Microbiology help

[monet]

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What does the term optochin sensitive mean?

 

[monet]

also, the term lecithinase. I know it is an enzyme, but that's about it...

 

[doc05]

here's an idea. pick up a textbook and try reading.

 

[Street Philosopher]

Originally posted by monet
What does the term optochin sensitive mean?

it means it is sensitive to optochin

 

[Street Philosopher]

Originally posted by monet
also, the term lecithinase. I know it is an enzyme, but that's about it...

it's an enzyme involved with lecithin

 

[monet]

you guys are such worthless jackasses

 

[Street Philosopher]

sticks and stones may break my bones, but words from an intellectually lazy internet poster will never hurt me

 

[klinzou]

physically lazy as well. I mean for real....you obiviously have the internet, ever heard of google?

 

[mongoose]

optichin sensitivity tests are used to differentiate strep viridans, strep pneumoniae and group D strep (the alpha hemolytic strep group). actually, a set of 4 tests is used, which consists of Bile Esculin test, BHI 6.5% NaCl test, Optichin sensitivity test, and Bile solubility test. The Group D strep will test -,+,-,- respectively, the strep pneumoniae will test -,-,+,+ and the strep viridans will test -,-,-,- with this battery of tests.

i would assume lecithinase will convert lecithin into two molecules, since -ase enzymes typically break a bond of some sort.

 

[ItsGavinC]

Originally posted by klinzou
physically lazy as well. I mean for real....you obiviously have the internet, ever heard of google?

What is the URL for Google?

 

[Street Philosopher]

i dunno, i had to search for it on yahoo

 

[Dr Rich]

I really hope you're only starting micro, lecithinase is an enzyme produced by some clostridia, including c. perfringens, responsible for the Nagler reaction used to identify them.

 

[ItsGavinC]

Originally posted by Street Philosopher
i dunno, i had to search for it on yahoo

Dammit. I'm out of chocolate milk. Where else can I search for Google?

 

[jed2023]

Optochin is used to distinguish Streptococcus pneumoniae, which is optochin sensitive, from other alpha-hemolytic strep species (especially Viridans streptococci), which are not optochin sensitive. To be optochin sensitive means that it inhibits their growth, typically in the setting of an agar plate.