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Complete genome sequence of Bacillus sp. HBCD-sjtu, an efficient HBCD-degrading bacterium

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Abstract

Environmental pollution caused by the release of industrial chemicals is currently one of the most important environmental harms. Manufacturing chemicals can be biodegraded, and valuable intermediates can be used as pharmacophores in drug targeting and have several other useful purposes. Hexabromocyclododecane (HBCD), a non-aromatic brominated flame retardant, is a toxic compound that consists of a cycloaliphatic ring of 12 carbon atoms to which six bromine atoms are attached. It is formed by bromination of cis–trans–trans-1,5,9-cyclododecatriene, but its use is now restricted in several countries, because it is an environmental pollutant. Little is known about whether bacteria can degrade HBCD. A bacterial strain that degrades HBCD was recently isolated using enrichment culture techniques. Based on morphological, biochemical and phylogenetic analysis this isolate was categorized as Bacillus cereus and named strain HBCD-sjtu. Maximum growth and HBCD-degrading activity were observed when this strain was grown at 30 °C, pH 7.0 and 200 RPM in mineral salt medium containing 0.5 mm HBCD. The genome of strain HBCD-sjtu, which consists of only one circular chromosome, was sequenced. This whole genome sequence will be crucial for illuminating the molecular mechanisms of HBCD degradation.

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Acknowledgements

This work was supported by grants from the Chinese National Science Foundation for Excellent Young Scholars (31422004), by the grants from the Chinese National Science Foundation (31770114), and by the ‘Shuguang Program’ (17SG09) supported by Shanghai Education Development Foundation and Shanghai Municipal Education Commission.

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Authors and Affiliations

  1. State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China

    Syed Bilal Shah, Fawad Ali, Ling Huang, Weiwei Wang, Ping Xu & Hongzhi Tang

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  1. Syed Bilal Shah
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  2. Fawad Ali
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  3. Ling Huang
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  4. Weiwei Wang
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  5. Ping Xu
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  6. Hongzhi Tang
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Correspondence to Hongzhi Tang.

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Shah, S.B., Ali, F., Huang, L. et al. Complete genome sequence of Bacillus sp. HBCD-sjtu, an efficient HBCD-degrading bacterium. 3 Biotech 8, 291 (2018). https://doi.org/10.1007/s13205-018-1326-8

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  • DOI: https://doi.org/10.1007/s13205-018-1326-8

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