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Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Deltaproteobacteria
Order: Desulfobacterales
Family: Desulfobulbaceae


The Desulfobulbaceae are a family of Proteobacteria. They reduce sulphates to sulphides to obtain energy and are anaerobic.[1]

The discovery of filamentous Desulfobulbaceae in 2012 elucidates the cause of the small electrical currents in the top layer of sediment on large portions of the ocean floor. The currents were first measured in 2010. Thousands of these currently unnamed Desulfobulbus cells are arranged in fibrous microorganisms up to a centimeter 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][2][3][4][5]


  1. ^ a b Pfeffer C, Larsen S, Song J, Dong M, Besenbacher F, Meyer RL, Kjeldsen KU, Schreiber L, Gorby YA, El-Naggar MY, Leung KM, Schramm A, Risgaard-Petersen N, Nielsen LP (November 2012). "Filamentous bacteria transport electrons over centimetre distances". Nature. 491 (7423): 218–21. doi:10.1038/nature11586. PMID 23103872. 
  2. ^ Reguera, Gemma (November 2012). "Microbiology: Bacterial power cords". Nature. 491 (7423): 201–2. doi:10.1038/nature11638. PMID 23103866. 
  3. ^ Keim, Brandon (24 October 2012). "Electric Bugs: New Microbe Forms Living, Deep-Sea Power Cables". Wired Science. Retrieved 26 October 2012. 
  4. ^ Smith, Bridie (6 December 2014). "Shock as scientists find 'electric' bacteria in the Yarra". The Age. p. 15. 
  5. ^ Larsen S, Nielsen LP, Schramm A (September 2014). "Cable Bacteria Associated with Long Distance Electron Transport in New England Salt Marsh Sediment". Environ Microbiol Rep. 7: 175–9. doi:10.1111/1758-2229.12216. PMID 25224178.