First investigation of Staphylococcus argenteus in a Brazilian collections of S. aureus isolated from bovine mastitis.
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ABSTRACT: Background
Staphylococcus argenteus is a new specie positive coagulase staphylococci. We investigate the presence of S. argenteus in isolates previously classified as S. aureus, obtained from the milk of cows with mastitis in Brazil.Results
Among 856 S. aureus tested in chocolate agar, tryptone soya agar and salt egg yolk agar, white or colorless colonies were observed in 185 (21.6%) isolates. Regarding the ctrOPQMN operon, 111 (60%) presented the complete cluster. Despite some missing genes in this cluster, the remaining strains (74) were confirmed as S. aureus using the nrps gene.Conclusions
As far as we know, this is the first review of S. aureus collection in Brazil and S. argenteus does not appear to be a significant problem in Brazilian herds.
SUBMITTER: Rossi BF
PROVIDER: S-EPMC7372812 | biostudies-literature | 2020 Jul
REPOSITORIES: biostudies-literature
Publications
First investigation of Staphylococcus argenteus in a Brazilian collections of S. aureus isolated from bovine mastitis.
Rossi Bruna F BF Bonsaglia Érika C R ÉCR Castilho Ivana G IG Dantas Stéfani T A STA Langoni Hélio H Pantoja José C F JCF Júnior Ary Fernandes AF Gonçalves Juliano L JL Santos Marcos V MV Mota Rinaldo A RA Rall Vera L M VLM
BMC veterinary research 20200720 1
<h4>Background</h4>Staphylococcus argenteus is a new specie positive coagulase staphylococci. We investigate the presence of S. argenteus in isolates previously classified as S. aureus, obtained from the milk of cows with mastitis in Brazil.<h4>Results</h4>Among 856 S. aureus tested in chocolate agar, tryptone soya agar and salt egg yolk agar, white or colorless colonies were observed in 185 (21.6%) isolates. Regarding the ctrOPQMN operon, 111 (60%) presented the complete cluster. Despite some m ...[more]
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