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(Science: microbiology) Rod-shaped bacterial cells.

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How to maintain sterility while preparing petri dishes

... A small colony would be the size of a pin-prick or similar. Well, difficult to say without further details, but it could be that you have some Bacilli contaminating your agar or other supplies - many of them they are very common in e.g. soil and they form resilient spores that can withstand ...

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by biohazard
Fri Jun 28, 2013 10:04 am
Forum: Microbiology
Topic: How to maintain sterility while preparing petri dishes
Replies: 8
Views: 6461

Gram Positive Cocci

... stain: Gram positive, appears to be cocci, but not perfectly round and tend to group together in pairs (which appear as though it is a short fat bacilli) or irregular clusters. Blood Agar: Gamma hemolytic EMB: Colorless growth (does not ferment lactose) MS Agar: No growth TSI: Yellow butt, yellow ...

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by lucrezia03
Wed Oct 17, 2012 11:58 pm
Forum: Microbiology
Topic: Gram Positive Cocci
Replies: 2
Views: 5372

Re: Kindly help me fill up this. (NOCARDIA)

Try an acid fast stain. It's either nocardia or TB when the test is positive Actually, Nocardia are partially acid fast. Gram +ve bacilli + coccobacilli with branching filaments (fungus-like) partially acid fast Catalase+ Urease+ ID by morphology, confirm by molecular tests. Tests that ...

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by Cat
Sun Sep 16, 2012 12:04 am
Forum: Microbiology
Topic: Kindly help me fill up this. (NOCARDIA)
Replies: 6
Views: 3471

Unknown Organism

I need help identifying my unknown by Monday. Here are the results. 1. Gram Stain Positive (Clustered Bacilli) 2. Capsule Negative 3. Endospore Negative* 4. Phenol Red Broth Fermentation with Acid and Gas end products 5. Nitrate Reduction NO3 --> NO2 6. Urea Hydrolysis ...

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by CheriPeace
Fri Jun 29, 2012 9:08 pm
Forum: Microbiology
Topic: Unknown Organism
Replies: 5
Views: 5976

Re: Microbiology help in identifying Gram + rod for my unknown

I am so confused... My unknown is due tomorrow and I want to make sure I am correct before I turn it in.. Cell Shape: Bacilli Arrangement: Diplibacilli Size: 2mm X .5mm Gram Stain: Negative Motility: Yes Glucose Fermanation: yes acid/gas Lactose " ": yes acid/gas Mannitol ...

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by sunshineshoes
Tue Jun 26, 2012 1:02 pm
Forum: Microbiology
Topic: Microbiology help in identifying Gram + rod for my unknown
Replies: 12
Views: 10860
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