ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The alpha-proteobacterial genus Acidiphilium consists of several acidophilic species,generally known as a part of the mesophilc microbial flora of leaching biotopes. All of them cangrow chemoorganotrophically on carbon sources like sugars and many express additionalphotosynthetic pigments. Thus far, only Ap. acidophilum is known to be capable ofchemolithotrophic growth on elemental sulfur oxidation. The oxidation potential of inorganic sulfurspecies by the other strictly heterotrophic species has not yet been thoroughly investigated. Here,we demonstrate the unequivocal evidence of inorganic sulfur compound oxidation by strains of Ap.cryptum and other Acidiphilium species. Evolutionary and biochemical aspects of this new featureamong the heterotrophic Acidiphilium spp. are discussed. This finding will possibly help to solvethe long-standing question about the biochemical nature of elemental sulfur oxidation in mesophilicleaching bacteria
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.20-21.583.pdf
