Term
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Definition
| learning as many characteristics as possible and decided how the organisms should be arranged |
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Definition
| arranging bacteria with similar phenotypic and genotypic characteristics into groups |
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Term
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Definition
| naming bacteria according to the international code of principles, rules, and recommendations |
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Term
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Definition
| comparing of unknown organisms with bacteria that have already been classified to identify the unknown bacteria |
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Term
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Definition
| members of the same species of different characteristics, so taxonomists find a "type strain" that has the most average bacteria and use it as an example of that bacteria |
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Term
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Definition
| the variations in bacterial colony size, shape, color, odor, and texture |
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Term
| direct examination of bacteria |
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Definition
| look at the microscopic morphology and staining reactions. |
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Term
| growth characteristics of a bacterial colony |
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Definition
| oxygen, temperature, and pH requirements |
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Term
| culture and biochemical characeristics of bacterial colonies |
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Definition
| assay for virulence factors, find if it will grow on certain substrates (substrate utilization), types of byproducts after respiration. |
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Term
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Definition
| classify a strain of a particular species by testing for presence of specific cell wall, flagellar, capsular antigens, or other antigens |
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Term
Cell Wall antigen:
Flagellar antigen:
Capsular antigen: |
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Definition
Cell Wall antigen: O
Flagellar antigen: H
Capsular antigen: K |
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Term
| genetic classifications of bacteria |
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Definition
1. G+C percentage in DNA (guanine and cytosine)
2. DNA homology - formation of molecular hybrids from 2 DNA strands of different origin
3. RNA homology
4. Nucleic acid probe - added directly into DNA or RNA for rapid ID of bacteria
5. DNA and RNA sequencing
6. Microarrays - tell you if a certain gene is being expressed- DNA computer chip
7. PCR |
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