1
Compare aerobic vs anaerobic growth on nutrient agar
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2
Compare aerobic vs candle jar growth on nutrient agar.
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3
Compare candle jar vs anaerobic jar growth on nutrient agar.
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4
Compare growth on nutrient agar anaerobically, vs subsequent aerobic incubation.
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5
Which tube has an obligate aerobe? An obligate anaerobe?
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6
What physiological type? obligate aerobe, facultative anaerobe, or obligate anaerobe?
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7
Compare growth on nutrient rich GYE aerobically vs anaerobically.
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8
Compare growth in air or anaerobically.
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9
Compare growth aerobically vs anaerobically.
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10
Compare aerobic vs anaerobic growth.
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11
Acinetobacter Gram stain
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12
Clostridium sp Gram stain
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13
Enterococcus sp. from colony on plate
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14
Viewed from the bottom, dark red colony indicates lactose fermentation.
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15
E. coli appearance, bottom view. Halo of bile salts preciptate around colony.
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16
No dark centers for colonies, which indicates it cannot ferment lactose.
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17
No growth from Enterococcus. Gram + bacteria inhibited by crystal violet in MacConkey's agar.
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18
MacConkey's agar. Clear colonies indicate no fermentation of lactose.
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19
MacConkey's agar, view from bottom of plate. Dark red colony indicates lactose fermentation, typical of coliform bacteria.
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20
Coliform bacteria (dark red center) on MacConkey's agar, bottom view.
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21
E. coli on MacConkey's agar
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22
MacConkey's agar, with five colonies typical of Escherichia coli.
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23
Enterococcus growing on azide agar (left), but not on EMB agar (right)
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24
Gram negative bacterium, growing on EMB agar (right), but not on azide agar (left)
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