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Oxidase reaction

oxidase reaction

The formation of indol blue when a blood smear containing myeloid leukocytes is treated with a mixture of alpha-naphthol and p-dimethylaniline sulfate; the myeloid leukocytes contain an oxidase that catalyses this reaction, the lymphoid leukocytes do not, in bacteriology, a reaction that depends on the presence of certain oxidases in some bacteria that catalyze the transport of electrons between electron donors in the bacteria and an oxidation reduction dye, such as tetramethyl-p-phenylenediamine; the dye is reduced to a blue or black colour.


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Streptococcus sanguis??

Hey guys have i correctly matched up my micro - organism? Gram reaction:+ Shape: cocci Acid-fast: - Spores: - Motility: - Grows in air: + Grows anaerobically: + Catalase: - Oxidase: - Acid from glucose: + OF test: : F Gas from glucose: - Acid from sucrose: + ...

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by microbiologyhelp
Fri Dec 20, 2013 10:08 pm
 
Forum: Microbiology
Topic: Streptococcus sanguis??
Replies: 1
Views: 2426

ID OF UNKNOWN?!?!

... in microbiology classes, so far the results obtained indicate Gram reaction:+ Shape: cocci Acid-fast: - Spores: - Motility: - Grows in air: + Grows anaerobically: + Catalase: - Oxidase: - Acid from glucose: + OF test: : F Gas from glucose: - Acid from sucrose: ...

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by microbiologyhelp
Fri Dec 06, 2013 10:59 am
 
Forum: Microbiology
Topic: ID OF UNKNOWN?!?!
Replies: 5
Views: 3796

Re:

... thanks for the reply I did further research and found out that... Gram reaction:+ Shape: cocci Acid-fast: - Spores: - Motility: - Grows in air: + Grows anaerobically: + Catalase: - Oxidase: - Acid from glucose: + OF test: : F Gas from glucose: - Acid from sucrose: ...

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by microbiologyhelp
Sun Dec 01, 2013 11:36 am
 
Forum: Microbiology
Topic: URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!
Replies: 7
Views: 6189

URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!

... in chains, splotches, and red/pink. Blue Vegetative cells. SPORE REACTION (-) ACID FAST STAINING (-) NUTRIENT BROTH CULTURE- Quite turbid, ... TEST: Negative ANTIBIOTIC SENSITIVITY- Resistant. CATALASE- NEGATIVE OXIDASE- POSITIVE FERMENTATION: OF GLUCOSE – NEGATIVE, MANNITOL – NEGATIVE, ...

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by microbiologyhelp
Wed Nov 20, 2013 6:09 pm
 
Forum: Microbiology
Topic: URGENT HELP IDENTIFYING UNKNOWN BACTERIA!!!
Replies: 7
Views: 6189

Please Help Identify My Unkown Bacteria!!

... not acid fast NEGATIVE for casein, starch hydrolysis Produces acid reaction with litmus milk Fermentaion of sucrose, glucose, lactose & ... ( produced nitrous acid) Pos TSI (hydrogen sulfide produced) Neg oxidase Pos catalase Neg Urea Possible bacteria I am considering, using Bergy ...

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by KingsMomi
Tue Jul 31, 2012 3:40 am
 
Forum: Microbiology
Topic: Please Help Identify My Unkown Bacteria!!
Replies: 2
Views: 4281
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