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AlteromonasRANK: GenusTAXONOMY: cellular organisms -> Bacteria -> Proteobacteria -> Gammaproteobacteria -> Alteromonadales -> Alteromonadaceae -> Alteromonas OVERVIEW: Straight rods, approximately 1 × 2-3 μm, occurring singly or in pairs. Do not form spores or cysts. Do not accumulate poly-β-hydroxybutyrate. Gram negative. Motile, propelled by a single polar unsheathed flagellum. Colonies are nonpigmented. Chemoheterotrophic. Aerobic, having a strictly respiratory type of metabolism with oxygen as the terminal electron acceptor. Catalase and oxidase positive. Nitrate is not reduced, nor can it be used as an alternative electron acceptor. Do not grow by hydrogen autotrophy. A constitutive arginine dihydrolase system is absent. A range of carbon substrates can be used, including carbohydrates, alcohols, organic acids, and amino acids. Ammonia serves as a nitrogen source. Growth factors are not required. Require Na+ ions for growth. Growth occurs between 10 and 40°C; no growth at 4°C or 45°C. Major quinone is ubiquinone-8 (Q-8). Major fatty acids are C16:0, C16:1 ω7c, C17:1 ω8c, and C18:1 ω7c. Isolated from seawater. Member of the order Alteromonadales, family Alteromonadaceae, class Gammaproteobacteria. The mol% G + C of the DNA is: 44–48 (Tm). Type species: Alteromonas macleodi |