Desulfuromonadales corrig. Kuever et al. 2006
General information
Description and emendation
The order Desulfuromonales has been established primarily based on 16S rRNA sequence analysis and combines three families of anaerobes, the Desulfuromonaceae and Geobacteraceae. Whereas the Desulfuromonaceae and Geobacteraceae also share several nutritional properties with each other, nutritional relationships to the family Pelobacteraceae are less obvious. Cells are rod shaped and usually motile. Strictly anaerobic chemolithoheterotrophs or chemoorganotrophs with respiratory or fermentative metabolism. All members are moderate mesophiles with temperature optima for growth around 30°C. Menaquinones are present. Species have been isolated from anoxic freshwater and marine environments. Most members of the Desulfuromonaceae and Geobacteraceae can use ferric iron and elemental sulfur (or polysulfide) as electron acceptors that are reduced to ferrous iron and sulfide; in addition, Mn(IV) and oxidized humic substances may be used by some species. Sulfate, thiosulfate, and sulfite do not serve as electron acceptors. Simple organic compounds such as acetate and other carboxylic acids serve as electron donors and carbon sources. Organic substrates are completely oxidized to CO2; the mechanism of terminal oxidation is the citric acid cycle. Members of the Pelobacteraceae show an exclusively fermentative metabolism; the main common fermentation product is acetate.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
MSG086848 | 'Desulfobacterota_F bacterium' | Species | |
MSG076530 | 'Desulfuromonadales bacterium' | Species | |
MSG086737 | 'Desulfuromonadota bacterium' | Species | |
MSG076529 | 'Geopsychrobacteraceae bacterium' | Species | |
MSG076526 | 'Geopsychrobacteraceaebacterium' | Species | |
MSG100690 | 'Syntrophotalea Syntrophotalea carbinolica' | Species | |
MSG102128 | 'Syntrophotalea carbinolica' | Species | |
MSG076523 | 'Syntrophotaleaceae bacterium' | Species | |
M0225040601 | Desulfuromonadaceae | Family | 213421 |
M0225040602 | Geobacteraceae | Family | 213422 |