Biotransformations of bisphenols mediated by a novel Arthrobacter sp. strain YC-RL1
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Arthrobacter sp. strain YC-RL1, capable of utilizing bisphenol A (BPA) as sole carbon source for growth, was isolated from petroleum contaminated soil. YC-RL1 could rapidly degrade BPA in a wide range of pH (5.0–9.0) and temperature (20–40 °C). Substrate analysis found that YC-RL1 could also degrade bisphenol F (BPF) and tetrabromobisphenol A (TBBPA). The maximum and minimum concentrations of BPA (0.2–600 mg/L), BPF (0.2–600 mg/L), and TBBPA (0.2–300 mg/L) for efficient biodegradation were detected. The released bromide ion and metabolic intermediates of BPF and BPA/TBBPA were detected, as well as the degradation pathways for BPF and BPA/TBBPA were deduced tentatively. The present study provides important information for the investigation of BPs degrading mechanism and the application of microbial remediation in BP-contaminated environment. This study is the first report about a genus Arthrobacter bacterium which could simultaneously degrade BPA, BPF, and TBBPA.
KeywordsBiodegradation Bisphenols Arthrobacter sp. YC-RL1 Metabolites
We thank Ni Xiang (Department of Entomology & Plant Pathology, Auburn University, USA) and Nahurira Ruth (Graduate School, Chinese Academy of Agricultural Sciences), for the revision of the manuscript, and Lida Han (Public Laboratory, Biotechnology Research Institute of CAAS, China), for great help and good suggestions for HPLC and MS analyses. This work was supported by the National Natural Science Foundation of China (NSFC, No. 31170119) and Basic Research Fund of CAAS (No. 0042014006, No. 0042012003, and No. 0042011006).
Compliance with ethical standards
This article does not contain any studies with human participants or animals performed by any of the authors.
Conflict of interest
The authors declare that they have no competing interests.
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