bmorphology - characteristic of a genus. 1. Cocci (us) a....

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BACTERIOLOGY 1. BACTERIAL MORPHOLOGY A. Study of structure, appearance. B. Colony morphology - growth characteristics C. Microscopic morphology - cell characteristics 2. COLONY MORPHOLOGY A. Colony 1. Clump of organisms growing on the surface of solid medium. 2. Descendants of a single cell 3. Vary in appearance - characteristic of a genus B. Characteristics observed : 1. Shape, size 2. Margin 3. Elevation 4. Surface texture 5. Light transmitting property (color) 6. Consistency 3. MICROSCOPIC MORPHOLOGY A. Size B. Shape C. Arrangement D. Cell Structure 1. Basic cell structure 2. Special cell structures
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4. SIZE A. Measured in micrometers ( μ m) 1000 μ m = 1mm B. Ave. Range : D = 0.1 μ m to 2 μ m L = 0.1 μ m to 8 μ m 4. CELL SHAPE, ARRANGEMENT A. Three groups according to shape. In addition, variation of arrangement is
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Unformatted text preview: characteristic of a genus. 1. Cocci (us) a. Spherical, oval, egg shaped, bean shaped b. Size and shape varies. c. Singles, pairs, irregular clusters, tetrads, cubical packets of 8. 2. Bacilli (us) a. Elongated, cylindrical, rod-like b. Vary in diameter, length, shape of ends, arrangement. c. Singles, pairs, chains, parallel packets. 3. Spirals a. Curved rods b. Vary in diameter, length, number of curves, tightness of curves, flexibility. c. Three groups of spirals: 1. Vibrios - single curve, comma shaped 2. Spirillum - rigid , two or more curves, cork screw shape 3. Spirochetes - flexible , two or more curves, wavy - move by flexing bodies....
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bmorphology - characteristic of a genus. 1. Cocci (us) a....

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