Cellular elongation under the influence of antibacterial agents: way to differentiate coccobacilli from cocci.
Representatives of Moraxella, Acinetobacter, and various other groups of short, gram-negative bacilli are readily distinguished from Neisseria by microscopic observation of filaments produced by the rods during growth in the presence of low concentrations of penicillins or sulfadiazine. Wet mounts of bacteria from routine antibiotic susceptibility test cultures are satisfactory for examination of morphology.
D000150:Acinetobacter / Q000145:classification / Q000187:drug effects / Q000254:growth & development*; D009016:Moraxella / Q000145:classification / Q000187:drug effects / Q000254:growth & development*; D009343:Neisseria / Q000145:classification / Q000187:drug effects / Q000254:growth & development*; D010406:Penicillins / Q000494:pharmacology*; D013411:Sulfadiazine / Q000494:pharmacology*
D010406:Penicillins; D013411:Sulfadiazine