Question

what results would you get when testing these organisms (Klebsiella pneumoniae, Escherichia coli, Staphylococcus saprophyticus, Proteus mirabilis, Proteus vulgaris, Providencia stuarti, Pseudomonas aeruginosa, Enterobacter aerogenes, Morganella morganii)

Tests being run:
MacConkey agar test, a Gram staining test, SIM agar and Urea agar

(just indicate if results are negative or positive)

Answer 1

Klebsiella pneumoniae - MacConkey agar positive (lactose fermenter), gram negative, SIM agar negative (non motile), urea agar positive.

Escherichia coli - MacConkey agar positive, gram negative, SIM agar (hydrogen sulfide negative, indole positive, motile), urea agar negative.

Staphylococcus saprophyticus - MacConkey agar positive, gram positive, SIM agar (hydrogen sulfide positive, non-motile), urea agar positive.

Proteus mirabilis - MacConkey agar negative (colourless colony), gram negative, SIM agar (hydrogen sulfide positive, indole negative, motile), urea agar positive.

Proteus vulgaris - MacConkey agar negative, gram negative, SIM agar (hydrogen sulfide positive, indole positive, motile), urea agar positive.

Providencia stuartii - MacConkey agar negative, gram negative, SIM agar (hydrogen sulfide negative, indole positive, motile), urea agar negative.

Pseudomonas aeruginosa - MacConkey agar negative, gram negative, SIM agar (hydrogen sulfide negative, indole negative, motile), urea agar negative.

Enterobacter aerogenes - MacConkey agar positive, gram negative, SIM agar (hydrogen sulfide negative, indole negative, motile), urea agar negative.

Morganella morganii - MacConkey agar negative, gram negative, SIM agar (hydrogen sulfide negative, indole positive, motile), urea agar positive.