Isolation and characterization of a new carbendazim-degrading Ralstonia sp. strain

A bacterial strain 1-1 capable of utilizing carbendazim was isolated from carbendazim-treated Qiyang red soils Hunan Province, China. It is gram-negative, rod-shaped, motile with peritrichous flagella, which formed round, smooth, convex and transparent colonies of about 1.1 mm diameter after 3 days...

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Bibliographic Details
Published in:World journal of microbiology & biotechnology 2005-04, Vol.21 (3), p.265-269
Main Authors: ZHANG, Gui-Shan, JIA, Xiao-Ming, CHENG, Tian-Fan, MA, Xiao-Hang, ZHAO, Yu-Hua
Format: Article
Language:English
Subjects:
Bacteria
Biological and medical sciences
Bioremediation
Biotechnology
Energy sources
Fundamental and applied biological sciences. Psychology
Fungicides
Microbiology
Proteobacteria
Ralstonia
Soil contamination
Yeasts
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Summary:A bacterial strain 1-1 capable of utilizing carbendazim was isolated from carbendazim-treated Qiyang red soils Hunan Province, China. It is gram-negative, rod-shaped, motile with peritrichous flagella, which formed round, smooth, convex and transparent colonies of about 1.1 mm diameter after 3 days of incubation on the isolation and purification medium using carbendazim as the sole carbon and energy sources. The degradation ratios of carbendazim by strain 1-1 were 19.16 and 95.96 in the carbendazim (500 mg/l)-degrading medium and the carbendazim (500 mg/l)-degrading medium supplemented with yeast extract (150 mg/l) within 24 days, respectively. Strain 1-1 was identified as Ralstonia sp. (β-Proteobacteria) based on the results of phenotypic features, G+C mol and phylogenetic analysis of 16S rDNA. Strain 1-1 could become a new bacterial resource for biodegrading carbendazim and might play a bioremediation role for soils contaminated by carbendazim.[PUBLICATION ABSTRACT]
ISSN:0959-3993
1573-0972
DOI:10.1007/s11274-004-3628-8