RT Journal Article SR Electronic(1) A1 Garcia, Ronald A1 Müller, RolfYR 2018 T1 Simulacricoccus ruber gen. nov., sp. nov., a microaerotolerant, non-fruiting, myxospore-forming soil myxobacterium and emended description of the family Myxococcaceae JF International Journal of Systematic and Evolutionary Microbiology, VO 68 IS 10 SP 3101 OP 3110 DO https://doi.org/10.1099/ijsem.0.002936 PB Microbiology Society, SN 1466-5034, AB A non-fruiting group of myxobacteria was previously speculated to exist in nature based on metagenomics data containing uncultured members of the order Myxococcales. Here, we describe a myxobacterial strain, designated MCy10636T, which was isolated from a German soil sample collected in 2013. It exhibits swarming characteristics but atypically produces myxospores in the absence of fruiting bodies. The novel strain stains Gram-negative and Congo-red-negative and is characterized mesophilic, neutrophilic, chemoheterotrophic and microaerotolerant. Branched-chain fatty acids are the predominant cellular fatty acids over the straight-chain type, and contain the major fatty acids iso-C17 : 0 2-OH, C16 : 1, iso-C17 : 0 and iso-C15 : 0. Based on blastn results, the 16S rRNA gene sequence reveals similarity (97 %) to Aggregicoccus edonensis MCy1366T, (97 %) Myxococcus macrosporus DSM 14697T, (96 %) Corallococcus coralloides DSM2259T and Corallococcus exiguus Cc e167T. Phylogenetic analysis showed a novel lineage of MCy10636T in the family Myxococcaceae , suborder Cystobacterineae. Based on polyphasic taxonomic characterization, we propose that this unusual, non-fruiting, myxospore-forming and microaerotolerant myxobacterial strain, MCy10636T, represents a novel genus and species, Simulacricoccus ruber gen. nov., sp. nov. (DSM 106554T=NCCB 100651T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002936