SUBSTRATA MAIN PAGE|
TAXONOMY: cellular organisms -> Bacteria -> Proteobacteria -> Betaproteobacteria -> Burkholderiales -> Sutterellaceae
The Sutterellaceae are a family of the Betaproteobacteria. Cells of Sutterellaceae are Gram-negative, oxidase- and catalase-negative, and grow under microaerophilic or anaerobic atmospheres. Sutterellaceae, a family within the order Burkholderiales in the lineage of phylum Proteobacteria (class Betaproteobacteria), includes the genera Sutterella and Parasutterella. The genus Sutterella contains three validly described species: Sutterella wadsworthensis (the type species), Sutterella parvirubra, and Sutterella stercoricanis. In contrast, the genus Parasutterella comprises the species Parasutterella excrementihominis (the type species) and Parasutterella secunda. Members of the family are mainly found in the intestinal tract of humans and some animals as members of the indigenous intestinal microbiota, and can be isolated from both the intestinal tract and from infections of gastrointestinal origin (S. wadsworthensis). The cells are Gram-negative rods or coccobacilli, and grow under anaerobic conditions or in a microaerophilic atmosphere. They are asaccharolytic and negative for oxidase and catalase activities. The main isoprenoid quinone is methylmenaquinone-5 (MMK-5) or MMK-6. The type genus is Sutterella. Sutterella cells were present in the intestines of children with autism, who also often suffer from digestive disturbances such as constipation and diarrhea, but absent from the intestines of children who did not have autism.