2020
DOI: 10.1590/1678-4162-11284
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Detection of icaA, icaD, and bap genes and biofilm production in Staphylococcus aureus and non-aureus staphylococci isolated from subclinical and clinical bovine mastitis

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Cited by 9 publications
(4 citation statements)
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“…The icaABCD operon is the most studied Staphylococcus biofilm forming genes and it is most frequently reported in mastitis isolates highlighting their potential to form biofilm 30 . In the current study, the icaC gene was the most prevalent in clinical and subclinical isolates, in contrast to a previous report of which icaA and icaD are the most prevalent 31 . Also, the finding of this study observed that coagulase negative Staphylococcus (CoNS) and S. aureus possessed the icaA and/or icaD gene in contrast with a previous findings that the icaA was only observed in CoNS strain while the icaD was found both in CoNS and S. aureus .…”
Section: Discussioncontrasting
confidence: 99%
“…The icaABCD operon is the most studied Staphylococcus biofilm forming genes and it is most frequently reported in mastitis isolates highlighting their potential to form biofilm 30 . In the current study, the icaC gene was the most prevalent in clinical and subclinical isolates, in contrast to a previous report of which icaA and icaD are the most prevalent 31 . Also, the finding of this study observed that coagulase negative Staphylococcus (CoNS) and S. aureus possessed the icaA and/or icaD gene in contrast with a previous findings that the icaA was only observed in CoNS strain while the icaD was found both in CoNS and S. aureus .…”
Section: Discussioncontrasting
confidence: 99%
“…The icaADBC locus contains the most studied Staphylococcus bio lm forming genes and 26 it is most frequently reported in mastitis isolates. In the current study, the icaC gene was the most prevalent in subclinical isolates, in contrast to previous report of which icaA and icaD are the most prevalent 27 . The most prevalent bio lm regulatory genes were rbf, tcaR, sarA and sigB.…”
Section: Discussioncontrasting
confidence: 99%
“…As noted here, most Staphylococcus involved with subclinical mastitis can form biofilms. While biofilm formation is known to be a multifactorial feature, it is strongly related to the production of two of the most studied factors: (i) the surface protein Bap (biofilm-associated protein) and (ii) the products of the ica operon, which coordinate the synthesis and export of the most important adhesive molecule of staphylococcal biofilms, the (exo)polysaccharide intercellular adhesion (PIA), also called poly-N-acetylglucosamine or PNAG (Otto 2013; Salina et al ., 2020). Even though bap and icaA are widespread among staphylococci, we found no significant correlation between genotype (the presence of these genes) and phenotype (biofilm production).…”
Section: Discussionmentioning
confidence: 99%