Opportunistic pathogens exhibit distinct growth dynamics in rainwater and tap water storage systems.

Acanthamoeba Amoeba Legionella / genetics Legionella pneumophila Water Water Microbiology Water Supply
Opportunistic pathogens (OPs) Rainwater Simulated water storage systems (SWSSs) Tank materials Tap water

Journal

Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072

Informations de publication

Date de publication:
01 Oct 2021
Historique:
received: 17 05 2021
revised: 09 07 2021
accepted: 16 08 2021
pubmed: 31 8 2021
medline: 6 10 2021
entrez: 30 8 2021
Statut: ppublish

Résumé

Opportunistic pathogens (OPs) are emerging microbial contaminants in engineered water systems, yet their growth potential in rainwater systems has not been evaluated. The purpose of this study was to compare the growth dynamics of bacterial OPs and related genera (Pseudomonas aeruginosa, Legionella spp., L. pneumophila, Mycobacterium spp., and M. avium), two amoebal hosts (Acanthamoeba spp. and Vermamoeba vermiformis), and the fecal indicator Escherichia coli in simulated rainwater and tap water storage systems (SWSSs). Quantitative polymerase chain reaction (q-PCR) analysis of target microorganisms in SWSS influents and effluents demonstrated that P. aeruginosa and Legionella thrived in rainwater, but not in tap water. V. vermiformis proliferated in both rainwater and tap water polyvinyl chloride (PVC) SWSSs, while mycobacteria were largely absent in rainwater SWSSs. Tank materials exerted stronger influence on target microorganisms in rainwater SWSSs relative to tap water SWSSs, with species-specific responses noted in bulk water and biofilm. For instance, P. aeruginosa and V. vermiformis had the highest gene copy numbers in PVC rainwater SWSS effluents and biofilm, while Legionella peaked in stainless steel rainwater SWSS effluents and PVC rainwater SWSS biofilm. These results highlighted the OP contamination risks in rainwater storage systems and provided insights into rainwater system design and operation in terms of OP control.

Identifiants

DOI: 10.1016/j.watres.2021.117581 PMID: 34461496
pubmed: 34461496
pii: S0043-1354(21)00776-4
doi: 10.1016/j.watres.2021.117581
pii:
doi:

Substances chimiques

Water 059QF0KO0R

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

117581

Informations de copyright

Copyright © 2021. Published by Elsevier Ltd.

Auteurs

Xiaodong Zhang (X)

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Chengtou Water Group Corporation, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.

Siqing Xia (S)

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address: siqingxia@tongji.edu.cn.

Yinyin Ye (Y)

Department of Civil, Structural and Environmental Engineering, University at Buffalo, Buffalo, New York 14260, USA.

Hong Wang (H)

State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China. Electronic address: hongwang@tongji.edu.cn.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Amoebozoa › Lobosea › Amoebida › Acanthopodina › Acanthamoeba › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Eucaryotes › Amoebozoa › Lobosea › Amoebida › Tubulina › Amoeba › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Bactéries › Proteobacteria › Gammaproteobacteria › Legionellaceae › Legionella › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Bactéries › Proteobacteria › Gammaproteobacteria › Legionellaceae › Legionella › Legionella pneumophila › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Produits chimiques inorganiques › Composés de l'oxygène › Oxydes › Eau › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Microbiologie de l'environnement › Microbiologie de l'eau › Opportunistic pathogens exhibit distinct...
questionsmedicales.fr › Technologie, industrie et agriculture › Ingénierie › Alimentation en eau › Opportunistic pathogens exhibit distinct...