| 2-氯苯甲酸好氧降解菌的降解特性 |
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| 引用本文： | 王世明,崔中利. 2-氯苯甲酸好氧降解菌的降解特性[J]. 生态与农村环境学报, 2002, 18(4): 31-34 |
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| 作者姓名： | 王世明 崔中利 |
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| 作者单位： | 1. 南京理工大学,化工学院,江苏,南京,210094
2. 南京农业大学,微生物系,江苏,南京,210095 |
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| 摘 要： | 分离出 2株以 2 -氯苯甲酸为唯一碳源的细菌W1和W2 ,这 2株菌对 2 -氯苯甲酸的降解均表现为一级动力学反应。W1降解酶系为诱导酶 ,对 2 -氯苯甲酸的降解动力学常数为 -0 .1 34h- 1;W2降解酶系为非诱导酶 ,对 2 -氯苯甲酸的降解动力学常数为 -0 .0 388h- 1。W1还能够降解 4 -氯苯甲酸、苯、甲苯和邻苯二酚 ,但不能降解 3-氯苯甲酸、2 ,4 -二氯苯甲酸、乙苯、丙苯和萘。W1菌体质粒和染色体提取实验表明 ,其降解基因位于染色体上。
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| 关 键 词： | 2-氯苯甲酸 好氧降解 一级动力学 降解基因 |
| 文章编号： | 1001-5906(2002)04-0031-04 |
| 修稿时间： | 2002-04-26 |
Characteristics of Aerobic Degradation of 2-Chlorobenzoic Acid by Degrading Bacteria |
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| Wang Shiming et al. Characteristics of Aerobic Degradation of 2-Chlorobenzoic Acid by Degrading Bacteria[J]. Journal of Ecology and Rural Environment, 2002, 18(4): 31-34 |
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| Authors: | Wang Shiming et al |
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| Abstract: | Two strains of bacteria(W1 and W2)feeding only on 2-chlorobenzoic acid were isolated.The degradation enzyme system of W1 is inducible,with rate constant being -0.134 h -1,whereas the degradation enzyme system of W2 constructive with rate constant being -0.038 8 h -1 while degrading 2-chlorobenzoic acid.Besides,W1 can also degrade 4-chlorobenzoic acid,benzene,toluene and 2-hydroxphenol,but not 3-chlorobenzoic acid,1,4-dichlorobenzoic acid,ethylbenzene,propylbenzene and naphthalene. Plasmid and chromosome extraction experiments indicate that the degradation genes of W1 are on chromosome. |
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| Keywords: | chlorobenzoic acid aerobic degradation degradation kinetics degradation genes |
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