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Microbiology Lab Test 1, 4-3 MSA Plate

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7 things needed to know for the MSA plate: name
MSA plate, Mannitol Salt agar
7 things needed to know for the MSA plate: appearance
red, color of biohazard bags
7 things needed to know for the MSA plate: ingredients
pH indicator = phenol red
mannitol = carbohydrate
7.5 % NaCl
7 things needed to know for the MSA plate: purpose
grow and identify Staph aureus
7 things needed to know for the MSA plate: Selective
selective for gram (+) organisms
salt (NaCl) inhibits nonhalophiles
inhibits non staph organisms, gram (-) organisms, and nonhalophiles
7 things needed to know for the MSA plate: differential
pH indicator = phenol red
carbohydrate = mannitol
7 things needed to know for the MSA plate: results
yellow growth = halophile ferments mannitol (S aureus)
red/pink = staph other than staph aureus
poor/no growth = nonhalophile, non staph, gram (-)