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Old 05-13-2012
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Bacteria Indole positivity?

what does it mean if a bacteria tests positive for indole?
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http://en.wikipedia.org/wiki/Indole_...itive_Bacteria

I think its used for Proteus.
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Old 05-13-2012
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Quote:
Originally Posted by Dr.NickRiviera View Post
what does it mean if a bacteria tests positive for indole?
Is a test that can be used to differentiate between E. coli from Klebsiella. Adding tryptophan to the culture ---> E. coli will split indole from tryptophan but klebsiella won't.

E. coli (+) = pink
Klebsiella (-) = yellow

They are both gram negative rods, fast lactose fermenters, and they both can cause nosocomial urine tract infections. (Yeah, I know E. Coli>>>Klebsiella, but Klebsiella is the second most common cause)

P.S.
Proteus is non-lacotes fermenter
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Old 05-14-2012
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Quote:
Originally Posted by Dr. Mexito View Post
Is a test that can be used to differentiate between E. coli from Klebsiella. Adding tryptophan to the culture ---> E. coli will split indole from tryptophan but klebsiella won't.

E. coli (+) = pink
Klebsiella (-) = yellow

They are both gram negative rods, fast lactose fermenters, and they both can cause nosocomial urine tract infections. (Yeah, I know E. Coli>>>Klebsiella, but Klebsiella is the second most common cause)

P.S.
Proteus is non-lacotes fermenter
the perfect answer.
thank you!!
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