Isolation and Genetic Identification of Dibenzothiophene Degrading Bacteria from Contaminated Soil

Abstract:

The biodegradation abilities of 10 dibenzothiophene degrading microbial consortia isolated from contaminated soil were investigated. 5 highly efficient dibenzothiophene degrading bacterial strains were obtained from the consortium LKY10 by screening on LB-agar plates.The bacterial strain LKY10-5 reduced more than 90% of dibenzothiophene with 40 mg•L^-1 concentration, and had higher degradation efficiency than enriched bacterial consortia in 7 days of cultivation. According to species identification and phylogenetic analysis, strain LKY10-1 and LKY10-3 belonged to Actinobacteria and could be included in Rhodococcus and Cellulosimicrobium genus, LKY10-5 and LKY10-6 belonged to Proteobacteria and could be included in Pseudomonas and Devosia genus, and LKY10-13 could be included in Lysinibacillus genus and belonged to Firmicutes.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 292-295
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.292
• Online since: December 2012
• Authors: Lin Li, Chao Cheng Zhao, Qi You Liu, Yun Bo Zhang
• Keywords: Biodegradation Bacteria, Dibenzothiophene, Genetic Identification

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