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词条 Sulfobacillus thermosulfidooxidans
释义

  1. Taxonomy

  2. Distribution and ecology

  3. Growth and metabolism

  4. Genome

  5. References

{{Taxobox
| regnum = Bacteria
| phylum = Firmicutes
| classis = Incertae sedis
| genus = Sulfobacillus
| species = S. thermosulfidooxidans
| binomial = Sulfobacillus thermosulfidooxidans
| binomial_authority = Golovacheva and Karavaiko 1991[1]
}}Sulfobacillus thermosulfidooxidans is a species of bacteria of the genus Sulfobacillus. It is an acidophilic, mixotrophic, moderately thermophilic, Gram-positive, sporulating facultative anaerobe. As its name suggests, it is capable of oxidizing sulfur.[1][2][3]

Taxonomy

S. thermosulfidooxidans, as well as the genus Sulfobacillus, were first described in 1978 based on isolates from Kazahkstan.[4][5] S. thermosulfidooxidans is the type species of the genus.[5] The genus is of uncertain taxonomic position,[2][5] likely related to the genus Thermaerobacter and possibly representing either a deep branch of the Firmicutes or a separate phylum.[2][6]

Distribution and ecology

S. thermosulfidooxidans is widely distributed in both natural and artificial acidic environments, including hot springs and acid mine drainage. Strains have been isolated from a variety of locations including China,[7] Chile,[3] Kazakhstan,[4] California,[1] and Zambia.[7] Compared to other bacteria often found in similar environments, Sulfobacillus species are typically present at relatively low abundance.[1][7]

Growth and metabolism

S. thermosulfidooxidans is acidophilic and moderately thermophilic; while different strains have slightly different pH and temperature growth optima, all prefer environments around pH 2.0 with optimal growth temperatures ranging from 45C to 55C.[4][8][2][3] S. thermosulfidooxidans is iron- and sulfur-oxidizing, capable of oxidation of elemental sulfur, tetrathionate, and sulfides.[1]

Genome

The genomes of several S. thermosulfidooxidans strains have been sequenced, demonstrating a genome size of 3.2-3.9 megabases, with a GC content of 48-49%[3][1][2][7] and a number of bioinformatically defined protein-coding genes ranging from a low of about 3200[2] to a high of about 3900.[1] All of the sequenced genomes contain large numbers of genes associated with sulfur oxidation; for example, genes encoding sulfur oxygenase reductase (SOR) and heterodisulfide reductase-like enzymes.[1][2][7] The genetic basis of the species' iron oxidation capacity is less clear but likely involves a sulfocyanin protein.[1][2][7] The genome also contains large numbers of transport proteins, including those specialized for metal ion efflux, and several CRISPR/Cas systems.[2] There is evidence of horizontal gene transfer as a significant contributor to S. thermosulfidooxidans evolution, including an unexpected relationship between a SOR gene and similar genes found only in archaea.[1][2][7]

References

1. ^{{cite journal |last1=Justice |first1=Nicholas B |last2=Norman |first2=Anders |last3=Brown |first3=Christopher T |last4=Singh |first4=Andrea |last5=Thomas |first5=Brian C |last6=Banfield |first6=Jillian F |title=Comparison of environmental and isolate Sulfobacillus genomes reveals diverse carbon, sulfur, nitrogen, and hydrogen metabolisms |journal=BMC Genomics |date=2014 |volume=15 |issue=1 |pages=1107 |doi=10.1186/1471-2164-15-1107|pmid=25511286 |pmc=4378227 }}
2. ^{{cite journal |last1=Guo |first1=Xue |last2=Yin |first2=Huaqun |last3=Liang |first3=Yili |last4=Hu |first4=Qi |last5=Zhou |first5=Xishu |last6=Xiao |first6=Yunhua |last7=Ma |first7=Liyuan |last8=Zhang |first8=Xian |last9=Qiu |first9=Guanzhou |last10=Liu |first10=Xueduan |last11=Mormile |first11=Melanie R. |title=Comparative Genome Analysis Reveals Metabolic Versatility and Environmental Adaptations of Sulfobacillus thermosulfidooxidans Strain ST |journal=PLoS ONE |date=18 June 2014 |volume=9 |issue=6 |pages=e99417 |doi=10.1371/journal.pone.0099417|pmid=24940621 |pmc=4062416 }}
3. ^{{cite journal |last1=Travisany |first1=D. |last2=Di Genova |first2=A. |last3=Sepulveda |first3=A. |last4=Bobadilla-Fazzini |first4=R. A. |last5=Parada |first5=P. |last6=Maass |first6=A. |title=Draft Genome Sequence of the Sulfobacillus thermosulfidooxidans Cutipay Strain, an Indigenous Bacterium Isolated from a Naturally Extreme Mining Environment in Northern Chile |journal=Journal of Bacteriology |date=26 October 2012 |volume=194 |issue=22 |pages=6327–6328 |doi=10.1128/JB.01622-12|pmid=23105067 |pmc=3486405 }}
4. ^{{cite journal |last1=Golovacheva |first1=RS |last2=Karavaĭko |first2=GI |title=[Sulfobacillus, a new genus of thermophilic sporulating bacteria]. |journal=Mikrobiologiia |date=1978 |volume=47 |issue=5 |pages=815–22 |pmid=101742}}
5. ^{{cite web |title=Genus Sulfobacillus |url=http://www.bacterio.net/sulfobacillus.html |website=List of Prokaryotic Names with Standing in Nomenclature |accessdate=18 November 2018}}
6. ^{{cite book |last1=Ludwig |first1=Wolfgang |last2=Schleifer |first2=Karl-Heinz |last3=Whitman |first3=William B. |editor1-last=Vos |editor1-first=Paul |editor2-last=Garrity |editor2-first=George |editor3-last=Jones |editor3-first=Dorothy |editor4-last=Krieg |editor4-first=Noel R. |editor5-last=Ludwig |editor5-first=Wolfgang |editor6-last=Rainey |editor6-first=Fred A. |editor7-last=Schleifer |editor7-first=Karl-Heinz |editor8-last=Whitman |editor8-first=William B. |title=Bergey's Manual of Systematic Bacteriology Volume 3: The Firmicutes |publisher=Springer |isbn=978-0-387-95041-9 |edition=2nd |chapter=Revised road map to the phylum Firmicutes|year=2001 }}
7. ^{{cite journal |last1=Zhang |first1=Xian |last2=Liu |first2=Xueduan |last3=Liang |first3=Yili |last4=Guo |first4=Xue |last5=Xiao |first5=Yunhua |last6=Ma |first6=Liyuan |last7=Miao |first7=Bo |last8=Liu |first8=Hongwei |last9=Peng |first9=Deliang |last10=Huang |first10=Wenkun |last11=Zhang |first11=Yuguang |last12=Yin |first12=Huaqun |last13=Drake |first13=Harold L. |title=Adaptive Evolution of Extreme Acidophile Sulfobacillus thermosulfidooxidans Potentially Driven by Horizontal Gene Transfer and Gene Loss |journal=Applied and Environmental Microbiology |date=1 April 2017 |volume=83 |issue=7 |doi=10.1128/AEM.03098-16|pmid=28115381 |pmc=5359484 }}
8. ^{{cite journal |last1=Bogdanova |first1=T. I. |title=Sulfobacillus thermotolerans sp. nov., a thermotolerant, chemolithotrophic bacterium |journal=International Journal of Systematic and Evolutionary Microbiology |date=1 May 2006 |volume=56 |issue=5 |pages=1039–1042 |doi=10.1099/ijs.0.64106-0|pmid=16627651 }}

2 : Acidophiles|Bacteria described in 1978

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