Serpentinimonas, Bird & Kuenen & Osburn & Tomioka & Ishii & Barr & Nealson & Suzuki, 2021

Bird, Lina J., Kuenen, J. Gijs, Osburn, Magdalena R., Tomioka, Naotaka, Ishii, Shun’ichi, Barr, Casey, Nealson, Kenneth H. & Suzuki, Shino, 2021, Serpentinimonas gen. nov., Serpentinimonas raichei sp. nov., Serpentinimonas barnesii sp. nov. and Serpentinimonas maccroryi sp. nov., hyperalkaliphilic and facultative autotrophic bacteria isolated from terrestrial serpentinizing springs, International Journal of Systematic and Evolutionary Microbiology (004945) 71 (8), pp. 1-10 : 8

DESCRIPTION OF SERPENTINIMONAS GEN. NOV.

Serpentinimonas (Ser.pen.ti.ni.mo′ nas. N.L. neut. n. serpentinum a dark green mineral produced from reaction of olivine with water; L. fem n. monas a shape, a monad; N.L. fem. n. Serpentinimonas , a monad from a serpentinizing site.).

Cells are Gram-stain-negative, rod shaped, motile cells 1–3 µm long, with a single polar flagellum. Organisms in this genus form small light-coloured (opaque creamy) colonies on plates (<1mm). Optimum growth occurs at 30°C at pH 11. Preferred media is without NaCl. Cells are catalase positive and sensitive to the antibiotics, kanamycin (50 µg ml−1) and gentamicin (10 µg ml−1). Fatty acid profiles are simple, containing primarily C 16:0, C 16:1 ω7 c, C 18:0, C 18:1 ω7 c and C 19:1 ω6 c fatty acids as well as linear hydrocarbons. Respiratory quinone was ubiquinone. Phylogenetically, the genus is a member of the Comamonadaceae . Although we proposed the novel strains as the new genus candidatus ‘Serpentinomonas’ in our previous publication, the genus name is inappropriate as Latin name, based on the publication written by H.G. Trüper [ 39]. Therefore, here we propose the new genus name as Serpentinimonas . The type species is Serpentinimonas raichei .