洗涤剂主成分LAS和AEO对软珊瑚氧化应激水平的影响

Effect of main components of detergent on oxidative stress in soft corals

    摘要
  • 摘要: 浅水珊瑚受到海岸排放污水中日益增加的洗涤剂的威胁。本文旨在探究洗涤剂主成分线性十二烷基苯磺酸钠（LAS）和脂肪醇聚氧乙烯醚（AEO）对近海软珊瑚的影响，实验将肉芝软珊瑚（Sarcophyton trocheliophorum ）与小棒短指软珊瑚（Sinularia microclavata）急性暴露于不同浓度的LAS和AEO环境中，测定在此过程中的叶绿素含量以及部分关键酶的活性变化。结果显示：LAS环境胁迫下，珊瑚Chl a含量在高浓度LAS环境下显著升高，不同LAS浓度下两种软珊瑚的SOD与CAT活性均显著升高，GST与AKP活性受LAS环境影响不明显。AEO环境胁迫下，两种软珊瑚的CAT活性均显著升高，高浓度的AEO环境对两种软珊瑚的叶绿素含量与GST活性影响显著。说明LAS与AOE对两种软珊瑚抗氧化功能产生影响，本实验为研究洗涤剂对珊瑚礁的影响提供数据支持。

     

    Abstract: Shallow corals are threatened by the increasing detergents in coastal discharges. To investigate the effects of detergent main component linear alkylbenzene sulfonates (LAS) and fatty alcohol polyoxyethylene ether (AEO) on shallow soft corals. Sarcophyton trocheliophorum and Sinularia microclavata were exposed to different concentrations of LAS and AEO environment for 8 hours, and chlorophyll content, and the activity of some key enzymes were determined. The results showed that the chlorophyll a content of corals increased significantly under high concentration of LAS, and the activities of SOD and CAT of the two soft corals increased significantly under different LAS concentrations. The activities of GST and AKP were not significantly affected by LAS environment. Under AEO environment stress, the CAT activity of the two soft corals increased significantly, and the high concentration of AEO environment had a significant effect on the chlorophyll content and GST activity of the two soft corals. This experiment provides data support for the study of the effects of detergents on coral reefs.

     

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