PMID- 36427829
OWN - NLM
STAT- MEDLINE
DCOM- 20221205
LR  - 20221205
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 316
IP  - Pt 2
DP  - 2023 Jan 1
TI  - Influence of microplastics on microbial anaerobic detoxification of 
      chlorophenols.
PG  - 120707
LID - S0269-7491(22)01921-2 [pii]
LID - 10.1016/j.envpol.2022.120707 [doi]
AB  - Microplastics (MPs) can absorb halogenated organic compounds and transport them 
      into marine anaerobic zones. Microbial reductive dehalogenation is a major 
      process that naturally attenuates organohalide pollutants in anaerobic 
      environments. Here, we aimed to determine the mechanisms through which MPs affect 
      the microbe-mediated marine halogen cycle by incubating 2,4,6-trichlorophenol 
      (TCP) dechlorinating cultures with various types of MPs. We found that TCP was 
      dechlorinated to 4-chlorophenol in biotic control and polypropylene (PP) 
      cultures, but essentially terminated at 2,4-dichlorophenol in polyethylene (PE) 
      and polyethylene terephthalate (PET) cultures after incubation for 20 days. 
      Oxygen-containing functional groups such as peroxide and aldehyde were enriched 
      on PE and PET after incubation and corresponded to elevated levels of 
      intracellular reactive oxygen species (ROS) in the microorganisms. Adding PE or 
      PET to the cultures exerted limited effects on hydrogenase and ATPase activities, 
      but delayed the expression of the gene encoding reductive dehalogenase (RDase). 
      Considering the limited changes in the microbial composition of the enriched 
      cultures, these findings suggested that microbial dechlorination is probably 
      affected by MPs through the ROS-induced inhibition of RDase synthesis and/or 
      activity. Overall, our findings showed that extensive MP pollution is unfavorable 
      to environmental xenobiotic detoxification.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Deng, Zhaochao
AU  - Deng Z
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Zhang, Ning
AU  - Zhang N
AD  - Department of Environmental Engineering, School of Chemical Engineering and 
      Pharmacy, Henan University of Science and Technology, Luoyang, 471000, Henan, 
      China.
FAU - Jiang, Lijia
AU  - Jiang L
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Liu, Hui
AU  - Liu H
AD  - Shengzhou Bureau of Agriculture and Rural Affairs, Shaoxing, 312400, Zhejiang, 
      China.
FAU - Hu, Songtao
AU  - Hu S
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Zhang, Dongdong
AU  - Zhang D
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Chen, Bairu
AU  - Chen B
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Liu, Qing
AU  - Liu Q
AD  - The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution 
      Control, Guilin University of Technology, Guilin, 541006, Guangxi, China.
FAU - Sun, Yuxia
AU  - Sun Y
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Chen, Jiawang
AU  - Chen J
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China.
FAU - Zhang, Chunfang
AU  - Zhang C
AD  - Institute of Marine Biology and Pharmacology, Ocean College, Zhejiang University, 
      Zhoushan, 316021, Zhejiang, China. Electronic address: zhangcf@zju.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20221122
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Microplastics)
RN  - 0 (Plastics)
RN  - 0 (Reactive Oxygen Species)
RN  - 0 (Chlorophenols)
RN  - 9002-88-4 (Polyethylene)
RN  - 0 (Polyethylene Terephthalates)
SB  - IM
MH  - *Microplastics
MH  - Plastics
MH  - Anaerobiosis
MH  - Reactive Oxygen Species
MH  - *Chlorophenols/toxicity
MH  - Polyethylene
MH  - Polyethylene Terephthalates
OTO - NOTNLM
OT  - Enzyme activity
OT  - Halogen cycle
OT  - Microbial anaerobic dehalogenation
OT  - Microbial community
OT  - Microplastic
OT  - Reactive oxygen species
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- 2022/11/26 06:00
MHDA- 2022/12/06 06:00
CRDT- 2022/11/25 19:32
PHST- 2022/08/18 00:00 [received]
PHST- 2022/11/10 00:00 [revised]
PHST- 2022/11/18 00:00 [accepted]
PHST- 2022/11/26 06:00 [pubmed]
PHST- 2022/12/06 06:00 [medline]
PHST- 2022/11/25 19:32 [entrez]
AID - S0269-7491(22)01921-2 [pii]
AID - 10.1016/j.envpol.2022.120707 [doi]
PST - ppublish
SO  - Environ Pollut. 2023 Jan 1;316(Pt 2):120707. doi: 10.1016/j.envpol.2022.120707. 
      Epub 2022 Nov 22.