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Volume 68, Issue 10

Simulacricoccus ruber gen. nov., sp. nov., a microaerotolerant, non-fruiting, myxospore-forming soil myxobacterium and emended description of the family Myxococcaceae Free

Abstract

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 MCy10636, 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 MCy1366, (97 %) Myxococcus macrosporus DSM 14697, (96 %) Corallococcus coralloides DSM2259 and Corallococcus exiguus Cc e167. Phylogenetic analysis showed a novel lineage of MCy10636 in the family Myxococcaceae , suborder Cystobacterineae. Based on polyphasic taxonomic characterization, we propose that this unusual, non-fruiting, myxospore-forming and microaerotolerant myxobacterial strain, MCy10636, represents a novel genus and species, Simulacricoccus ruber gen. nov., sp. nov. (DSM 106554=NCCB 100651).

  • Received:
  • Accepted:
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Keyword(s): microaerotolerant , Myxobacteria , myxospore-forming , non-fruiting , ruber and Simulacricoccus
© 2018 IUMS
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2018-08-16
2024-04-19
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Simulacricoccus ruber gen. nov., sp. nov., a microaerotolerant, non-fruiting, myxospore-forming soil myxobacterium and emended description of the family Myxococcaceae
Int J Syst Evol Microbiol 68, 3101 (2018); https://doi.org/10.1099/ijsem.0.002936
/content/journal/ijsem/10.1099/ijsem.0.002936
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