海洋科学2016，Vol.40Issue(6)：17-22,6.DOI:10.11759/hykx20150330001
福建沿海米氏凯伦藻赤潮对皱纹盘鲍鳃组织抗氧化酶活性的影响研究
Effects of Karenia mikimotoi blooms on antioxidant enzymes in gastropod abalone, Haliotis discus hannai
摘要
Abstract
To analyze the main threat of K. mikimotoi on the physiological features of abalones, we investigated the effects of K. mikimotoi on antioxidant enzymes of the abalone Haliotis discus hannai, including superoxide dismu-tase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px). The results showed that exposure to a low cell concentration of K. mikimotoi (not exceeding 104 cell/mL) caused significantly adverse effects on the activity of SOD and CAT enzymes in the abalone gills, whereas no adverse effects were observed for the activity of GSH-Px. SOD activity showed an “induced and then inhibited” trend. Compared to the control group, K. mikimotoi increased SOD activities by 120%, 130%, and 130% during the first 24 h, respectively. Thereafter, K. mikimotoi caused sig-nificant declines in SOD activity of 77%, 77%, and 73% at 48 h. Moreover, compared to the control group, CAT activity was inhibited and declined continuously over 48 h, decreasing by 58%, 51%, and 37%. These results indi-cate that K. mikimotoi (not exceeding 104 cell/mL) can cause inhibitory effects on the activities of antioxidant en-zymes (SOD and CAT).We speculate that the occurrence of a K. mikimotoi bloom could cause oxidative damage to abalone organs during short-term exposure.关键词
米氏凯伦藻(Karenia mikimotoi)/皱纹盘鲍(Haliotis discus hannai)/鳃/抗氧化酶/酶活性Key words
Karenia mikimotoi/Haliotis discus hannai/gill/antioxidant enzymes分类
资源环境引用本文复制引用
林佳宁,颜天,张清春,王云峰,刘青,周名江..福建沿海米氏凯伦藻赤潮对皱纹盘鲍鳃组织抗氧化酶活性的影响研究[J].海洋科学,2016,40(6):17-22,6.基金项目
国家自然科学基金项目(41476102) （41476102）
中国科学院战略重点研究项目(XDA01020304)@@@@[Foundation：National Natural Science Foundation of China, No.41476102 （XDA01020304）
Strategic Priority Research Program of the Chinese Academy of Sciences, No. XDA01020304] （）
