Biology:Desulfitobacterium hafniense

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Short description: Species of bacterium


Desulfitobacterium hafniense
Scientific classification
Domain:
Bacteria
Phylum:
Bacillota
Class:
Clostridia
Order:
Clostridiales
Family:
Peptococcaceae
Genus:
Desulfitobacterium
Species:
D. hafniense
Binomial name
Desulfitobacterium hafniense
Christiansen and Ahring 1996

Desulfitobacterium hafniense is a species of gram positive bacteria, its type strain is DCB-2T.[1] ( NCBI taxonomy ID 272564; DSM 10664).

D. hafniense are anaerobic spore-forming bacteria. The majority of the described isolates are facultatively organohalide respiring bacteria capable of reductive dechlorination of organohalides such as chlorophenols, and tetrachloroethene. The cells of D. hafniense are rod-shaped and 3.3 to 6 μm long by 0.6 to 0.7 μm wide, they are motile, each cell having one or two terminal flagella. All tested strains are resistant to the antibiotic vancomycin.[2][3]

Over the years several additional strains belonging to the hafniense species has been described from a diverse range of environments. Strains PCP-1, TCE1, DP7, TCP-A and G2 were originally published as members of a separate species Frappieri, but all are today considered as belonging to the hafniense species.[4][5]

D. hafniense isolates
Strain Source DSM
DCB-2T[1] Sewage sludge 10664
PCP-1[6] Sewage sludge 12420
TCP-A[7] River sediment 13557
GBFH[4] River sediment ---
Y51[8] Polluted soil ---
TCE1[9] Polluted soil ---
PCE-S[10] Polluted soil 14645
G2[11] Subsurface 16228
DP7[12] Human feces 13498
LBE[13] not described ---

Genomes

The genome of D. hafniense contains the machinery for both pyrrolysine and selenocysteine, making it the only known organism that potentially utilizes 22 amino acids in protein translation. [14] Desulfitobacterium hafniense strain DCB-2T has a single circular genome that contains 5.78 Mbp encoding 5,045 genes. The genome of Desulfitobacterium hafniense strain DCB-2T harbors seven genes encoding reductive dehalogenases, five of these seems to be functional and two are disrupted by mutations.[15]

Full genome sequence information is available for nine desulfitobacterium hafniense strains. They all have genome sizes ranging from 5 to 5,7 Mbp, none of the sequenced strains contains any plasmids. The genomes encodes only limited numbers of reductive dehalogenases, in addition to genes for utilizing a wide range of electron donors and acceptors.

Strain Genome size (Mbp) Number of reductive

dehalogenases

Genome described
Y51 5,7 1 2006[16]
DCB-2T 5,3 7 2012[15]
PCE-S 5,7 2 2015[17]
DH 5,4 0 2016[18]
TCE1 5,7 1 2017[19]
PCP-1 5,6 7 2017[19]
LBE 5,5 2 2017[19]
DP7 5,2 0 2017[19]
TCP-A 5 5 2017[19]


References

  1. ↑ 1.0 1.1 "Desulfitobacterium hafniense sp. nov., an Anaerobic, Reductively Dechlorinating Bacterium". International Journal of Systematic Bacteriology 46 (2): 442–448. 1996. doi:10.1099/00207713-46-2-442. 
  2. ↑ "Noncanonical vancomycin resistance cluster from Desulfitobacterium hafniense Y51". Antimicrobial Agents and Chemotherapy 53 (7): 2841–5. July 2009. doi:10.1128/AAC.01408-08. PMID 19414574. 
  3. ↑ "vanI: a novel D-Ala-D-Lac vancomycin resistance gene cluster found in Desulfitobacterium hafniense". Microbial Biotechnology 7 (5): 456–66. September 2014. doi:10.1111/1751-7915.12139. PMID 25042042. 
  4. ↑ 4.0 4.1 "Isolation and characterization of a novel As(V)-reducing bacterium: implications for arsenic mobilization and the genus Desulfitobacterium". Applied and Environmental Microbiology 67 (12): 5568–80. December 2001. doi:10.1128/AEM.67.12.5568-5580.2001. PMID 11722908. 
  5. ↑ "The Desulfitobacterium genus". FEMS Microbiology Reviews 30 (5): 706–33. September 2006. doi:10.1111/j.1574-6976.2006.00029.x. PMID 16911041. 
  6. ↑ "Isolation and characterization of Desulfitobacterium frappieri sp. nov., an anaerobic bacterium which reductively dechlorinates pentachlorophenol to 3-chlorophenol". International Journal of Systematic Bacteriology 46 (4): 1010–5. October 1996. doi:10.1099/00207713-46-4-1010. PMID 8863430. 
  7. ↑ "Analysis of a 2,4,6-trichlorophenol-dehalogenating enrichment culture and isolation of the dehalogenating member Desulfitobacterium frappieri strain TCP-A". Archives of Microbiology 175 (2): 133–42. February 2001. doi:10.1007/s002030000248. PMID 11285741. 
  8. ↑ "Isolation and characterization of Desulfitobacterium sp. strain Y51 capable of efficient dehalogenation of tetrachloroethene and polychloroethanes". Bioscience, Biotechnology, and Biochemistry 65 (7): 1474–81. July 2001. doi:10.1271/bbb.65.1474. PMID 11515528. 
  9. ↑ "Influence of different electron donors and acceptors on dehalorespiration of tetrachloroethene by Desulfitobacterium frappieri TCE1". Applied and Environmental Microbiology 65 (12): 5212–21. December 1999. doi:10.1128/AEM.65.12.5212-5221.1999. PMID 10583967. 
  10. ↑ "Comparative studies on tetrachloroethene reductive dechlorination mediated by Desulfitobacterium sp. strain PCE-S". Archives of Microbiology 168 (6): 513–9. December 1997. doi:10.1007/s002030050529. PMID 9385143. 
  11. ↑ "Use of Ferric and Ferrous Iron Containing Minerals for Respiration by Desulfitobacterium frappieri" (in en). Geomicrobiology Journal 20 (2): 143–156. March 2003. doi:10.1080/01490450303884. 
  12. ↑ "A Desulfitobacterium strain isolated from human feces that does not dechlorinate chloroethenes or chlorophenols". Archives of Microbiology 175 (6): 389–94. June 2001. doi:10.1007/s002030100276. PMID 11491079. 
  13. ↑ "Use of Bacteria To Stabilize Archaeological Iron". Applied and Environmental Microbiology 83 (9). May 2017. doi:10.1128/AEM.03478-16. PMID 28283522. 
  14. ↑ Herring, S.; Ambrogelly, A.; Polycarpo, C. R.; Soll, D. Recognition of Pyrrolysine TRNA by the Desulfitobacterium Hafniense Pyrrolysyl-TRNA Synthetase. Nucleic Acids Research 2007, 35 (4), 1270–1278. https://doi.org/10.1093/nar/gkl1151.
  15. ↑ 15.0 15.1 "Genome sequence of Desulfitobacterium hafniense DCB-2, a Gram-positive anaerobe capable of dehalogenation and metal reduction". BMC Microbiology 12: 21. February 2012. doi:10.1186/1471-2180-12-21. PMID 22316246. 
  16. ↑ "Complete genome sequence of the dehalorespiring bacterium Desulfitobacterium hafniense Y51 and comparison with Dehalococcoides ethenogenes 195". Journal of Bacteriology 188 (6): 2262–74. March 2006. doi:10.1128/JB.188.6.2262-2274.2006. PMID 16513756. 
  17. ↑ "Draft genome sequence and characterization of Desulfitobacterium hafniense PCE-S". Standards in Genomic Sciences 10: 15. 2015. doi:10.1186/1944-3277-10-15. PMID 26203328. 
  18. ↑ "Draft Genome Sequence of Desulfitobacterium hafniense Strain DH, a Sulfate-Reducing Bacterium Isolated from Paddy Soils". Genome Announcements 4 (1). February 2016. doi:10.1128/genomeA.01693-15. PMID 26868389. 
  19. ↑ 19.0 19.1 19.2 19.3 19.4 "Comparative genomics of the genus Desulfitobacterium". FEMS Microbiology Ecology 93 (12). December 2017. doi:10.1093/femsec/fix135. PMID 29040502. 

Further reading

External links

Wikidata ☰ Q3706079 entry



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