Autotrophic, sulfur-oxidizing actinobacteria in acidic environments
Norris, Paul R., Davis-Belmar, Carol S., Brown, Carly F. and Calvo-Bado, Leo A.. (2011) Autotrophic, sulfur-oxidizing actinobacteria in acidic environments. Extremophiles, Vol.15 (No.2). pp. 155-163. ISSN 1431-0651Full text not available from this repository.
Official URL: http://dx.doi.org/10.1007/s00792-011-0358-3
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 CO2 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.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry
Q Science > QR Microbiology
|Divisions:||Faculty of Science > Life Sciences (2010- )|
|Library of Congress Subject Headings (LCSH):||Autotrophic bacteria, Actinobacteria, Sulfur -- Oxidation|
|Journal or Publication Title:||Extremophiles|
|Page Range:||pp. 155-163|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||BHP Billiton PLC, Seventh Framework Programme (European Commission) (FP7), University of Warwick (UoW)|
|Grant number:||NMP2-CT-2004 505710 (FP7)|
Badger MR, Bek EJ (2008) Multiple Rubisco forms in proteobacteria:
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