Abstract
Al.gi.mo'nas. L. fem. n. alga seaweed; L. fem. n. monas a monad, a unit; N.L. fem. n. Algimonas a monad isolated from seaweed.
Proteobacteria / Alphaproteobacteria / Rhodobacterales / Hyphomonadaceae / Algimonas
The genus Algimonas comprises three species, Algimonas porphyrae (the type species), Algimonas ampicilliniresistens, and Algimonas arctica. Cells exhibit rod-shaped morphology. One cell possesses a single polar flagellum and the other, a prosthecum. Cell division occurs by binary fission. Colonies are round, convex, and orange or pale orange. Cells are Gram-negative, motile, aerobic, and produce carotenoid pigments but not bacteriochlorophyll a. Growth occurs at 10–30°C (optimum, 20–25°C), pH 6.0–9.0 (optimum, 7.0–8.0), and 1.0–5.0% NaCl (optimum, 2.0–3.0%). Cells are positive for catalase, nitrate reduction, and hydrolysis of esculin and negative for methyl red and Voges–Proskauer reactions, indole and H2S production, and hydrolysis of starch and gelatin. Analysis of 16S rRNA gene sequences revealed that the genus Algimonas belongs to the family Hyphomonadaceae and is related to the genera Litorimonas, Fretibacter, Hellea, and Robiginitomaculum. The predominant respiratory quinone is ubiquinone-10. The major polar lipids are phosphatidylglycerol, glucuronopyranosyl diglyceride, monoglycosyl diglyceride, and three unidentified phospholipids. The major fatty acids (>10%) are C18:1 ω7c and C18:1 2-OH. Members of the genus have been isolated from marine red alga or intertidal sand.
DNA G + C content (mol%): 54.3–60.6 (HPLC or Tm).
Type species: Algimonas porphyrae Fukui et al. 2013aVP.
