Contribution in an anthology

Appeared in: Bergey's Manual of Systematics of Archaea and Bacteria

Editor list: Whitman, WB

Publication year: 2015

eISBN: 978-1-118-96060-8

DOI Link: https://doi.org/10.1002/9781118960608.gbm00134

Abstract: 

Ra.ro.bac'ter. L. adj. rarus curious; N.L. masc. n. bacter masculine form from Gr. neut. n. baktron a rod; N.L. masc. n. rarobacter curious rod.

Actinobacteria / Actinobacteria / Micrococcales / Rarobacteraceae / Rarobacter

Cells are irregular rods, 0.2–0.3 × 0.8–1.0 µm. Gram-stain-positive, but readily decolorized. Not acid-fast. Motile by multitrichous flagella. Nonsporeforming. Optimal temperature is 30°C, and optimal pH is 6–8 for growth. Facultatively anaerobic. Chemo-organotrophic. Mesophilic. Requires hemin of hemoproteins for growth. Ammonium salts are utilized as nitrogen source, but nitrate is not utilized. Acid is produced aerobically and anaerobically from D-glucose and D-mannose, but not from L-arabinose or L-rhamnose. Organic acids studied thus far are not assimilated. Starch, casein, and gelatin are hydrolyzed, but cellulose is not hydrolyzed. Oxidase-positive. Diamino acid of cell wall is L-ornithine. Amino acid composition of the cell-wall peptidoglycan is D-Ala, l -Ala, d -Glu, and L-Orn (and D-Ser) corresponding to type A4β. Mycolic acids and cell-wall teichoic acids are lacking. Branching fatty acids of the iso and anteiso types (C_16:0 iso and C_15:0 anteiso) predominate. Major menaquinone is MK-9(H₄ ).

DNA G+C content (mol%): 64.6–66.1.

Type species: Rarobacter faecitabidus Yamamoto, Sato, Saito, Hasuo, Tadenuma, Suzuki, Tamaoka and Komgata 1988, 10^VP.

Harvard Citation style: Kämpfer, P. (2015) Rarobacter, in Whitman, W. (ed.) Bergey's Manual of Systematics of Archaea and Bacteria. Hoboken, NJ: Wiley. https://doi.org/10.1002/9781118960608.gbm00134

APA Citation style: Kämpfer, P. (2015). Rarobacter. In Whitman, W. (Ed.), Bergey's Manual of Systematics of Archaea and Bacteria. Wiley. https://doi.org/10.1002/9781118960608.gbm00134