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Arsenite oxidation and arsenate respiration by a new Thermus isolate.
- Source :
-
FEMS microbiology letters [FEMS Microbiol Lett] 2001 Nov 13; Vol. 204 (2), pp. 335-40. - Publication Year :
- 2001
-
Abstract
- A new microbial strain was isolated from an arsenic-rich terrestrial geothermal environment. The isolate, designated HR13, was identified as a Thermus species based on 16S rDNA phylogenetic relationships and close sequence similarity within the Thermus genus. Under aerobic conditions, Thermus HR13 was capable of rapidly oxidizing inorganic As(III) to As(V). As(III) was oxidized at a rate approximately 100-fold greater than abiotic rates. Metabolic energy was not gained from the oxidation reaction. In the absence of oxygen, Thermus HR13 grew by As(V) respiration coupled with lactate oxidation. The ability to oxidize and reduce arsenic has not been previously described within the Thermus genus.
- Subjects :
- Aerobiosis
Anaerobiosis
DNA, Ribosomal analysis
Fresh Water chemistry
Hot Temperature
Oxidation-Reduction
Phylogeny
RNA, Ribosomal, 16S genetics
Thermus classification
Thermus genetics
Arsenates metabolism
Arsenites metabolism
Fresh Water microbiology
Thermus isolation & purification
Thermus metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 0378-1097
- Volume :
- 204
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- FEMS microbiology letters
- Publication Type :
- Academic Journal
- Accession number :
- 11731145
- Full Text :
- https://doi.org/10.1111/j.1574-6968.2001.tb10907.x