Biofilm formation and multiplication of Legionella in a model warm water system with pipes of copper, stainless steel and cross-linked polyethylene

Kooij, D. van der; Veenendaal, Harm R.; Scheffer, W J.H.

doi:10.1016/j.watres.2005.04.075

Cited by 171 publications

(131 citation statements)

References 23 publications

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“…are more susceptible to residual chlorine in potable water. Although intracellular growth within amoeba was frequently reported essential for their resistance to chlorination stress and persistence in DSs, some studies showed that residual chlorine could exert negative impacts on the growth of Legionella spp., and in some cases Legionella bacteria outnumbered mycobacteria in DS biofilms under low disinfection levels but different in turn under heavy disinfection stress (Pryor et al, 2004;van der Kooij et al, 2005). Considering the consumption of chlorine during the corrosion process, low-chlorine or even chlorine-free niches might extensively exist in the cast iron biofilm, resulting in the higher occurrence of Legionella species.…”

Section: Bacterial Communitiesmentioning

confidence: 99%

Molecular analysis of long-term biofilm formation on PVC and cast iron surfaces in drinking water distribution system

Liu

Zhu

et al. 2014

Journal of Environmental Sciences

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a b s t r a c tTo understand the impacts of different plumbing materials on long-term biofilm formation in water supply system, we analyzed microbial community compositions in the bulk water and biofilms on faucets with two different materials-polyvinyl chloride (PVC) and cast iron, which have been frequently used for more than10 years. Pyrosequencing was employed to describe both bacterial and eukaryotic microbial compositions. Bacterial communities in the bulk water and biofilm samples were significantly different from each other. Specific bacterial populations colonized on the surface of different materials. Hyphomicrobia and corrosion associated bacteria, such as Acidithiobacillus spp., Aquabacterium spp., Limnobacter thiooxidans, and Thiocapsa spp., were the most dominant bacteria identified in the PVC and cast iron biofilms, respectively, suggesting that bacterial colonization on the material surfaces was selective. Mycobacteria and Legionella spp. were common potential pathogenic bacteria occurred in the biofilm samples, but their abundance was different in the two biofilm bacterial communities. In contrast, the biofilm samples showed more similar eukaryotic communities than the bulk water. Notably, potential pathogenic fungi, i.e., Aspergillus spp. and Candida parapsilosis, occurred in similar abundance in both biofilms. These results indicated that microbial community, especially bacterial composition was remarkably affected by the different pipe materials (PVC and cast iron).

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Section: Bacterial Communitiesmentioning

confidence: 99%

Molecular analysis of long-term biofilm formation on PVC and cast iron surfaces in drinking water distribution system

Liu

Zhu

et al. 2014

Journal of Environmental Sciences

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“…The chemical functionality and mechanical compliance of such films can be adjusted by simple variations of the layer-by-layer assembly conditions, such as choice of polyanion/polycation or assembly pH, 33 and can be applied to a wide range of surfaces requiring biofilm prevention, including polymers, glasses, 39 and metals. 13 The effective elastic modulus E or stiffness of such hydrated films under in vitro culture conditions can be varied over several orders of magnitude by manipulation of assembly pH.…”

Section: Introductionmentioning

confidence: 99%

Substrata Mechanical Stiffness Can Regulate Adhesion of Viable Bacteria

et al. 2008

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The competing mechanisms that regulate adhesion of bacteria to surfaces and subsequent biofilm formation remain unclear, though nearly all studies have focused on the role of physical and chemical properties of the material surface. Given the large monetary and health costs of medical-device colonization and hospital-acquired infections due to bacteria, there is considerable interest in better understanding of material properties that can limit bacterial adhesion and viability. Here we employ weak polyelectrolyte multilayer (PEM) thin films comprised of poly(allylamine) hydrochloride (PAH) and poly(acrylic acid) (PAA), assembled over a range of conditions, to explore the physicochemical and mechanical characteristics of material surfaces controlling adhesion of Staphylococcus epidermidis bacteria and subsequent colony growth. Although it is increasingly appreciated that eukaryotic cells possess subcellular structures and biomolecular pathways to sense and respond to local chemomechanical environments, much less is known about mechanoselective adhesion of prokaryotes such as these bacteria. We find that adhesion of viable S. epidermidis correlates positively with the stiffness of these polymeric substrata, independently of the roughness, interaction energy, and charge density of these materials. Quantitatively similar trends observed for wild-type and actin analogue mutant Escherichia coli suggest that these results are not confined to only specific bacterial strains, shapes, or cell envelope types. These results indicate the plausibility of mechanoselective adhesion mechanisms in prokaryotes and suggest that mechanical stiffness of substrata materials represents an additional parameter that can regulate adhesion of and subsequent colonization by viable bacteria.

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“…These bacteria are ubiquitous in natural and anthropogenic environments and are often isolated from tap water [10]. In the study of Vaz-Moreira et al, 25.6% of the Sphingomonadaceae isolates revealed resistance to cirpofolxacin. Particularly, from 12 Blastomonas natatoria and 12 Novosphingobium spp.…”

Section: Biodiversity Of Fluoroquinolone Resistant Bacteriamentioning

confidence: 99%

“…Unfortunately, little is known about the biodiversity and microbial ecology of hot-tap water samples. Usually, these types of samples are investigated in terms of the presence of Legionella microbiome [25,26]. Nevertheless, Blastomonas and Novosphingobium were not detected in warm water biofilm samples collected from shower hoses [27].…”

Section: Biodiversity Of Bacteria Forming Biofilm In Cold-and Hot-tapmentioning

confidence: 99%

Application of NGS for studying the antibiotic resistant microbiome in Wrocław tap water

Siedlecka

Piekarska

2018

E3S Web Conf.

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Abstract. The NGS method was used to investigate the biodiversity of ARB dwelling in tap water, able to form biofilm on bullion media supplemented with antibiotics: β-lactam, fluoroquinolone, 3 rd generation cephalosporin and tetracycline. Biofilms formed by cold-and hot-tap water microorganisms were also examined. The presence of 10 ARGs in plasmid DNA of cultivated biomass was tested using a standard PCR. The analyses revealed that the most predominant families were Sphingomonadaceae, Paenibacillaceae, Enterobacteriaceae, Bacillaceae and Sphingomonadaceae in FQ, C3G, T, C-W and H-W samples, respectively (explanations of abbreviations in the text). The ARGs did not correlate with resistance phenotypes.

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Biofilm formation and multiplication of Legionella in a model warm water system with pipes of copper, stainless steel and cross-linked polyethylene

Cited by 171 publications

References 23 publications

Molecular analysis of long-term biofilm formation on PVC and cast iron surfaces in drinking water distribution system

Molecular analysis of long-term biofilm formation on PVC and cast iron surfaces in drinking water distribution system

Substrata Mechanical Stiffness Can Regulate Adhesion of Viable Bacteria

Application of NGS for studying the antibiotic resistant microbiome in Wrocław tap water

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