Symbiosis of sulfate-reducing bacteria and methanogenic archaea in sewer systems.

Archaea / genetics Bacteria Sewage Sulfates Symbiosis
Ecological system Methanogenic archaea Sulfate-reducing bacteria Symbiosis mechanism Urban sewer system

Journal

Environment international
ISSN: 1873-6750
Titre abrégé: Environ Int
Pays: Netherlands
ID NLM: 7807270

Informations de publication

Date de publication:
10 2020
Historique:
received: 21 04 2020
revised: 20 06 2020
accepted: 20 06 2020
pubmed: 8 7 2020
medline: 12 1 2021
entrez: 8 7 2020
Statut: ppublish

Résumé

Sulfide and methane emissions always simultaneously exist in natural environment and constitute a major topic of societal concern. However, the metabolic environments between sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) exist a great difference, which seems to be opposite to the coexisting phenomenon. To explore this issue, the comprehensive biofilm structures, substrate consuming and metabolism pathways of SRB and MA were investigated in a case study of urban sewers. The results showed that, due to the stricter environmental requirements of MA than SRB, SRB became the preponderant microorganism which promoted the rapid generation of sulfide in the initial period of biofilm formation. According to a metagenomic analysis, the SRB appeared to be more preferential than MA in sewers, and the preponderant SRB could provide a key medium (Methyl-coenzyme M) for methane metabolism. Therefore, the diversity of MA gradually increased, and the symbiosis system formed preliminarily. In addition, via L-cysteine, methane metabolism also participated in sulfide consumption which was involved in cysteine and methionine metabolism. This phenomenon of sulfide consumption led to the forward reaction of sulfide metabolism, which could promote sulfide generation while stabilizing the pH value (H

Identifiants

DOI: 10.1016/j.envint.2020.105923 PMID: 32634668
pubmed: 32634668
pii: S0160-4120(20)31878-X
doi: 10.1016/j.envint.2020.105923
pii:
doi:

Substances chimiques

Sewage 0
Sulfates 0

Types de publication

Journal Article Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

105923

Informations de copyright

Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.

Auteurs

Xuan Shi (X)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China.

Ge Gao (G)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China.

Jiameng Tian (J)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China.

Xiaochang C Wang (XC)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China; Northwest China Key Laboratory of Water Resources and Environment Ecology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China.

Xin Jin (X)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China.

Pengkang Jin (P)

School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China; Northwest China Key Laboratory of Water Resources and Environment Ecology, Xi'an University of Architecture and Technology, Xi'an, Shaanxi Province 710055, China. Electronic address: pkjin@hotmail.com.

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Classifications MeSH

questionsmedicales.fr › Archéobactéries › Symbiosis of sulfate-reducing bacteria and...
questionsmedicales.fr › Bactéries › Symbiosis of sulfate-reducing bacteria and...
questionsmedicales.fr › Mélanges complexes › Eaux d'égout › Symbiosis of sulfate-reducing bacteria and...
questionsmedicales.fr › Produits chimiques inorganiques › Sulfates › Symbiosis of sulfate-reducing bacteria and...
questionsmedicales.fr › Phénomènes biologiques › Symbiose › Symbiosis of sulfate-reducing bacteria and...