| Autotrophic, sulfur-oxidizing actinobacteria in acidic environments. | |
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MedLine Citation:
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PMID: 21308384 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Some novel actinobacteria from geothermal environments were shown to grow autotrophically with sulfur as an energy source. These bacteria have not been formally named and are referred to here as "Acidithiomicrobium" species, as the first of the acidophilic actinobacteria observed to grow on sulfur. They are related to Acidimicrobium ferrooxidans with which they share a capacity for ferrous iron oxidation. Ribulose bisphosphate carboxylase/oxygenase (RuBisCO) is active in CO(2) fixation by Acidimicrobium ferrooxidans, which appears to have acquired its RuBisCO-encoding genes from the proteobacterium Acidithiobacillus ferrooxidans or its ancestor. This lateral transfer of RuBisCO genes between a proteobacterium and an actinobacterium would add to those noted previously among proteobacteria, between proteobacteria and cyanobacteria and between proteobacteria and plastids. "Acidithiomicrobium" has RuBisCO-encoding genes which are most closely related to those of Acidimicrobium ferrooxidans and Acidithiobacillus ferrooxidans, and has additional RuBisCO genes of a different lineage. 16S rRNA gene sequences from "Acidithiomicrobium" species dominated clone banks of the genes extracted from mixed cultures of moderate thermophiles growing on copper sulfide and polymetallic sulfide ores in ore leaching columns. |
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Authors:
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Paul R Norris; Carol S Davis-Belmar; Carly F Brown; Leonides A Calvo-Bado |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-2-10 |
Journal Detail:
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Title: Extremophiles : life under extreme conditions Volume: - ISSN: 1433-4909 ISO Abbreviation: - Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-2-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9706854 Medline TA: Extremophiles Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK, P.R.Norris@warwick.ac.uk. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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