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ID number:278972
 
Evaluation:
Published: 19.04.2006.
Language: Latvian
Level: Secondary school
Literature: 3 units
References: Not used
Extract

Gram pozitīvi koki. Aug kēdītē vai pa pāriem. Nosaukums nāk no grieku vārda streptos, kas nozīmē – viegli saliekts vai salocīts kā kēde) – pretstats Stafilococcus, kuru šūnas ir kekaros, atgādina vīnogu kekaru. Aug uz parastā agara un asins agara. Antibiogrammu veic uz asins agara. Kolonijas nepigmentētas. Pēc biokīmiskajām īpašībām samērā neaktīvi: nekustīgi; katalāze “–“ (stafilokokiem “+”); hemolīze “” “” “–“; želatīnu neškidrina (patogēnie stafilokoki škidrina); citrāts “–“; ureāze “–“; glikozi, saharozi var škelt, var neškelt; laktoze “+” (piens, lakmusa piens); maltoze “–“, mannīts “+”; buljons dzidrs, irdenas nogulsnes un diezgan maz; P.S. dulcīts,sorbīts paredzēts Gram (-) (negatīviem). Streptokokus nosaka uz to serulogisko īpašību pamata.…

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