Porphyrobacter mercurialis sp. nov., isolated froma stadium seat and emended description of the genus Porphyrobacter

David A. Coil, Jennifer C. Flanagan, Andrew Stump, Alexandra Alexiev, Jenna M. Lang, Jonathan A Eisen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A novel, Gram-negative, non-spore-forming, pleomorphic yellow-orange bacterial strain was isolated from a stadium seat. Strain CoronadoT falls within the Erythrobacteraceae family and the genus Porphyrobacter based on 16S rRNA phylogenetic analysis. This strain has Q-10 as the predominant respiratory lipoquinone, as do other members of the family. The fatty acid profile of this strain is similar to other Porphyrobacter, however CoronadoT contains predominately C18:1ω7cis and C16:0, a high percentage of the latter not being observed in any other Erythrobacteraceae. This strain is catalase-positive and oxidase-negative, can grow from 4 to 28 °C, at NaCl concentrations 0.1-1.5%, and at pH 6.0-8.0. On the basis of phenotypic and phylogenetic data presented in this study, strain CoronadoT represents a novel species in the Porphyrobacter genus for which the name Porphyrobacter mercurialis sp. nov. is proposed; the type strain is CoronadoT (=DSMZ 29971,=LMG 28700).

Original languageEnglish (US)
Article numbere1400
Issue number11
StatePublished - 2015


  • Bacterial species
  • Erythrobacteraceae
  • Novel species
  • Porphyrobacter
  • Porphyrobacter mercurialis

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)
  • Neuroscience(all)


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