| Autor: |
Kanellos TS; Royal Veterinary College, London., Burriel AR |
| Jazyk: |
angličtina |
| Zdroj: |
The new microbiologica [New Microbiol] 2002 Jul; Vol. 25 (3), pp. 367-73. |
| Abstrakt: |
Coagulase-negative staphylococci producing cell-damaging toxins were isolated from the milk of sheep with subclinical mastitis. The haemolytic activity of Coagulase-negative staphylococcal strains was assessed on solid and liquid culture media. More than 61% and 76% of the tested strains on solid media produced evidence of alpha- and delta- haemolysins and more than 78% produced synergistic haemolysis. However almost all isolates producing haemolysin in liquid culture media produced only very few units of haemolysin compared to the positive control of five Coagulase-positive strains of staphylococci. It was concluded that solid media are better for classifying Coagulase-negative staphylococci as producers or not of haemolysins, and liquid media for measuring the size of this activity within the first few hours of intramammary infection. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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