RT Journal Article SR Electronic(1) A1 Huber, Katharina J. A1 Geppert, Alicia M. A1 Groß, Uwe A1 Luckner, Manja A1 Wanner, Gerhard A1 Cooper, Paul A1 Abakah, John A1 Janssen, Iryna A1 Overmann, JörgYR 2017 T1 Aridibacter nitratireducens sp. nov., a member of the family Blastocatellaceae, class Blastocatellia, isolated from an African soil JF International Journal of Systematic and Evolutionary Microbiology, VO 67 IS 11 SP 4487 OP 4493 DO https://doi.org/10.1099/ijsem.0.002318 PB Microbiology Society, SN 1466-5034, AB Members of the class Blastocatellia are frequently found in soils with a neutral and (slightly) basic pH where they constitute an important fraction of the microbial community. A novel representative of the class Blastocatellia was isolated from a Ghanaian soil and was characterized in detail. Cells of strain A24_SHP_−5_238T were non-motile rods that divided by binary fission and formed orange to salmon-coloured colonies on agar plates. Strain A24_SHP_−5_238T tolerated pH values of pH 6.0–9.0 (best growth at pH 7.0–8.5) and temperature values of 8–45 °C (best growth at 33–40 °C). It grew chemo-organoheterotrophically on several sugars, a few amino acids, organic acids and different complex protein substrates. In addition, strain A24_SHP_−5_238T was able to use nitrate as an alternative electron acceptor in the absence of oxygen. Major fatty acids of A24_SHP_−5_238T were iso-C15 : 0, summed feature 1 (C13 : 0 3-OH/iso-C15 : 1 H), summed feature 3 (C16 : 1ω7c/C16  : 1ω6c), anteiso-C17 : 0 and anteiso-C15 : 0. The major quinone was MK-8, and the DNA G+C content was 53.5 mol%. The closest described phylogenetic relatives were Aridibacter famidurans A22_HD_4HT and Aridibacter kavangonensis Ac_23_E3T with a 16S rRNA gene sequence identity of 97.6 and 97.2 %, respectively. The DNA–DNA hybridization values (<28.5 %) confirmed that A24_SHP_−5_238T represents a novel species within the genus Aridibacter . Based on its morphological, physiological and molecular characteristics, we propose the novel species Aridibacter nitratireducens sp. nov. (type strain A24_SHP_−5_238T = DSM 102177T = CECT 9235T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002318