAT to anthracene at four different developmental phases was examined. The results showed that the sensitivity of three kinds of antioxidant enzymes to anthracene in D-type larva and numbone larva was POD 〉 SOD 〉 CAT, while in larvae and adult C. giga, the sensitivity order was changed to SOD 〉 CAT, with unstable POD＇s sensitivity.