Octadecabacter

• Main Author: Gosink, John J.
• Format: Other/Unknown Material
• Language: English
• Published: Wiley 2015
• Subjects: Sea ice
• Online Access: http://dx.doi.org/10.1002/9781118960608.gbm00859; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F9781118960608.gbm00859; https://onlinelibrary.wiley.com/doi/pdf/10.1002/9781118960608.gbm00859; https://onlinelibrary.wiley.com/doi/full-xml/10.1002/9781118960608.gbm00859

Oc.ta.dec' a.bac.ter . Gr. pref. okto eight; Gr. pref. deca ten; Gr. neut. n. bakterion a rod; M.L. masc. n. Octadecabacter an 18‐carbon fatty acid–containing rod. Proteobacteria / Alphaproteobacteria / Rhodobacterales / Rhodobacteraceae / Octadecabacter Straight or pleomorphic rods 0 . 6–0 . 8 × 1 . 6–4 . 8 μ m . Nonmotile . All known strains produce gas vesicles . Gram negative. Aerobic or microaerophilic, possessing a strictly respiratory type of metabolism, with oxygen as the terminal electron acceptor. Do not reduce NO 3 − to NO 2 − . Do not grow anaerobically. Do not produce bacteriochlorophyll a . Form white, circular, convex, entire colonies on SWCm agar. 1 Growth occurs at pH 6.5–8.5 and at temperatures as low as 4°C in media having 17–70‰ salinity (4.8% NaCl). Catalase positive . Oxidase negative . Growth occurs on few (if any) organic compounds as sole carbon sources at 0.2% concentration. Growth occurs sparingly on selected carbon sources, including L ‐glutamate, glycerol, and mixed amino acids in dilute yeast extract. Octadecenoic acid ( C 18 : 1 ) is the major fatty acid . Member of the class Alphaproteobacteria . Isolated from polar marine sea ice. The mol % G + C of the DNA is : 56–57 (HPLC). Type species : Octadecabacter arcticus Gosink, Herwig and Staley 1998, 327 (Effective publication: Gosink, Herwig and Staley 1997, 363.)