2-氯苯甲酸好氧降解菌的降解特性

Abstract

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.

Key words: chlorobenzoic acid, aerobic degradation, degradation kinetics, degradation genes

CLC Number:

X172

WANG Shi-Ming, CUI Zhong-Li. 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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Characteristics of Aerobic Degradation of 2-Chlorobenzoic Acid by Degrading Bacteria

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