Abstract
A.re.ni.mi.cro'bi.um. L. fem. n. arena, sand; N.L. neut. n. microbium, microbe; N.L. neut. n. Arenimicrobium, a bacterium isolated from sandy soil.
Acidobacteria / Blastocatellia / Blastocatellales / Pyrinomonadaceae / Arenimicrobium
Gram-negative, ovoid to rod-shaped cells that divide by binary fission. Cells are nonmotile and form neither spores nor capsules. Test positive for catalase and negative for cytochrome c oxidase. Grow aerobically by chemoorganotrophic metabolism, preferentially using complex protein-containing substrates. Mesophiles that are adapted to a broad range of pH values. Major polar lipids are diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, and phosphatidylinositol. Contain MK-8 as major respiratory quinone and minor amounts of MK-7. Major fatty acids include iso-C15 :0 and iso-C15 :1 H/C13 :0 3-OH (summed feature 1). Member of the class Blastocatellia (formerly subdivision 4 Acidobacteria), order Blastocatellales, family Pyrinomonadaceae. The type species was isolated from a sandy agriculturally used old flood plain soil in Mashare, Namibia. On the basis of the 16S rRNA gene sequence analysis, additional not-yet-cultured representatives occur mainly in bulk and rhizosphere soils. Also found in saline–alkaline soils, terrestrial crystalline volcanic rocks, and on human body skin.
DNA G + C content (mol%): 66.9 (HPLC).
Type species: Arenimicrobium luteum Wüst, Foesel, Geppert, Huber, Luckner, Wanner and Overmann 2016, 3362VP.
