The genome sequence of the obligately chemolithoautotrophic, facultatively anaerobic bacterium Thiobacillus denitrificans

Harry R. Beller, Patrick S G Chain, Tracy E. Letain, Anu Chakicherla, Frank W. Larimer, Paul M. Richardson, Matthew A Coleman, Ann P. Wood, Donovan P. Kelly

Research output: Contribution to journalArticle

217 Citations (Scopus)

Abstract

The complete genome sequence of Thiobacillus denitrificans ATCC 25259 is the first to become available for an obligately chemolithoautotrophic, sulfur-compound-oxidizing, β-proteobacterium. Analysis of the 2,909,809-bp genome will facilitate our molecular and biochemical understanding of the unusual metabolic repertoire of this bacterium, including its ability to couple denitrification to sulfur-compound oxidation, to catalyze anaerobic, nitrate-dependent oxidation of Fe(II) and U(IV), and to oxidize mineral electron donors. Notable genomic features include (i) genes encoding c-type cytochromes totaling 1 to 2 percent of the genome, which is a proportion greater than for almost all bacterial and archaeal species sequenced to date, (ii) genes encoding two [NiFe] hydrogenases, which is particularly significant because no information on hydrogenases has previously been reported for T. denitrificans and hydrogen oxidation appears to be critical for anaerobic U(IV) oxidation by this species, (iii) a diverse complement of more than 50 genes associated with sulfur-compound oxidation (including sox genes, dsr genes, and genes associated with the AMP-dependent oxidation of sulfite to sulfate), some of which occur in multiple (up to eight) copies, (iv) a relatively large number of genes associated with inorganic ion transport and heavy metal resistance, and (v) a paucity of genes encoding organic-compound transporters, commensurate with obligate chemolithoautotrophy. Ultimately, the genome sequence of T. denitrificans will enable elucidation of the mechanisms of aerobic and anaerobic sulfur-compound oxidation by β-proteobacteria and will help reveal the molecular basis of this organism's role in major biogeochemical cycles (i.e., those involving sulfur, nitrogen, and carbon) and groundwater restoration.

Original languageEnglish (US)
Pages (from-to)1473-1488
Number of pages16
JournalJournal of Bacteriology
Volume188
Issue number4
DOIs
StatePublished - Feb 2006
Externally publishedYes

Fingerprint

Thiobacillus
Anaerobic Bacteria
Genome
Sulfur Compounds
Genes
Proteobacteria
Chemoautotrophic Growth
Cytochromes c1
Hydrogenase
Denitrification
Sulfites
Ion Transport
Groundwater
Adenosine Monophosphate
Heavy Metals
Sulfur
Nitrates
Sulfates
Minerals
Hydrogen

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Immunology

Cite this

Beller, H. R., Chain, P. S. G., Letain, T. E., Chakicherla, A., Larimer, F. W., Richardson, P. M., ... Kelly, D. P. (2006). The genome sequence of the obligately chemolithoautotrophic, facultatively anaerobic bacterium Thiobacillus denitrificans. Journal of Bacteriology, 188(4), 1473-1488. https://doi.org/10.1128/JB.188.4.1473-1488.2006

The genome sequence of the obligately chemolithoautotrophic, facultatively anaerobic bacterium Thiobacillus denitrificans. / Beller, Harry R.; Chain, Patrick S G; Letain, Tracy E.; Chakicherla, Anu; Larimer, Frank W.; Richardson, Paul M.; Coleman, Matthew A; Wood, Ann P.; Kelly, Donovan P.

In: Journal of Bacteriology, Vol. 188, No. 4, 02.2006, p. 1473-1488.

Research output: Contribution to journalArticle

Beller, HR, Chain, PSG, Letain, TE, Chakicherla, A, Larimer, FW, Richardson, PM, Coleman, MA, Wood, AP & Kelly, DP 2006, 'The genome sequence of the obligately chemolithoautotrophic, facultatively anaerobic bacterium Thiobacillus denitrificans', Journal of Bacteriology, vol. 188, no. 4, pp. 1473-1488. https://doi.org/10.1128/JB.188.4.1473-1488.2006
Beller, Harry R. ; Chain, Patrick S G ; Letain, Tracy E. ; Chakicherla, Anu ; Larimer, Frank W. ; Richardson, Paul M. ; Coleman, Matthew A ; Wood, Ann P. ; Kelly, Donovan P. / The genome sequence of the obligately chemolithoautotrophic, facultatively anaerobic bacterium Thiobacillus denitrificans. In: Journal of Bacteriology. 2006 ; Vol. 188, No. 4. pp. 1473-1488.
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