Conference paper
Geographical distribution and diversity of moderately thermophilic members of the thermoplasmatales
Advanced Materials Research, Vol.20-21, pp.405-408
Trans Tech Publications
17th International Biohydrometallurgy Symposium, IBS 2007 (Frankfurt, 02/09/2007–05/09/2007)
2007
Abstract
Oxidation of ferrous iron by moderately thermophilic species of the genus Ferroplasma is of considerable potential value in commercial bioleaching operations. A collection of strains was enriched and isolated from a number of natural or industrial acidic sites at 45 and 55°C. Phylogenetic analysis based on 16S rRNA gene sequencing indicated that all strains were members of the Order Thermoplasmatales. Stains BH8 and BH12 showed 98% sequence similarity with Ferroplasma acidiphilum strain YT and DR1 respectively. Strains BH7 and BH10 were closely related to the moderately thermophilic species Ferroplasma cupricumulans. Strain BH9, a moderately thermophilic organotroph, was unrelated to previously described species and probably represents a novel genus. Strains BH8 and BH12 showed some unique physiological differences to the type species F. acidiphilum. Unlike F. acidiphilum, both strains were moderately thermophilic with a temperature range for strains BH8 and BH12 of 24 to 61°C and 27 to 49°C respectively. Strain BH12 grew organotrophically on Darland's Medium containing glucose and yeast extract and chemomixotrophically on Darland's Medium supplemented with ferrous sulphate. Moderately thermophilic species of Ferroplasma and Ferroplasma-like genera appear widely distributed geographically and possess considerable physiological and phylogenetic diversity that may benefit industrial bioleaching processes.
Details
- Title
- Geographical distribution and diversity of moderately thermophilic members of the thermoplasmatales
- Authors/Creators
- R. Hawkes (Author/Creator)G. O'Hara (Author/Creator)P.D. Franzmann (Author/Creator)J.J. Plumb (Author/Creator)
- Publication Details
- Advanced Materials Research, Vol.20-21, pp.405-408
- Conference
- 17th International Biohydrometallurgy Symposium, IBS 2007 (Frankfurt, 02/09/2007–05/09/2007)
- Publisher
- Trans Tech Publications
- Identifiers
- 991005543810407891
- Copyright
- © 2007 Trans Tech Publications, Switzerland
- Murdoch Affiliation
- School of Biological Sciences and Biotechnology
- Language
- English
- Resource Type
- Conference paper
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