click below
click below
Normal Size Small Size show me how
Agar plates
Medical Microbiology
agar plate | selectivity and differential |
---|---|
MSA | Mannitol Salt agar selectivity: Growth (+)= staphylococci Growth (-)= Everything else Differential: Mannitol fermentation (+) = Yellow (-) = red |
EMBA | Eosin Methylene Blue Agar selectivity: Growth (+)= Gram (-) Growth (-)= Gram (+) Differential: Lactose fermentation (+) = high=green low= pink (-) = colony color |
HEA | Hekton Enteric Agar selectivity:Bile salt tolerance Growth (+)= Gram (-) Differential: Sugar fermentation (+) = Yellow H2S formation= black precipitate |
BEA | Bile Esculine Agar selectivity: BIle tolerance Differential: Esculine hydrolysis= black precipitate |
XLD | Xylose Lysine Desoxycholate selectivity: Sodium desoxycholate Gram (-) Differential: Sugar fermentation= yellow H2S formation= black precipitate |
MacConkey | selectivity: Crystal Violet Gram (-) Differential: Lactose fermentation (+) = pink (-) = colony color |