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Biofilm development in the extremely acidophilic archaeon 'Ferroplasma acidarmanus' Fer1.
University of East Anglia, UK ; Cefas Weymouth Laboratory, Dorset, UK.
Umeå University.
University of East Anglia, UK.
University of East Anglia, UK ; University of Queensland, Brisbane, Australia.
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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 iron-oxidizing 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 'F. 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 'F. 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
2010. Vol. 14, no 6, 485-491 p.
National Category
Microbiology
Research subject
Natural Science, Microbiology
Identifiers
URN: urn:nbn:se:lnu:diva-37345DOI: 10.1007/s00792-010-0328-1ISI: 000285905500002PubMedID: 20835877OAI: oai:DiVA.org:lnu-37345DiVA: diva2:750400
Available from: 2014-09-29 Created: 2014-09-29 Last updated: 2016-11-30Bibliographically approved

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CiteExportLink to record
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Citation style
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