%0 Journal Article %A Cole, Jessica K. %A Morton, Beau R. %A Cardamone, Hayley C. %A Lake, Hannah R. R. %A Dohnalkova, Alice C. %A Kim, Young-Mo %A Kyle, Jennifer E. %A Maezato, Yukari %A Dana, Karl L. %A Metz, Thomas O. %A Romine, Margaret F. %A Nelson, William C. %A Lindemann, Stephen R. %T Salinivirga fredricksonii gen. nov., sp. nov., a heterotrophic halophile isolated from a photosynthetic mat, a member of a novel lineage (Salinarimonadaceae fam. nov.) within the order Rhizobiales, and reclassification of the genus Salinarimonas Liu et al. 2010 into Salinarimonadaceae %D 2018 %J International Journal of Systematic and Evolutionary Microbiology, %V 68 %N 5 %P 1591-1598 %@ 1466-5034 %R https://doi.org/10.1099/ijsem.0.002715 %K epsophile %K hypersaline %K meromictic %K epsomitic lake %K halophile %I Microbiology Society, %X A halophilic bacterial strain, HL-109T, was isolated from the unicyanobacterial consortium UCC-O, which was obtained from the photosynthetic mat of Hot Lake (Washington, USA). A polyphasic approach using phenotypic, genotypic and chemotaxonomic data was used to classify the strain within the order Rhizobiales . The organism stained Gram-negative and was a moderate thermophile with a growth optimum of 45 °C. It was obligately aerobic, heterotrophic and halophilic, growing in both NaCl and MgSO4 brines. The novel isolate had a polymorphic cellular morphology of short rods with occasional branching, and cells were monotrichous. The major fatty acids detected were C18 : 1, C18 : 0, C16 : 0 and C18 : cyc. Phylogenetic analysis of the 16S rRNA gene placed the strain in the order Rhizobiales and it shared 94 % identity with the type strain of its nearest relative, Salinarimonas ramus . Morphological, chemotaxonomic and phylogenetic results did not affiliate the novel organism with any of the families in the Rhizobiales ; therefore, HL-109T is representative of a new lineage, for which the name Salinivirga fredricksonii gen. nov., sp. nov. is proposed, with the type strain HL-109T (=JCM 31876T=DSM 102886T). In addition, examination of the phylogenetics of strain HL-109T and its nearest relatives, Salinarimonas ramus and Salinarimonas rosea , demonstrates that these halophiles form a clade distinct from the described families of the Rhizobiales . We further propose the establishment of a new family, Salinarimonadaceae fam. nov., to accommodate the genera Salinivirga and Salinarimonas (the type genus of the family). %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijsem.0.002715