I come from purely a clinical perspective, with really no experience
with any other type of microbiology. I didn't realize that this stuff
would grow without blood enrichment. I was purely going by the fact
that, even with blood agar, these organisms don't grow very fast.
You're right about blood agar - that's why we use it to grow human
pathogens.
Thanks for the information. I think I'll stick to clinical questions
from now on :-).
Judy Dilworth, M.T. (ASCP)
Microbiology
Lesley Robertson wrote:
> I don't know about the last 2, but the other 3 will grow without blood.
> Indeed, Lactobacilli like tomato juice! I don't encourage beginners to use
> blood plates - you never know what'll turn up and our biosafety laws are now
> incredibly strict!
>> Colony counting is not a good way to compare growth rates - not all bacteria
> give 100% recovery on agar, and the results will take several days (at
> least) to collect. You'd be better measuring optical density.
> Lesley Robertson
>http://www.beijerinck.bt.tudelft.nl
