Fontimonas thermophila gen. nov., sp. nov., a moderately thermophilic bacterium isolated from a freshwater hot spring, and proposal of Solimonadaceae fam. nov. to replace Sinobacteraceae Zhou et al. 2008

Nathaniel A. Losey, Bradley S. Stevenson, Susanne Verbarg, Stephen Rudd, Edward R.B. Moore, Paul A. Lawson

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

A novel bacterial strain designated HA-01T was isolated from a freshwater terrestrial hot spring located at Hot Springs National Park, Arkansas, USA. Cells were Gram-negative-staining, rodshaped, aerobic, chemo-organotrophic, oxidaseand catalase-positive, non-spore-forming and motile by means of a single polar flagellum. Growth occurred at 37-60 °C, with an optimum between 45 and 50 6°, and at pH 6.5-8.5, with an optimum between pH 6.5 and 7.0. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the closest relatives of strain HA-01T were Solimonas aquatica NAA-16T (93.8%), Solimonas flava CW-KD 4T (94.1%), Solimonas soli DCY12T (93.1%), Solimonas variicoloris MN28T (94.0%), Nevskia ramosa Soe1T (91.2%) and Hydrocarboniphaga effusa AP103T (91.1%). Major fatty acids consisted of C16: 0, iso-C16: 0, C16: 1ω5c and summed feature 8 (C18: 1ω9c, C18: 1ω7c and C18: 1ω6c). Polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, and the major isoprenoid quinone was Q-8. The DNA G+C content was 64.4 mol%. Based on phylogenetic, phenotypic and chemotaxonomic evidence, it is proposed that strain HA-01T represents a novel species in a new genus for which the name Fontimonas thermophila gen. nov., sp. nov. is proposed. The type strain of the type species is HA-01T (5DSM 23609T5CCUG 59713T). A new family, Solimonadaceae fam. nov., is also proposed to replace Sinobacteriaceae Zhou et al. 2008.

Original languageEnglish (US)
Pages (from-to)254-259
Number of pages6
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume63
Issue number1
DOIs
StatePublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

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