Arsenite-oxidizing Hydrogenobaculum strain isolated from an acid-sulfate-chloride geothermal spring in Yellowstone National Park.
An arsenite-oxidizing Hydrogenobaculum strain was isolated from a geothermal spring in Yellowstone National Park, Wyo., that was previously shown to contain microbial populations engaged in arsenite oxidation. The isolate was sensitive to both arsenite and arsenate and behaved as an obligate chemolithoautotroph that used H(2) as its sole energy source and had an optimum temperature of 55 to 60 degrees C and an optimum pH of 3.0. The arsenite oxidation in this organism displayed saturation kinetics and was strongly inhibited by H(2)S.
Thermal Biology Institute and Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, Montana 59717, USA.
Jessica
J
Donahoe-Christiansen
Seth
S
D'Imperio
Colin R
CR
Jackson
William P
WP
Inskeep
Timothy R
TR
McDermott
D018053:Arsenites / Q000378:metabolism*; D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism*; D005618:Fresh Water / Q000382:microbiology*; D005798:Genes, Bacterial; D006358:Hot Temperature; D006862:Hydrogen Sulfide / Q000494:pharmacology; D007501:Iron / Q000494:pharmacology; D007700:Kinetics; D008969:Molecular Sequence Data; D009009:Montana; D010084:Oxidation-Reduction; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics
D018053:Arsenites; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D007501:Iron; C015001:arsenite; D006862:Hydrogen Sulfide