Put a taxos A disc (impregnated with bacitracin) on the Streptococcus pyogenes and Streptococcus ... If the nitrate broth turns red (tubes pictured in the center) after nitrate I and nitrate II are ...
Bacitracin is a polypeptide antibiotic that is chemically unrelated to neomycin. It inhibits bacterial cell wall synthesis. It is produced by Bacillus subtilis (Gehrig & Warshaw, 2008). Bacitracin ...
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