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Isolation and identification of 1,3,6,8-tetrabromocarbazole – degrading bacteria
Journal of Environmental Science and Health, Part A ( IF 1.9 ) Pub Date : 2022-05-25 , DOI: 10.1080/10934529.2022.2079339
Shaorong Huang 1 , Suiqiong Sheng 2 , Meixian Bei 3 , Yangyong Zhao 4 , Ruihong Chen 5
Affiliation  

Abstract

Halogenated carbazoles are a new class of persistent organic pollutants with dioxin-like toxicity, and this study focused on the microbial degradation of 1,3,6,8-tetrabromocarbazole. In this study, a novel 1,3,6,8-tetrabromocarbazole (1,3,6,8-TBCZ) degrading strain TB-1 was isolated from contaminated soil and identified as Achromobacter sp. based on its 16S rRNA gene sequence analysis, morphological, physiological, and biochemical characteristics. The soil sample was collected from a pharmaceutical factory in Suzhou, China. The strain was able to effectively degrade 1 mg L−1 1,3,6,8-TBCZ in 7 d at pH 7.0 and 30 °C with 80% degradation rate. During the process, the intermediate metabolites were identified as Tribromocarbazole, dibromocarbazole and bromocarbazole via gas chromatography mass spectrometry (GC-MS). The results indicated that strain TB-1 may contribute to the bioremediation of polyhalogenated carbazoles (PHCs) in contaminated environment.

更新日期:2022-05-25
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