强氧化自由基对裸甲藻的影响  

Study on effect of acute-oxidation radical on Gymnodinium mukimotoi in the shore of Jiaozhou gulf

作　　者：董克兵[1] 白希尧[1] 白敏冬[1] 倪小风[1] 张红[1] 

机构地区：[1]大连海事大学环境科学与工程学院,辽宁大连116026

出　　处：《大连海事大学学报》2003年第2期50-52,共3页Journal of Dalian Maritime University

基　　金：国家自然科学基金重点资助项目(60031001);国家重大基础研究前期研究专项资助项目(2002CCC00900).

摘　　要：用强电场放电方法把O2、H2O加工成强氧化羟基自由基水溶液,投加于裸甲藻藻液中,研究其对裸甲藻的杀灭情况以及对裸甲藻叶绿素a和类胡萝卜素含量的影响.海水羟基比值浓度达到0.68mg/L时,裸甲藻从0.89×104/mL减少到未检测出;羟基水溶液比值浓度为0.6mg/L时,裸甲藻的叶绿素a、类胡萝卜素含量均低于检测方法的最低限值.实验结果表明,羟基在较低的质量浓度下便能完全杀灭裸甲藻、彻底分解叶绿素a和类胡萝卜素,有望成为治理赤潮新的绿色、有效方法.The solution of hydroxyl radical, produced with O2 and H2O by strongfield discharge, was applied to Gymnodinium mukimotoi solution to examine the killing effect on Gymnodinium mukimotoi and the influence on the contents of chlorophylla and and carotenoid. As the ratio concentration of hydroxyl radical amounted to 0.68 mg/L, The initial concentration of Gymnodinium mukimotoi decreased from 0.89×104/mL to zero, with an attenuation rate of 100%. As the ratio concentration of hydroxyl radical reached 0.6 mg/L, the content of chlorophylla and and carotenoid was lower than the detection limit. The experimental results indicated that hydroxyl radical could kill off Gymnodinium mukimotoi and decompose chlorophylla and carotenoid completely. Therefore, it will be a green and effective means to apply hydroxyl radical to treat red tide.

关 键 词：强氧化羟基自由基 裸甲藻 强电场放电法 赤潮 色素 致死实验 叶绿素 类胡萝卜素 杀灭情况 

分 类 号：Q949.24[生物学—植物学] X55[环境科学与工程—环境工程]