PMID- 30743828
OWN - NLM
STAT- MEDLINE
DCOM- 20190301
LR  - 20190301
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 644
DP  - 2018 Dec 10
TI  - Oxygen exposure deprives antimonate-reducing capability of a methane fed biofilm.
PG  - 1152-1159
LID - S0048-9697(18)32528-2 [pii]
LID - 10.1016/j.scitotenv.2018.07.047 [doi]
AB  - This work is aiming at achieving antimonate (Sb(V)) bio-reduction in a methane 
      (CH(4)) based membrane biofilm reactor (MBfR), and elucidating the effect of 
      oxygen (O(2)) on the performance of the biofilm. Scanning electron microscope 
      (SEM), energy dispersive X-ray (EDS) and X-ray photoelectron spectroscopy (XPS) 
      confirm Sb(2)O(3) precipitates were the main product formed from Sb(V) reduction 
      in the CH(4)-fed biofilm. Illumina sequencing shows Thermomonas may be 
      responsible for Sb(V) reduction. Moreover, we found 8 mg/L of O(2) in the 
      influent irreversibly inhibited Sb(V) reduction. Metagenomic prediction by 
      Reconstruction of Unobserved State (PICRUSt) shows that the biofilm lacked 
      efficient defense system to the oxidative stress, leading to the great suppress 
      of key biological metabolisms such as TCA cycle, glycolysis and DNA replication, 
      as well as potential Sb(V) reductases, by O(2). However, methanotrophs 
      Methylomonas and Methylosinus were enriched in the biofilm with O(2) intrusion, 
      in accordance with the enhanced abundance of genes encoding aerobic CH(4) 
      oxidation. These insights evoke the theoretical guidance of microbial remediation 
      using CH(4) as the electron donor towards Sb(V) contamination, and will give us a 
      strong reference with regard to wastewater disposal.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Lai, Chun-Yu
AU  - Lai CY
AD  - College of Environmental and Resource Science, Zhejiang University, Hangzhou, 
      China; Advanced Water Management Centre, The University of Queensland, St Lucia, 
      Queensland 4072, Australia.
FAU - Dong, Qiu-Yi
AU  - Dong QY
AD  - College of Environmental and Resource Science, Zhejiang University, Hangzhou, 
      China.
FAU - Zhao, He-Ping
AU  - Zhao HP
AD  - College of Environmental and Resource Science, Zhejiang University, Hangzhou, 
      China; Zhejiang Prov Key Lab Water Pollut Control & Envi, Zhejiang University, 
      Hangzhou, Zhejiang, China; MOE Key Lab of Environmental Remediation and Ecosystem 
      Health, College of Environmental and Resource Science, Zhejiang University, 
      Hangzhou 310058, China. Electronic address: zhaohp@zju.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20180711
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 39349-74-1 (antimonite)
RN  - 9IT35J3UV3 (Antimony)
RN  - OP0UW79H66 (Methane)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - Antimony/*metabolism
MH  - Biofilms
MH  - Bioreactors/*microbiology
MH  - Methane/*metabolism
MH  - Oxygen/metabolism
MH  - Waste Disposal, Fluid/methods
OTO - NOTNLM
OT  - Antimonate reduction
OT  - Biofilm
OT  - Methane
OT  - Oxygen
OT  - PICRUSt
EDAT- 2019/02/13 06:00
MHDA- 2019/03/02 06:00
CRDT- 2019/02/13 06:00
PHST- 2018/05/10 00:00 [received]
PHST- 2018/07/03 00:00 [revised]
PHST- 2018/07/03 00:00 [accepted]
PHST- 2019/02/13 06:00 [entrez]
PHST- 2019/02/13 06:00 [pubmed]
PHST- 2019/03/02 06:00 [medline]
AID - S0048-9697(18)32528-2 [pii]
AID - 10.1016/j.scitotenv.2018.07.047 [doi]
PST - ppublish
SO  - Sci Total Environ. 2018 Dec 10;644:1152-1159. doi: 
      10.1016/j.scitotenv.2018.07.047. Epub 2018 Jul 11.