Arthrobacter ulcerisalmonis sp. Nov., isolated from an ulcer of a farmed atlantic salmon (salmo salar), and emended description of the genus arthrobacter sensu lato

Peter Kämpfer, Hans Jürgen Busse, Peter Schumann, Alexis Criscuolo, Dominique Clermont, Rute Irgang, Matías Poblete-Morales, Stefanie P. Glaeser, Ruben Avendaño-Herrera

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A Gram-stain positive, pleomorphic, oxidase-negative, non-motile isolate from the ulcer of a farmed Atlantic salmon (Salmo salar), designated strain T11bT, was subjected to a comprehensive taxonomic investigation. A comparative analysis of the 16S rRNA gene sequence showed highest similarities to the type strains of Pseudarthrobacter siccitolerans (98.1%) and Arthro-bacter methylotrophus and Pseudarthrobacter phenanthrenivorans (both 98.0 %). The highest ANI value observed between the assembled genome of T11bT and the publicly available Pseudarthrobacter and Arthrobacter type strain genomes were 81.15 and 80.99 %, respectively. The major respiratory quinone was menaquinone MK-9(H2). The polyamine pattern contained pre-dominantly spermidine. The polar lipid profile consisted of the major lipids diphosphatidylglycerol, phosphatidylglycerol, monogalactosyl-diacylglycerol and dimannosylglyceride. Minor amouts of trimannosyldiacylglycerol and phosphatidylinositol were also detected. The peptidoglycan was of the type A3α l-Lys–l-Ser–l-Thr–l-Ala (A11.23). In the fatty acid profile, anteiso and iso branched fatty acids predominated (anteiso C15: 0, iso C16: 0, anteiso C17: 0). Moderate to low DNA–DNA similarities, physiological traits as well as unique traits in the fatty acid pattern distinguished strain T11bT from the next related species. All these data point to the fact that strain T11bT represents a novel species of the genus Arthrobacter for which we propose the name Arthrobacter ulcerisalmonis sp. nov. The type strain is T11bT (=CIP 111621T=CCM 8854T=LMG 30632T=DSM 107127T).

Original languageEnglish
Article number004002
Pages (from-to)1963-1968
Number of pages6
JournalInternational Journal of Systematic and Evolutionary Microbiology
Volume70
Issue number3
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • Pseudarthrobacter
  • Taxonomy
  • Ulcerisalmonis

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics

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