十二烷基苯磺酸钠对西洋菜生长影响的研究

目的]为西洋菜在治理和修复十二烷基苯磺酸钠（SDBS）污染的富营养化地表水体中的应用提供试验依据。方法]通过测定不同浓度SDBS处理西洋菜的POD、CAT、SOD活性以及可溶性蛋白和叶绿体色素含量研究了SDBS对西洋菜生长的影响。结果]当SDBS的浓度低于10mg／L时，西洋菜的可溶性蛋白含量随SDBS浓度的增大而上升；当SDBS的浓度高于10mg／L时，其可溶性蛋白含量随SDBS浓度的增大而下降；当SDBS的浓度为50mg／L时，其可溶性蛋白含量低于对照。当SDBS浓度达10mg／L时，西洋菜的叶绿素a、叶绿素b、总叶绿素和类胡萝卜素含量均达最大值，且其SOD和CAT活性达最大值。当SDBS的浓度为100mg／L时，西洋菜的SOD活性明显低于对照；当SDBS浓度为50mg／L时，其CAT活性明显低于对照。当SDBS浓度为5mg／L时，西洋菜的POD活性达最大值。结论]西洋菜对SDBS的耐受力较强，故其适用于治理有表面活性剂污染的富营养化水体。

Research on the Effect of Sodium Dodecylbenzene Sulfonate on the Growth of Nasturtium officinale R.Br.

Objective] The purpose of the research was to provide experimental basis for the application of Nasturtium officinale R.Br.in controlling and restoring eutrophic surface water bodies polluted with SDBS.Method] The effect of SDBS on the growth of N.officinale was researched through determining the activities of POD,CAT and SOD and the contents of soluble protein and chloroplast pigments in N.officinale treated by SDBS with different concn.Result] When the concn.of SDBS was lower than 10 mg/L,the content o...