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    Bacterial cell numbers and community structures of seawater biofilms depend on the attachment substratum

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    Yap et al. DWT.PDF
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    Type
    Article
    Authors
    Yap, Scott cc
    Scarascia, Giantommaso cc
    Hong, Pei-Ying cc
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    Water Desalination and Reuse Research Center (WDRC)
    KAUST Grant Number
    URF/1/2982-01-01
    Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/627031
    
    Metadata
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    Abstract
    Seawater is increasingly being used as a source for various industrial applications. For such applications, biofilm growth creates various problems including but not limited to pipe biocorrosion. In this study, it is hypothesized that the material type is preferred by certain bacterial populations in the seawater to attach and establish biofilms. By comparing differences in the total cell counts and microbial communities attached to high-density polyethylene (HDPE), polycarbonate, stainless steel (SS316) and titanium, the appropriate material can be used to minimize biofilm growth. All four materials have hydrophilic surfaces, but polycarbonate exhibits higher surface roughness. There were no significant differences in the cell numbers attached to polycarbonate, HDPE and titanium. Instead, there were significantly fewer cells attached to SS316. However, there was a higher relative abundance of genera associated with opportunistic pathogens on SS316. Copy numbers of genes representing Desulfobacteraceae and Desulfobulbaceae, both of which are sulfate-reducing bacteria (SRB), were approximately 10-fold higher in biofilms sampled from SS316. The enrichment of SRB in the biofilm associated with SS316 indicates that this material may be prone to biocorrosion. This study highlights the need for industries to consider the choice of material used in seawater applications to minimize microbial-associated problems.
    Citation
    Yap SA, Scarascia G, Hong P-Y (2017) Bacterial cell numbers and community structures of seawater biofilms depend on the attachment substratum. DESALINATION AND WATER TREATMENT 97: 41–71. Available: http://dx.doi.org/10.5004/dwt.2017.21600.
    Sponsors
    The research reported in this publication was supported by CRG funding URF/1/2982-01-01 from King Abdullah University of Science and Technology (KAUST) awarded to P.-Y. Hong.
    Publisher
    Desalination Publications
    Journal
    DESALINATION AND WATER TREATMENT
    DOI
    10.5004/dwt.2017.21600
    Additional Links
    http://www.deswater.com/DWT_abstracts/vol_97/97_2017_41.pdf
    ae974a485f413a2113503eed53cd6c53
    10.5004/dwt.2017.21600
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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