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Biofilm development in the extremely acidophilic archaeon 'Ferroplasma acidarmanus' Fer1
Umeå University, Faculty of Science and Technology, Department of Molecular Biology (Faculty of Science and Technology).
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2010 (English)In: Extremophiles, ISSN 1431-0651, E-ISSN 1433-4909, Vol. 14, no 6, 485-491 p.Article in journal (Refereed) Published
Abstract [en]

'Ferroplasma acidarmanus' Fer1 is an ironoxidizing extreme acidophile isolated from the Iron Mountain mine, California, USA This archaeon is predominantly found in biofilm-associated structures in the environment, and produces two distinct biofilm morphologies Bioinformatic analysis of the acidarmanus' Fer1 genome Identified genes annotated as involved in attachment and biofilm formation No putative quorum sensing signaling genes were identified and no N-acyl homoserine lactone-like compounds were found in acidarmanus' Fer1 biofilm supernatant Scanning confocal microscopy analysis of biofilm development on the surface of pyrite demonstrated the temporal and spatial development of biofilm growth Furthermore, two-dimensional polyacrylamide gel electrophoresis was used to examine differential protein expression patterns between biofilm and planktonic populations Ten up-regulated proteins were identified that included six enzymes associated with anaerobic growth, suggesting that the dominating phenotype in the mature biofilm was associated with anaerobic modes of growth This report increases our knowledge of the genetic and proteomic basis of biofilm formation in an extreme acidophilic archaeon.

Place, publisher, year, edition, pages
Springer, 2010. Vol. 14, no 6, 485-491 p.
Keyword [en]
Fetroplasma, Archaea, Acidophile, Biofilm, Confocal microscopy
National Category
Biochemistry and Molecular Biology Microbiology
Identifiers
URN: urn:nbn:se:umu:diva-109729DOI: 10.1007/s00792-010-0328-1ISI: 000285905500002PubMedID: 20835877OAI: oai:DiVA.org:umu-109729DiVA: diva2:859108
Available from: 2015-10-06 Created: 2015-10-05 Last updated: 2017-12-01Bibliographically approved

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