Authors
Chahrazed Belhout, Andreas Thomann, Alexandra Rossano, Alexandra Collaud, Vincent Perreten
Published in
International journal of systematic and evolutionary microbiology. Volume 76. Issue 8.
Abstract
Strain 17KM0847T, isolated from the nasal discharge of a dead captive Cape ground squirrel (Xerus inauris), is a Gram-positive, oxidase-negative, catalase-positive and coagulase-negative coccoid bacterium. It grows under both aerobic and anaerobic conditions at 37 °C and tolerates up to 17.5% NaCl, and its colonies are smooth, convex and circular and exhibit complete staphylococcal α-haemolysis on sheep and horse blood agar. Phylogenomic analysis based on DNA alignment and amino-acid alignment obtained from the translated whole-genome sequence, along with comparisons of 16S rRNA and housekeeping genes (hsp60, dnaJ, rpoB, sodA, gap and tuf), placed strain 17KM0847T within the genus Staphylococcus, most closely related to species of Staphylococcus muscae, Staphylococcus microti, Staphylococcus rostri and Staphylococcus americanisciuri. The strain exhibited digital DNA-DNA hybridization (dDDH) values ≤22% and average nucleotide identity (ANI) values <78% to these closest relatives, well below the species-level delineation thresholds (70% dDDH; 95% ANI). Chemotaxonomic analysis identified diphosphatidylglycerol, phosphatidylglycerol and an aminophospholipid as the major polar lipids. The cellular fatty acid profile was dominated by C20 : 0, iso-C15 : 0, C16 : 0 and C18 : 0. The peptidoglycan contained type A3αl-Lys-Gly4-l-Ser-Gly. Based on chemotaxonomic and genomic characteristics, strain 17KM0847T (=DSM 120281T; =CCOS 2136T; =CCM 9521T) represents a novel species of the genus Staphylococcus, for which the name Staphylococcus xeri sp. nov. is proposed.
PMID:
42554731
Bibliographic data and abstract were imported from PubMed on 06 Aug 2026.
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