Desulfatibacillaceae

Abstract

Abstract De.sul.fa.ti.ba.cil.la.ce'ae. N.L. neut. n. Desulfatibacillum , type genus of the family; suff. ‐ aceae , ending to denote a family; N.L. neut. pl. n. Desulfatibacillaceae , the family of Desulfatibacillum . Desulfobacterota / Desulfobacteria / Desulfobacterales / Desulfatibacillaceae Short to polymorphic or slightly curved rods, 0.5–0.7 × 1.2–5.5 μm. Occur in clumps during growth on insoluble substrates or singly. Stain Gram‐negative. Motility was not reported. Strictly anaerobic, having respiratory and syntrophic types of metabolism. Chemoorganoheterotrophs using alkanes and/or alkenes, C 4 –C 16 straight‐chain fatty acids, and some simple organic compounds as carbon sources and electron donors. Electron donors are completely oxidized to CO 2 via the anaerobic C 1 ‐pathway (carbon monoxide dehydrogenase [CODH] or Wood–Ljungdahl pathway). Chemolithoautotrophic growth on H 2 and CO 2 . Sulfate, sulfite, and thiosulfate serve as terminal electron acceptors and are reduced to H 2 S. Fermentative growth was not reported. Mesophilic and neutrophilic. The family contains only the genus Desulfatibacillum. Desulfatibacillum species occur in oil‐polluted and nonpolluted, anoxic brackish water and marine sediments. DNA G + C content (mol%) : 54.4–54.9 (genome). Type genus : Desulfatibacillum Cravo‐Laureau et al. 2004b VP emend. Cravo‐Laureau et al. 2004c.