COAGULASE-NEGATIVE MUTANTS OF STAPHYLOCOCCUS AUREUS : GENETIC STUDIES
نویسندگان
چکیده
منابع مشابه
The behavior of UV-induced coagulase-positive and negative mutants of Staphylococcus aureus.
The role of coagulase in staplhylococcal infections is tincertain. It has been clemonstrated(1) that coagulase-negative hemolytic staphylococci wllen treated witlh coagulase and injected intracerebrally into mice exlhibit a higlher degree of virulence than the same organisms without treatment with coagulase. Other workers(2,3) have also found an association of coagtulase with virulence. However...
متن کاملIdentification of slide coagulase positive, tube coagulase negative Staphylococcus aureus by 16S ribosomal RNA gene sequencing.
AIMS To ascertain the clinical importance of a strain of slide coagulase positive but tube coagulase negative Staphylococcus species isolated from the blood culture of a 43 year old patient with refractory anaemia with excessive blasts in transformation who had neutropenic fever. METHODS The isolate was investigated phenotypically by standard biochemical methods using conventional biochemical...
متن کاملBacteriocin Activity of Staphylococcus Aureus, Staphylococcus Intermedius and Coagulase-negative Staphylococcal Strains
Skalka B.: Bacteriocin Activity of Staphylococcus aureus, Staphylococcus intermedius and Coagulase-n.egative Staphylococcal Strains. Acta vet. Brno, 55, 1986: 65-72. A total of 567 staphylococcal strains was examined for bacteriocin activity. It contained 367 S. aureus strains, 114 S. intermedius strains, and 86 coagulasenegative staphylococci belonging to ten species. The deferred method was e...
متن کاملVariation of bound coagulase of Staphylococcus aureus.
Duthie (1954) reported that bound coagulase (clumping factor) of staphylococei is released from the surface of autolysing cells into the medium of old broth cultures. Rosenblum and Jackson (1957) noticed occasional alteration of bound coagulase and pigment production after storage of staphylococci for months to years. Decrease in bound coagulase activity of freshly isolated hospital strains of ...
متن کاملHomology Modeling of Coagulase in Staphylococcus aureus
The close correlation between the ability of coagulase to clot blood plasma and their capacity to produce disease, and the corresponding absence of this property in nonpathogenic strains, have led to the assumption that the coagulase, plays important role in the pathogenesis of disease. Currently, crystal structure of coagulase in Staphylococcus aureus remains indefinable. Thus, the objectives ...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1963
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.86.3.363-369.1963