Term
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Definition
| Uses two stains; Allows us to differentiate between two organisms |
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Term
| Types of differential staining |
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Definition
| Gram Stain, Acid-Fast Stain, Spore Stain |
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Term
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Definition
| Differential staining technique using crystal violet and safranin dies that separate bacteria into two large categories: gram (+) and gram (-). |
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Term
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Definition
| uses a negatively charged stain like nigrosin, which is not taken up by the cytoplasm of negatively charged bacteria. Background is stained, not the bacteria. |
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Term
| Bacteria commonly viewed with negative stain |
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Definition
| Streptococcus pneumonia, Klebsiella pneumonia, Clostridium perfringens: bacteria with well-developed capsules |
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Term
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Definition
| The primary dye, malachite green, dies the spore wall, but is washed off the cell wall with a decolorizer. Cell walls are counterstained with safranin. Spores left green. Used with Bacillus and Clostridium. |
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Term
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Definition
| Stains the cells of the genera Mycobacterium and Nocardia. Their cell walls have a waxy lipid substance and do not take water based stains well. The cell is determined to be acid-fast or not if it holds the primary stain. |
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Term
| Gram category and morphology of Bacillus |
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Definition
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Term
| Gram category and morphology of Clostridium |
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Definition
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Term
| Gram category and morphology of Staphylococcus |
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Definition
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Term
| Gram category and morphology of Streptococcus |
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Definition
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Term
| Gram category and morphology of Escherichia |
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Definition
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Term
| Gram category and morphology of Klebsiella |
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Definition
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Term
| Gram category and morphology of Mycobacterium |
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Definition
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Term
| Gram category and morphology of Neisseria |
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Definition
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Term
| Gram category and morphology of Pseudomonas |
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Definition
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Term
| Gram category and morphology of Salmonella |
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Definition
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