Serpentinimonas raichei, 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 RAICHEI SP. NOV.

Serpentinimonas raichei (rai′ che.i. N.L. gen. n. raichei , named after R. Raiche, one of the owners of The Cedars nature reserve).

In addition to the characteristics given above in the genus description, S. raichei has the characteristics described below. Growth occurs at 18–37 °C and pH 10.0–11.5 with optimal growth at 30°C and pH 11.0. NaCl ranges from 0 to 0.5 g l−1. The DNA base composition of the type strain is 66.6% G+C (determined from the genome). The strain grows autotrophically with hydrogen gas and calcium carbonate and heterotrophically on acetate, butyrate, lactate, pyruvate, ethanol, cyclohexane and fumarate under microaerophilic condition. The strain cannot utilize nitrate, sulphate, iron (III) hydroxide or iron (II/III) oxide as electron acceptors. The strain cannot ferment glucose. Major fatty acids are C 16:1 ω7 c and C 18:1 ω7 c. The respiratory quinone is ubiquinone.

The type strain, A1 T , (=NBRC 111848 T =DSM 103917 T), was isolated from a highly alkaline serpentinizing spring (Barnes Spring 1) in The Cedars located in north California, USA.