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Microbiology

Exam 03 - Bacteria - Bergey's Volume 4

QuestionAnswer
What is listed in Bergey's Volume IV? High G+C Bacteria
What is the main Phylum in High G+C bacteria? Phylum Actinobacteria
Describe Corynebacterium 1. C. diphtheriae - causes diphtheria 2. arranged in palisades 3. club-shaped 4. produces volutin - turns off in diff colors w/diff stain 5. metachromatic granules
Describe Gardnerella 1. anaerobes 2. causes opportunistic diseases - vaginal infections 3. epithelial cells (clue-cells) covered w/gardnerella
Describe Mycobacterium 1. causes tuberculosis 2. M. leprae - causes Hansen's disase 3. M. leprae can't grow in pure culture, takes ~couple of weeks 4. Gram + but don't stain well due to lipids on cell walls 5. Need to acid-fast stain
Describe Propionibacterium 1. Deos propionic acid fermentation 2. production of swiss cheese 3. associated w/skin lesions (acne) 4. gram + 5. pleomorphic rods 6. facultative or anaerobic
Describe Streptomyces 1. Gram + 2. filamentous soil organism 3. used as antibiotic producers 4. 'myces': fungus-like 5. aerobic 6. colonies look like mold, chained, curls 7. uses fungi terminology but much smaller than fungi
Describe Micrococcus Common contaminant in lab 2. picked up from air (dust) & soil 3. Gram + 4. aerobic 5. does not ferment much 6. arrangment is normally tetrad (cluster of 4)
Describe Actinobacteria Streptomyces-like organisms
Created by: lophung
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