Knut Ohlsen

TL;DR: It was shown that S. epidermidis biofilm formation is induced by external stress (i.e., high temperature and osmolarity), and subinhibitory concentrations of tetracycline and the semisynthetic streptogramin antibiotic quinupristin-dalfopristin were found to enhance ica expression.

TL;DR: The repaired RN1 is a good model strain for studies of staphylococcal regulation and pathobiology; although strain Newman has been used extensively for such studies in recent years, it has a missense mutation in saeS, the histidine kinase component of the sae signaling module, which profoundly alters its regulatory phenotype.

TL;DR: The emergence of methicillin-resistant Staphylococcus aureus in animals such as horses, pet animals and productive livestock has raised questions of a probable human origin and in more general of host specificity of S. aUREus.

TL;DR: A critical role is suggested in S. aureus biofilm regulation under environmental stress conditions and implementation of the mutant strain with an expression plasmid encoding sigma(B) completely restored the wild-type phenotype.

TL;DR: A review of the structure–activity relationships and the modes of action of the various series of mono‐ and bisquaternary ammonium compounds found to have improved antimicrobial activity against mycobacteria and protozoa.