Eradication of the corrosion-causing bacterial strains Desulfovibrio vulgaris and Desulfovibrio desulfuricans in planktonic and biofilm form using photodisinfection

Street, Cale N.; Gibbs, Aaron

doi:10.1016/j.corsci.2009.12.022

Cited by 20 publications

(7 citation statements)

References 33 publications

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“…vulgaris have been extensively shown to cause corrosion in many types of steels and other alloys. 11 The biofilms of D . vulgaris consists primarily of protein, 5 mannose, 6 fucose, 6 and N -acetylgalactosamine.…”

Section: Introductionmentioning

confidence: 99%

Rhamnolipids from Pseudomonas aeruginosa disperse the biofilms of sulfate-reducing bacteria

Wood

Gong

Zhu

et al. 2018

npj Biofilms Microbiomes

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Biofilm formation is an important problem for many industries. Desulfovibrio vulgaris is the representative sulfate-reducing bacterium (SRB) which causes metal corrosion in oil wells and drilling equipment, and the corrosion is related to its biofilm formation. Biofilms are extremely difficult to remove since the cells are cemented in a polymer matrix. In an effort to eliminate SRB biofilms, we examined the ability of supernatants from Pseudomonas aeruginosa PA14 to disperse SRB biofilms. We found that the P. aeruginosa supernatants dispersed more than 98% of the biofilm. To determine the biochemical basis of this SRB biofilm dispersal, we examined a series of P. aeruginosa mutants and found that mutants rhlA, rhlB, rhlI, and rhlR, defective in rhamnolipids production, had significantly reduced levels of SRB biofilm dispersal. Corroborating these results, purified rhamnolipids dispersed SRB biofilms, and rhamnolipids were detected in the P. aeruginosa supernatants. Hence, P. aeruginosa supernatants disperse SRB biofilms via rhamnolipids. To determine the genetic basis of how the P. aeruginosa supernatants disperse SRB biofilms, a whole transcriptomic analysis was conducted (RNA-seq); based on this analysis, we identified four proteins (DVUA0018, DVUA0034, DVUA0066, and DVUA0084) of the D. vulgaris megaplasmid that influence biofilm formation, with production of DVUA0066 (a putative phospholipase) reducing biofilm formation 5.6-fold. In addition, the supernatants of P. aeruginosa dispersed the SRB biofilms more readily than protease in M9 glucose minimum medium and were also effective against biofilms of Escherichia coli and Staphylococcus aureus.

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Section: Introductionmentioning

confidence: 99%

Rhamnolipids from Pseudomonas aeruginosa disperse the biofilms of sulfate-reducing bacteria

Wood

Gong

Zhu

et al. 2018

npj Biofilms Microbiomes

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“…7-8-log reduction in the bacterial isolates was observed after 60-270 minutes of irradiation. In another interesting scope of application RB, MB, safranin, and toluidine blue were employed to treat corrosion producing biofilms and planktonic bacteria on oil and gas pipelines [120]. Desulfovibrio vulgaris and Desulfovibrio desulfuricans are well known for aggravating corrosion on steel and other alloys.…”

Section: Other Environmental Applicationsmentioning

confidence: 99%

Phototreatment of Water by Organic Photosensitizers and Comparison with Inorganic Semiconductors

Thandu

Comuzzi

Goi

2015

International Journal of Photoenergy

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Phototreatment of water is drawing the attention of many as a promising alternative to replace methods like chlorination, ozonization, and other oxidation processes, used in current disinfection methods limiting harmful side-products and by-products that can cause damage to the fauna and flora. Porphyrins, phthalocyanines, and other related organic dyes are well known for their use in photodynamic therapy (PDT). These photosensitizers cause cell death by generating reactive oxygen species (ROS) especially singlet oxygen in the presence of light. Such molecules are also being explored for photodynamically treating microbial infections, killing of unwanted pathogens in the environment, and oxidation of chemical pollutants. The process of photosensitisation (phototreatment) can be applied for obtaining clean, microbe-free water, thus exploiting the versatile properties of photosensitizers. This review collects the various attempts carried out for phototreatment of water using organic photosensitizers. For comparison, some reports of semiconductors (especially TiO2) used in photocatalytic treatment of water are also mentioned.

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“…Macroorganisms interact with the biofilm and colonize on the surface [8,9], and the resultant growth of macroorganisms is a major industrial problem causing the corrosion of offshore structures [10,11]. The attachment of fouling organisms and their metabolites can modify the physicochemical properties of metal surfaces and create microenvironments, which can influence the corrosion process by changing the cathodic or anodic reactions [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

et al. 2020

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An understanding of the interaction of calcareous deposits and biofoulants on the corrosion performance of steel during the fouling stage is both interesting and necessary. So, the effects of these factors on Q235 carbon steel were investigated and discussed for 20 weeks under real ocean conditions. The results indicate that calcareous deposits are favorable for the attachment of marine microorganisms. However, macroorganisms prefer adhering directly to the substrate. The generations of calcareous deposits have priority over the biofilm attachment under the condition of cathodic protection. Calcareous deposits can prevent steel against corrosion for four weeks without cathodic protection.

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Eradication of the corrosion-causing bacterial strains Desulfovibrio vulgaris and Desulfovibrio desulfuricans in planktonic and biofilm form using photodisinfection

Cited by 20 publications

References 33 publications

Rhamnolipids from Pseudomonas aeruginosa disperse the biofilms of sulfate-reducing bacteria

Rhamnolipids from Pseudomonas aeruginosa disperse the biofilms of sulfate-reducing bacteria

Phototreatment of Water by Organic Photosensitizers and Comparison with Inorganic Semiconductors

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

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