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Published byAlvin Jefferson Modified over 9 years ago
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226 PHT Final Spots
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Gram’s stain
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Results: Shape: Cocci Arrangment: irregular clusters Colour: Violet Gram’s reaction: Gram’s +ve Name of microorganism: Staphylococci
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Results: Shape: Oval Arrangment: Single Colour: Violet Gram’s reaction: Gram’s +ve Name of microorganism: Candida
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Results: Shape: Bacilli Arrangment: Chains Colour: Violet Gram’s reaction: Gram’s +ve Name of microorganism: Bacillus
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Results: Shape: Rods Arrangment: Single Colour: red Gram’s reaction: Gram’s –ve Name of microorganism: Gram negative bacilli Gram negative bacilli
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Negative staining Candida
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Negative staining Staphylococci
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Negative staining of Bacillus
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Results Type of Staining: Acid fast stain Shape: beaded bacilli Arrangement: Tree shaped Colour: red Name of microorganism: M.phelei
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Spore Stain of Bacillus subtilis Type of Staining: Spore stain Shape: bacilli Arrangement: Chains Colour of spores: green Colour of vegetative cells: red Name of microorganism: B. subtilis
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Nutrient agar plate Nutrient agar slant Nutrient broth Simple media
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Enriched media Serum agar blood agar
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non-hemolytic Sterptococci. β -hemolytic Sterptococci. α -hemolytic Sterptococci. Hemolysis of blood agar
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Selective medium L-J
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Selective medium Cetremide agar of pseudomonas
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Growth with yellow colour around the coloniesS.aureus Growth without change in the colour of the mediumS.epidermidis 1-Mannitol salt agar Selective and differential media:
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Lactose fermenter Pink colonies Lactose non-fermenterPale colonies 2-MacConkey agar
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Cooked meat
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Anaerobic Jar
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Results: Positive test: formation of visible clot. Coagulase +ve S.aureus Coagulase -ve S.epidermidis 1- Coagulase Test:
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2-Oxidase test: Results: +ve Test: Appearance of purple colour within 1-2 min. purple colour +ve test No colour -ve test
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Results: +ve-ve 3- Urease Test:
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1. Sugar fermentation: GlucoseMaltose Sucrose GlucoseMaltose Sucrose Sugar fermentation can be indicated by change of color of the medium from red to yellow. +ve - ve +ve+ve
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Results: Butt: Slant: H 2 S Production: acidic (yellow) -ve acidic (yellow) alkaline (red) -ve acidic (yellow) alkaline (red) +ve 2- Triple Sugar Iron (TSI) agar:
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O - /F - O + /F + O + /F - O - /F + Results: Fermentative Oxidative Non Saccharolytic Positive Test: 3-O/F Test (Oxidation Fermentation Test)
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Positive Test: 4-Sensitive Oxidation Fermentation (O/F)Test: O - /F - O + /F + O + /F - O - /F + Results: Fermentative Oxidative Non Saccharolytic
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Results: +ve -ve 1- Indole test
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Methods for determination of MIC
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E-test:-
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Elek’s Toxigenicity Test:
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