Hydrophobicity of ruminant mastitisStaphylococcus aureus in relation to bacterial aging and slime production

Application of a Rat Osteomyelitis Model to Comparein Vivoandin Vitrothe Antibiotic Efficacy against Bacteria with High Capacity to Form Biofilms

“…Staphylococcus aureus strain ATCC 29213 slime producing (SP) variant was used. This variant was produced in our laboratory from the original non-slime producing (NSP) isolate by selecting for adherent colonies, as previously described [15]. SP variant was distinguished from NSP variant by the colony morphology in Congo red agar [15,16], the former having a rough type and the latter a smooth type of colony morphology in this agar.…”

“…SP variant was distinguished from NSP variant by the colony morphology in Congo red agar [15,16], the former having a rough type and the latter a smooth type of colony morphology in this agar. It was also distinguished by the higher ability of SP cells to adhere to inert surfaces, with regard to NSP cells [15,17].…”

Adherence of Staphylococcus aureus slime-producing strain variants to biomaterials used in orthopaedic surgery

“…Two variants were available from each of the strains: 72-, 80-and 510-(the NSP variant of the corresponding strain) and 72+, 80+ and 510+ (the SP variant of each strain). These were produced in our laboratory from the original NSP isolates as described in our previous studies [5]. SP strain variants were distinguished from NSP by their colony morphology in Congo Red agar, as previously described for coagulase-negative staphylococci [12] and for S. aureus [5].…”

“…A particular strain of S. aureus may present two variants, slime-producing (SP) and nonslime-producing (NSP), both of which can be obtained from each other in the laboratory [5]. Many other bacterial species, including coagulase-negative staphylococci, have this property [16].…”

Factors involved in the early pathogenesis of bovineStaphylococcus aureusmastitis with emphasis on bacterial adhesion and invasion. A review

“…The slime production is strain-dependent and phase variation in slime production is observed (12 Slime-producing variants from ovine intramammary infections showed a significantly higher colonization capacity than the non-slime producing variants of the same strain, even though non-slime producing strains showed higher virulence compared to slime-producing variants as was shown by clinical, bacteriological and post mortem examinations (11). It was also reported that slime-producing strains from ovine and bovine intramammary infection showed higher adhesion to cultured ovine mammary gland epithelial cells than a non-slime-producing variant (2).…”