Tautonia sociabilis gen. nov., sp. nov., a novel thermotolerant planctomycete, isolated from a 4000 m deep subterranean habitat Kovaleva, Olga L. and Elcheninov, Alexander G. and Toshchakov, Stepan V. and Novikov, Andrei A. and Bonch-Osmolovskaya, Elizaveta A. and Kublanov, Ilya V.,, 69, 2299-2304 (2019), doi = https://doi.org/10.1099/ijsem.0.003467, publicationName = Microbiology Society, issn = 1466-5026, abstract= A novel aerobic bacterium, designated as strain GM2012T, was isolated from a microbial mat proliferating under the flow of thermal water dissipating from the wall of a 4000 m deep mine in South Africa. The cells were non-motile cocci, capable of budding, occurred in single or gathered in aggregates. The organism is a strictly aerobic chemoorganoheterotroph, preferring simple sugars and polysaccharides as growth substrates. The optimal growth occurred at 42 °C and pH 7.5–7.7. The predominant fatty acids were palmitate, stearate and oleate. The G+C content of the DNA was 70.1 mol%. The 16S rRNA gene sequence analysis placed strain GM2012T within the family Isosphaeraceae of the order Planctomycetales with 88–89 % sequence identity to Isosphaera pallida , Aquisphaera giovannonii, Singulisphaera acidiphila , Paludisphaera borealis and Tundrisphaera lichenicola type strains. Based on the genotypic and phenotypic distinctive features of the new strain, we propose a novel genus and species Tautonia sociabilis gen. nov., sp. nov. with the type strain GM2012T (=VKM B-2860,=KCTC 72013)., language=, type=