表面活性剂对分枝杆菌KR2菌株降解菲的影响

应用生态学报 ›› 2003, Vol. ›› Issue (11): 2011-2014.

表面活性剂对分枝杆菌KR2菌株降解菲的影响

姜霞¹, 区自清¹, 应佩峰¹, Ayfer Yediler², Antonious Kettrup²

1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳 110016;
2. 德国国家环境与健康研究中心生态化学研究所(GSF/I;C), 德国

收稿日期:2001-08-09 修回日期:2002-12-11 出版日期:2003-11-15
通讯作者: 姜霞,女,1974年生,博士,从事污染生态方面的研究,已发表论文数篇.E-mail:jiang-xia74@21cn.com.
基金资助:
国家自然科学基金资助项目(29677021)

Effects of surfactants on degradation of phenanthrene by Mycobacterium ssp

JIANG Xia¹, OU Ziqing¹, YING Peifeng¹, Ayfer Yediler², Antonious Ketrrup ²

1. Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. GSF/Institute of Ecological Chemistry, Germany

Received:2001-08-09 Revised:2002-12-11 Online:2003-11-15

摘要/Abstract

摘要： 采用同位素示踪方法,从表面活性剂的浓度、离子类型和直链长度三方面研究了表面活性剂对分枝杆菌KR2菌株降解菲的影响.结果表明,表面活性剂的存在不能促进KR2菌对菲的降解;高浓度表面活性剂(≥20mg·L^-1)的存在,使菲的降解出现延迟期.非离子表面活性剂Tween80在低浓度时(≤10mg·L^-1)可以优先作为营养基质被分枝杆菌KR2菌株利用.表面活性剂的离子类型对菲降解的抑制作用的顺序为阳离子表面活性剂TDTMA>阴离子表面活性剂LAS>非离子表面活性剂Tween80.表面活性剂的直链长度对菲降解的影响为直链越短,对微生物的毒性越大,菲降解得越不完全.

关键词: ¹⁴C-菲, 分枝杆菌, 表面活性剂

Abstract: With isotopic techniques, the effects of the concentration,ionic type,and straight chain length of surfactants on the degradation of phenanthrene by Mycobacterium ssp.KR2 were studied. The results showed that in the presence of surfactants, the degradation of phenanthrene was not increased. It was delayed in high concentrations of surfactants (≥20 mg·L^-1). Tween80 in its low concentration(≤10 mg·L^-1) was used as a preferential substrate utilized by Mycobacterium ssp.KR2. The degradation was affected by the ionic types of surfactants, and the inhibition to the phenanthrene degradation was cationic surfactant TDTMA>anionic surfactant LAS>nonionic surfactant Tween80. Different lengths of surfactant straight chains had different influence on the degradation of phenanthrene.

Key words: ¹⁴C-phenanthrene, Mycobacterium, Surfactant

中图分类号:

X172

姜霞, 区自清, 应佩峰, Ayfer Yediler, Antonious Kettrup. 表面活性剂对分枝杆菌KR2菌株降解菲的影响[J]. 应用生态学报, 2003, (11): 2011-2014.

JIANG Xia, OU Ziqing, YING Peifeng, Ayfer Yediler, Antonious Ketrrup . Effects of surfactants on degradation of phenanthrene by Mycobacterium ssp[J]. Chinese Journal of Applied Ecology, 2003, (11): 2011-2014.

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