PMID- 36084739
OWN - NLM
STAT- MEDLINE
DCOM- 20221013
LR  - 20221013
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 313
DP  - 2022 Nov 15
TI  - Functional bacterial consortium responses to biochar and implications for BDE-47 
      transformation: Performance, metabolism, community assembly and microbial 
      interaction.
PG  - 120120
LID - S0269-7491(22)01334-3 [pii]
LID - 10.1016/j.envpol.2022.120120 [doi]
AB  - The influence of biochar on the biodegradation of persistent organic pollutants 
      (POPs) has been extensively studied. However, the underlying mechanisms behind 
      the response of functional microbial consortia to biochar remain poorly 
      understood. Herein, we systematically explored the effect of biochar on 
      2,2',4,4'-tetrabrominated ether (BDE-47) biodegradation, and investigated the 
      interaction and assembly mechanism of the functional bacterial consortium QY2. 
      The results revealed that the biodegradation efficiency of QY2 for BDE-47 
      increased from 53.85% to 94.11% after the addition of biochar. Fluorescence 
      excitation-emission matrix and electrochemical analysis showed that 
      biochar-attached biofilms were rich in redox-active extracellular polymeric 
      substances (EPS, 3.03-fold higher than free cell), whose strong interaction with 
      biochar facilitated the electron transfer of the biofilm, thus enhancing the 
      debromination degradation of BDE-47. Meanwhile, the assembly model and molecular 
      ecological networks analysis indicated that bacterial community assembly in 
      biofilms was more driven by deterministic processes (environmental selection 
      >75.00%) upon biochar stimulation and exhibited closer interspecific cooperative 
      interactions, leading to higher biodiversity and broader habitat niche breadth 
      for QY2 in response to BDE-47 disturbance. Potential degraders (Methylobacterium, 
      Sphingomonas, Microbacterium) and electrochemical bacteria (Ochrobactrum) were 
      selectively enriched, whose role as keystone bacteria may be participated in 
      biofilm formation and redox-active EPS secretion (r > 0.5, P < 0.05). These 
      findings deepen the understanding of the mechanisms by which biochar promotes 
      microbial degradation of PBDEs and provided a theoretical basis for better 
      regulation of functional bacterial communities during environmental remediation.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Guo, Zhanyu
AU  - Guo Z
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Zhou, Heyang
AU  - Zhou H
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China.
FAU - Yin, Hua
AU  - Yin H
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China; Key Laboratory of Ministry of Education on Pollution 
      Control and Ecosystem Restoration in Industry Clusters, Guangzhou, 510006, China; 
      Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and 
      Recycling, Guangzhou, 510006, China. Electronic address: huayin@scut.edu.cn.
FAU - Wei, Xipeng
AU  - Wei X
AD  - Institute of Environmental and Ecological Engineering, Guangdong University of 
      Technology, Guangzhou, 510006, China.
FAU - Dang, Zhi
AU  - Dang Z
AD  - School of Environment and Energy, South China University of Technology, 
      Guangzhou, 510006, China; Key Laboratory of Ministry of Education on Pollution 
      Control and Ecosystem Restoration in Industry Clusters, Guangzhou, 510006, China; 
      Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and 
      Recycling, Guangzhou, 510006, China.
LA  - eng
PT  - Journal Article
DEP - 20220906
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Halogenated Diphenyl Ethers)
RN  - 0 (biochar)
RN  - 0N97R5X10X (2,2',4,4'-tetrabromodiphenyl ether)
RN  - 16291-96-6 (Charcoal)
SB  - IM
MH  - Bacteria/metabolism
MH  - Biodegradation, Environmental
MH  - Charcoal
MH  - *Halogenated Diphenyl Ethers/metabolism
MH  - Microbial Interactions
MH  - *Persistent Organic Pollutants
OTO - NOTNLM
OT  - Assembly process
OT  - Biochar
OT  - Biodegradation
OT  - Extracellular polymeric substances
OT  - Interaction network
OT  - Polybrominated diphenyl ethers
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/09/10 06:00
MHDA- 2022/10/14 06:00
CRDT- 2022/09/09 19:24
PHST- 2022/05/13 00:00 [received]
PHST- 2022/08/10 00:00 [revised]
PHST- 2022/09/02 00:00 [accepted]
PHST- 2022/09/10 06:00 [pubmed]
PHST- 2022/10/14 06:00 [medline]
PHST- 2022/09/09 19:24 [entrez]
AID - S0269-7491(22)01334-3 [pii]
AID - 10.1016/j.envpol.2022.120120 [doi]
PST - ppublish
SO  - Environ Pollut. 2022 Nov 15;313:120120. doi: 10.1016/j.envpol.2022.120120. Epub 
      2022 Sep 6.