Biology:Desulfobulbaceae

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Short description: Family of bacteria

Desulfobulbaceae
Scientific classification
Domain:
Phylum:
Class:
Desulfobulbia
Order:
Desulfobulbales
Family:
Desulfobulbaceae

Kuever et al. 2006
Genera
  • Desulfobulbus
  • Desulfogranum
  • Desulfolithobacter
  • "Ca. Electronema"
  • "Ca. Electrothrix"

The Desulfobulbaceae are a family of Thermodesulfobacteriota. They reduce sulphates to sulphides to obtain energy and are anaerobic.

The discovery of filamentous Desulfobulbaceae in 2012 elucidates the cause of the small electric currents measured in the top layer of marine sediment.[1] The currents were first measured in 2010.[2] These organisms, referred to as "cable bacteria", consist in thousands of cells arranged in filaments up to three centimeters in length. They transport electrons from the sediment that is rich in hydrogen sulfide up to the oxygen-rich sediment that is in contact with the water.[1][3][4][5][6] Later investigations revealed their ability to use nitrate or nitrite as final electron acceptor in absence of oxygen[7][8] Since the discovery, cable bacteria have been reported from a wide variety of sediments worldwide.[9] Based on phylogenetic analysis of 16s rRNA and dsrAB genes it was proposed to allocate cable bacteria within two novel candidate genera i.e. Ca. Electrothrix and Ca. Electronema.[10]

Phylogeny

The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[11] and National Center for Biotechnology Information (NCBI)[12]

16S rRNA based LTP_08_2023[13][14][15] 120 marker proteins based GTDB 08-RS214[16][17][18]

Desulfolithobacter Hashimoto et al. 2023

Desulfobulbus

Desulfobulbus rhabdoformis

Desulfogranum

"Ca. Desulfobulbus rimicarensis" Jiang et al. 2020

"Ca. Electrothrix" Trojan et al. 2016

"Ca. Electronema" Trojan et al. 2016

Desulfobulbus Widdel 1981

Desulfogranum Galushko & Kuever 2021

Notes

  1. 1.0 1.1 "Filamentous bacteria transport electrons over centimetre distances". Nature 491 (7423): 218–21. November 2012. doi:10.1038/nature11586. PMID 23103872. 
  2. Nielsen, Lars Peter; Risgaard-Petersen, Nils; Fossing, Henrik; Christensen, Peter Bondo; Sayama, Mikio (February 2010). "Electric currents couple spatially separated biogeochemical processes in marine sediment" (in En). Nature 463 (7284): 1071–1074. doi:10.1038/nature08790. ISSN 0028-0836. PMID 20182510. 
  3. "Microbiology: Bacterial power cords". Nature 491 (7423): 201–2. November 2012. doi:10.1038/nature11638. PMID 23103866. 
  4. Keim, Brandon (24 October 2012). "Electric Bugs: New Microbe Forms Living, Deep-Sea Power Cables". Wired Science. https://www.wired.com/wiredscience/2012/10/bacteria-electric-wires. 
  5. Smith, Bridie (6 December 2014). "Shock as scientists find 'electric' bacteria in the Yarra". The Age: p. 15. http://www.theage.com.au/technology/sci-tech/shock-as-scientists-find-electric-bacteria-in-the-yarra-20141205-121751.html. 
  6. "Cable bacteria associated with long-distance electron transport in New England salt marsh sediment". Environmental Microbiology Reports 7 (2): 175–9. April 2015. doi:10.1111/1758-2229.12216. PMID 25224178. 
  7. "Electric coupling between distant nitrate reduction and sulfide oxidation in marine sediment". The ISME Journal 8 (8): 1682–90. August 2014. doi:10.1038/ismej.2014.19. PMID 24577351. 
  8. Risgaard-Petersen, Nils; Damgaard, Lars Riis; Revil, André; Nielsen, Lars Peter (2014-08-01). "Mapping electron sources and sinks in a marine biogeobattery" (in en). Journal of Geophysical Research: Biogeosciences 119 (8): 1475–1486. doi:10.1002/2014jg002673. 
  9. Burdorf, L. D. W.; Tramper, A.; Seitaj, D.; Meire, L.; Hidalgo-Martinez, S.; Zetsche, E.-M.; Boschker, H. T. S.; Meysman, F. J. R. (2017-02-10). "Long-distance electron transport occurs globally in marine sediments". Biogeosciences 14 (3): 683–701. doi:10.5194/bg-14-683-2017. 
  10. "A taxonomic framework for cable bacteria and proposal of the candidate genera Electrothrix and Electronema". Systematic and Applied Microbiology 39 (5): 297–306. July 2016. doi:10.1016/j.syapm.2016.05.006. PMID 27324572. 
  11. A.C. Parte. "Desulfobulbaceae". List of Prokaryotic names with Standing in Nomenclature (LPSN). https://lpsn.dsmz.de/family/Desulfobulbaceae. 
  12. Sayers. "Desulfobulbaceae". National Center for Biotechnology Information (NCBI) taxonomy database. https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Undef&id=213121&lvl=3&lin=f&keep=1&srchmode=1&unlock. 
  13. "The LTP". https://imedea.uib-csic.es/mmg/ltp/#LTP. 
  14. "LTP_all tree in newick format". https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_all_08_2023.ntree. 
  15. "LTP_08_2023 Release Notes". https://imedea.uib-csic.es/mmg/ltp/wp-content/uploads/ltp/LTP_08_2023_release_notes.pdf. 
  16. "GTDB release 08-RS214". https://gtdb.ecogenomic.org/about#4%7C. 
  17. "bac120_r214.sp_label". https://data.gtdb.ecogenomic.org/releases/release214/214.0/auxillary_files/bac120_r214.sp_labels.tree. 
  18. "Taxon History". https://gtdb.ecogenomic.org/taxon_history/. 

See also

References

Wikidata ☰ Q1201020 entry