The role of biofilms in the corrosion of steel in marine environments

Procópio, Luciano

doi:10.1007/s11274-019-2647-4

Cited by 78 publications

(41 citation statements)

References 42 publications

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“…In aquatic environments, microorganisms either follow a planktonic lifestyle, floating or swimming in the water column, or switch to an attached state by forming biofilms on all kinds of natural or artificially introduced surfaces, e.g., steel and microplastics [ 1 , 2 , 3 ]. While biotic surfaces as such provide a source of organic matter, the same is also true for abiotic surfaces as soon as polar and hydrophobic materials start to accumulate on these submerged surfaces [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Bacterial Communities on North Sea Macroalgae and Characterization of the Isolated Planctomycetes Adhaeretor mobilis gen. nov., sp. nov., Roseimaritima multifibrata sp. nov., Rosistilla ulvae sp. nov. and Rubripirellula lacrimiformis sp. nov.

Wiegand

Rast²,

Kallscheuer

et al. 2021

Microorganisms

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Planctomycetes are bacteria that were long thought to be unculturable, of low abundance, and therefore neglectable in the environment. This view changed in recent years, after it was shown that members of the phylum Planctomycetes can be abundant in many aquatic environments, e.g., in the epiphytic communities on macroalgae surfaces. Here, we analyzed three different macroalgae from the North Sea and show that Planctomycetes is the most abundant bacterial phylum on the alga Fucus sp., while it represents a minor fraction of the surface-associated bacterial community of Ulva sp. and Laminaria sp. Especially dominant within the phylum Planctomycetes were Blastopirellula sp., followed by Rhodopirellula sp., Rubripirellula sp., as well as other Pirellulaceae and Lacipirellulaceae, but also members of the OM190 lineage. Motivated by the observed abundance, we isolated four novel planctomycetal strains to expand the collection of species available as axenic cultures since access to different strains is a prerequisite to investigate the success of planctomycetes in marine environments. The isolated strains constitute four novel species belonging to one novel and three previously described genera in the order Pirellulales, class Planctomycetia, phylum Planctomycetes.

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Section: Introductionmentioning

confidence: 99%

Analysis of Bacterial Communities on North Sea Macroalgae and Characterization of the Isolated Planctomycetes Adhaeretor mobilis gen. nov., sp. nov., Roseimaritima multifibrata sp. nov., Rosistilla ulvae sp. nov. and Rubripirellula lacrimiformis sp. nov.

Wiegand

Rast²,

Kallscheuer

et al. 2021

Microorganisms

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“…The results and discussion described above demonstrate the structures of bacterial communities involved in carbon steel corrosion and present the presence of members of different classes of Proteobacteria phylum. A possible explanation would be the initial role of colonization of the metal surface by these members and the consequent maintenance of the biofilm structure, which has important consequences for the development of the biofilm and the maintenance of favorable conditions inside it (Dang et al 2011;Li et al 2017;Procópio 2019).…”

Section: Discussionmentioning

confidence: 99%

“…The presence of microorganisms over metal surfaces and their consequent attack occurs through bacterial biofilm structures. Biofilms are a complex formed by bacteria and extracellular compounds, such as proteins, DNA, polysaccharides, and metabolites (Procópio 2019). Biofilm formation is a process widely found on different inanimate or organic surfaces, under different environmental conditions that influence their presence and persistence.…”

Section: Introductionmentioning

confidence: 99%

Microbial community profiles grown on 1020 carbon steel surfaces in seawater-isolated microcosm

Procópio

2020

Ann Microbiol

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Corrosion of metallic alloys is a concern worldwide, with impacts affecting different production sectors and consequent economic losses in the order of billions of dollars annually. Biocorrosion is a form of corrosion where the participation of microorganisms can induce, accelerate, or inhibit corrosive processes. In this study, it was evaluated that the changes in profile communities, by the sequencing of the 16S ribosomal gene, grown over steel coupons in a microcosm with no additional oxygen supplementation for 120 days. Analysis of abundance and diversity indices indicates marked changes in microbial structures throughout the 120-day period. Homology results of OTUs generated by Illumina sequencing indicated Proteobacteria phylum as the dominant group, comprising about 85.3% of the total OTUs, followed by Firmicutes and Bacteriodetes, both with 7.35%. Analyses at lower taxonomic levels suggested the presence of representatives described as corroders, such as Citreicella thiooxidans, Thalassospira sp., and Limnobacter thiooxidans. In conclusion, the results suggest that no additional oxygen supplementation profoundly altered the core of microbial communities, with a predominance of facultative anaerobic species.

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“…The first stage is associated with the transfer of microorganisms to the surface of various materials and metal structures [2]. This is followed by the adsorption of microorganisms on the surfaces of structures with the subsequent formation of microcolonies and biofilms [3,4]. This process is accompanied by the release into the external environment of corrosive products of microbial metabolism: acids (organic and inorganic), exopolysaccharides, hydrogen sulfide, various enzymes, etc.…”

Section: Introductionmentioning

confidence: 99%

Study of corrosion-active microorganisms of the coastal zone of the Baltic and Barents seas

et al. 2020

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The composition of microbial communities in coastal zones in the area of Kislogubskaya tidal power plant (the Barents Sea) and near Saint Petersburg Flood Prevention Facility Complex in the Gulf of Finland (Baltic Sea) was studied. The enrichment and pure cultures of microorganisms of various groups (sulfate-reducing, sulfur-oxidizing, nitrifying, ammonifying and iron-oxidizing bacteria) have been isolated, their cultural and physiological-biochemical properties, as well as their ability to induce corrosion of different materials used in the construction of hydraulic structures, have been studied.

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The role of biofilms in the corrosion of steel in marine environments

Cited by 78 publications

References 42 publications

Analysis of Bacterial Communities on North Sea Macroalgae and Characterization of the Isolated Planctomycetes Adhaeretor mobilis gen. nov., sp. nov., Roseimaritima multifibrata sp. nov., Rosistilla ulvae sp. nov. and Rubripirellula lacrimiformis sp. nov.

Analysis of Bacterial Communities on North Sea Macroalgae and Characterization of the Isolated Planctomycetes Adhaeretor mobilis gen. nov., sp. nov., Roseimaritima multifibrata sp. nov., Rosistilla ulvae sp. nov. and Rubripirellula lacrimiformis sp. nov.

Microbial community profiles grown on 1020 carbon steel surfaces in seawater-isolated microcosm

Study of corrosion-active microorganisms of the coastal zone of the Baltic and Barents seas

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