The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/130463 |
Resumo: | Understanding the conditions affecting cyanobacterial biofilm development is crucial to develop new antibiofouling strategies and decrease the economic and environmental impact of biofilms in marine settings. In this study, we investigated the relative importance of shear forces and surface hydrophobicity on biofilm development by two coccoid cyanobacteria with different biofilm formation capacities. The strong biofilm-forming Synechocystis salina was used along with the weaker biofilm-forming Cyanobium sp. Biofilms were developed in defined hydrodynamic conditions using glass (a model hydrophilic surface) and a polymeric epoxy coating (a hydrophobic surface) as substrates. Biofilms developed in both surfaces at lower shear conditions contained a higher number of cells and presented higher values for wet weight, thickness, and chlorophyll a content. The impact of hydrodynamics on biofilm development was generally stronger than the impact of surface hydrophobicity, but a combined effect of these two parameters strongly affected biofilm formation for the weaker biofilm-producing organism. The antibiofilm performance of the polymeric coating was confirmed at the hydrodynamic conditions prevailing in ports. Shear forces were shown to have a profound impact on biofilm development in marine settings regardless of the fouling capacity of the existing flora and the hydrophobicity of the surface. |
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The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteriaBiofilm formationCoccoid cyanobacteriaHydrodynamic conditionsMarine biofoulingPolymer coatingSurface hydrophobicityUnderstanding the conditions affecting cyanobacterial biofilm development is crucial to develop new antibiofouling strategies and decrease the economic and environmental impact of biofilms in marine settings. In this study, we investigated the relative importance of shear forces and surface hydrophobicity on biofilm development by two coccoid cyanobacteria with different biofilm formation capacities. The strong biofilm-forming Synechocystis salina was used along with the weaker biofilm-forming Cyanobium sp. Biofilms were developed in defined hydrodynamic conditions using glass (a model hydrophilic surface) and a polymeric epoxy coating (a hydrophobic surface) as substrates. Biofilms developed in both surfaces at lower shear conditions contained a higher number of cells and presented higher values for wet weight, thickness, and chlorophyll a content. The impact of hydrodynamics on biofilm development was generally stronger than the impact of surface hydrophobicity, but a combined effect of these two parameters strongly affected biofilm formation for the weaker biofilm-producing organism. The antibiofilm performance of the polymeric coating was confirmed at the hydrodynamic conditions prevailing in ports. Shear forces were shown to have a profound impact on biofilm development in marine settings regardless of the fouling capacity of the existing flora and the hydrophobicity of the surface.MDPI20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/130463engISSN 2073-4360https://doi.org/10.3390/polym12030653Faria, S.I.Teixeira-Santos, R.Romeu, M.J.Morais, J.Vasconcelos, V.Mergulhão, F.J.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:05:36Zoai:repositorio-aberto.up.pt:10216/130463Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:54:35.639186Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
title |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
spellingShingle |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria Faria, S.I. Biofilm formation Coccoid cyanobacteria Hydrodynamic conditions Marine biofouling Polymer coating Surface hydrophobicity |
title_short |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
title_full |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
title_fullStr |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
title_full_unstemmed |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
title_sort |
The relative importance of shear forces and surface hydrophobicity on biofilm formation by coccoid cyanobacteria |
author |
Faria, S.I. |
author_facet |
Faria, S.I. Teixeira-Santos, R. Romeu, M.J. Morais, J. Vasconcelos, V. Mergulhão, F.J. |
author_role |
author |
author2 |
Teixeira-Santos, R. Romeu, M.J. Morais, J. Vasconcelos, V. Mergulhão, F.J. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Faria, S.I. Teixeira-Santos, R. Romeu, M.J. Morais, J. Vasconcelos, V. Mergulhão, F.J. |
dc.subject.por.fl_str_mv |
Biofilm formation Coccoid cyanobacteria Hydrodynamic conditions Marine biofouling Polymer coating Surface hydrophobicity |
topic |
Biofilm formation Coccoid cyanobacteria Hydrodynamic conditions Marine biofouling Polymer coating Surface hydrophobicity |
description |
Understanding the conditions affecting cyanobacterial biofilm development is crucial to develop new antibiofouling strategies and decrease the economic and environmental impact of biofilms in marine settings. In this study, we investigated the relative importance of shear forces and surface hydrophobicity on biofilm development by two coccoid cyanobacteria with different biofilm formation capacities. The strong biofilm-forming Synechocystis salina was used along with the weaker biofilm-forming Cyanobium sp. Biofilms were developed in defined hydrodynamic conditions using glass (a model hydrophilic surface) and a polymeric epoxy coating (a hydrophobic surface) as substrates. Biofilms developed in both surfaces at lower shear conditions contained a higher number of cells and presented higher values for wet weight, thickness, and chlorophyll a content. The impact of hydrodynamics on biofilm development was generally stronger than the impact of surface hydrophobicity, but a combined effect of these two parameters strongly affected biofilm formation for the weaker biofilm-producing organism. The antibiofilm performance of the polymeric coating was confirmed at the hydrodynamic conditions prevailing in ports. Shear forces were shown to have a profound impact on biofilm development in marine settings regardless of the fouling capacity of the existing flora and the hydrophobicity of the surface. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10216/130463 |
url |
https://hdl.handle.net/10216/130463 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
ISSN 2073-4360 https://doi.org/10.3390/polym12030653 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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