Aerobic Degradation of 4-Monobrominated Diphenyl Ether: Identifying and Characterizing Three Strains Isolated from Populus tomentosa Phyllosphere
Xinwei Zhao, Ming Liu, Yuchao Liu, Yuling Li, Shuang Zhang, Kejiu Du
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College of Forestry, Agricultural University of Hebei, Baoding 071000, China,
Hebei Provincial Key Laboratory of Tree Species Germplasm Resources and Forest Protection,
Baoding 071000, China
Submission date: 2016-10-31
Final revision date: 2016-12-22
Acceptance date: 2016-12-29
Online publication date: 2017-05-08
Publication date: 2017-05-26
Pol. J. Environ. Stud. 2017;26(3):1385-1392
Three strains, designated A1, B2, and C3, capable of aerobic degradation of 4-monobrominated diphenyl ether (4-BDE) as sole carbon and energy source were originally isolated from Populus tomentosa phyllosphere. The three strains were identified as Sphingomonas, Enterobacteria, and Curtobacterium based on their morphology and molecular properties. The 4-BDE concentration gradient was set up and showed that the three strains could still survive at 500 mg L-1 4-BDE. Their removal efficiencies were detected by utilizing GC-μECD and the analysis showed that A1, B2, and C3 were able to transform 33%, 20%, and 17% of 80 mg L-1 4-BDE in 2d incubation, respectively. This is the first report of aerobic degradation of 4-BDE by three bacterial strains isolated from phyllosphere.
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