SYNTHESIS OF VIRULENCE FACTORS BY PASTEURELLA PESTIS
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چکیده
منابع مشابه
Factors influencing the loss of virulence in Pasteurella pestis.
It was found in a previous investigation that various virulent strains of Pasteurella pestis showed a reduction in virulence in aerated broth at 37 C whenever several generations of growth occurred either from small inocula (104 cells/ml) or after repeated passage using larger inocula (Fukui, et al., 1957b). This attenuation seemed to be caused by growth conditions favoring the selection of avi...
متن کاملInfectivity and virulence of nonpesticinogenic Pasteurella pestis.
Nonpesticinogenic Pasteurella pestis, which is also negative for coagulase and fibrinolytic activities and therefore referred to as (PI-C-F)(-), was investigated to determine whether greatly reduced and erratic lethal responses observed in mice and guinea pigs might be due to inability of the inoculum to establish infection and multiply in survivors. Immunity of survivors was regarded as an ind...
متن کاملColonial morphology and virulence of Pasteurella pestis.
The relationship of the colonial morphology of Pasteurella pestis to its virulence has been controversial. Gotschlich (1900), Markl (1914), Petrie (1929), Burgess (1930), Otten (1936), Bhatnagar (1940) and Jawetz and Meyer (1943) described numerous colonial types for which interchangeable descriptions are lacking. Most agreed upon an inconstant hereditary transmission of colonial characteristic...
متن کاملPasteurella pestis: growth temperature, virulence, and the graded response.
Rosenwald, Albert J. (Fort Detrick, Frederick, Md.), and Ralph E. Lincoln. Pasteurella pestis: growth temperature, virulence, and the graded response. J. Bacteriol. 91:1693-1695. 1966.-A comparison of the virulence of Pasteurella pestis was made by the graded and quantal response methods. Both tests reflected the difference in virulence of cultures grown at three temperatures. Cultures grown at...
متن کاملCoagulation of human plasma by Pasteurella pestis.
Mushin and Kerr (1954) reviewed the literature describing the coagulation of various plasmas by intestinal gram-negative bacilli. There was agreement that these organisms coagulated citrated plasma because they metabolized citrate and released calcium ions. Other gram-negative bacilli have been found to coagulate both citrated and oxalated plasma. Billaudelle (1955) observed that fluid media co...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1961
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.81.4.656-660.1961