Thermal Inactivation, Heat Injury, and Recovery of Staphylococcus Aureus
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چکیده
منابع مشابه
Heat inactivation of catalase from Staphylococcus aureus MF-31.
The effects of heat on catalase from Staphylococcus aureus lysates were examined. Catalase activity increased with increasing concentrations of potassium phosphate buffer, when heated at temperatures between 50 and 65 degrees C for 10 min. Inactivation of catalase by NaCl during heating was demonstrated. Extended heating of S. aureus cells at 52 degrees C resulted in a slight decrease in catala...
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Substitution at codon Ser315 of katG gene, a reliable marker for isoniazid (INH) resistance and proliferate in spite of the loss of cell wall is called an L- form. Unstable L- forms can convert to normal cells but stble L-forms can not.cell wall - deffective state may be induced spontaneously or through the action of an appropriate agent such as antibiotic interfering with the synthesis of cel...
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Benner, Ernest J. (University of Washington School of Medicine, Seattle), John V. Bennett, Jean L. Brodie, and William M. M. Kirby. Inactivation of cephalothin and cephaloridine by Staphylococcus aureus. J. Bacteriol. 90:1599-1604. 1965.-Marked differences were observed in the susceptibility of penicillinase-producing staphylococci to cephalothin and cephaloridine. All of 100 strains of penicil...
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Three types of Staphylococcus aureus strains were isolated with respect to streptomycin (SM) and spectinomycin (SPC) resistance, namely, SM(r)SPC(r), SM(r)SPC(s), and SM(s)SPC(r) (r, resistant; s, sensitive). Curing experiments and transduction analysis of strain MS7990 (SM(r).SPC(r).EM(r)) (EM, erythromycin) disclosed that the loci governing SM and SPC resistance are different and exist on dif...
متن کاملCatalase activity during the recovery of heat-stressed Staphylococcus aureus MF-31.
Sublethal heating of Staphylococcus aureus produced little loss of catalase activity, but incubation of the injured cells in tryptic soy broth, with or without 10% NaCl added, produced an 85% decrease in catalase activity. Cells recovered in tryptic soy broth demonstrated increases in catalase levels after approximately 5 h, whereas in tryptic soy broth with 10% NaCl the levels remained low for...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1965
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(65)88321-7