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Matière vivante, Bactéries
Les spécimens vivants sont utilisés dans une grande variété d’études, notamment pour observer les effets physiologiques des médicaments sur le rythme cardiaque d’un spécimen, l’effet de la température sur le métabolisme, la locomotion des micro-organismes, ainsi que pour étudier la respiration des plantes, la photosynthèse, la plasmolyse et plus encore. Les cultures d’algues forment des colonies cellulaires très faciles à visualiser, ce qui permet de mieux comprendre les parois cellulaires et les plastes. De nombreux spécimens vivants se reproduisent rapidement, ce qui facilite un enchaînement rapide des tests successifs.
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Ward's® Live Enterobacter aerogenes Culture
This organism is commonly recovered from soil and water. As normal intestinal flora, it can also usually be found in sewage.
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Ward's® Live Clostridium sporogenes Culture
This organism can be isolated from soil, wounds, and intestinal tracts of humans. It digests protein and is known for its strong, distinctive odor.
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Ward's® Live Bacillus megaterium Culture
This organism is a common environmental isolate, and can be found in soil as well as in industrial settings.
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Ward's® Live Staphylococcus aureus, Beta (β) hemolytic - PATHOGEN
Beta hemolysis on blood. Causes wound infections and septicemia.
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Ward's® Live Klebsiella pneumoniae Culture - PATHOGEN
Noted for capsular swelling. Causes pneumonia and urinary tract infections.
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Ward's® Live Proteus vulgaris Culture - PATHOGEN
Isolated from human urinary tract and wound infections, this organism is identifiable by its characteristic putrefactive odor.
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Ward's® Live Staphylococcus saprophyticus Culture
Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive).
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Ward's® Live Streptococcus agalactiae Culture - PATHOGEN
Isolated from milk and udders of cows. Lancefield group B, beta hemolysis. Causes infection of the female genital tract, maternal septicemia, neonatal infections. Camp test positive; resistant to bacitracin.
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Ward's® Live Bacillus cereus Culture
This organism is often times isolated from food; in large amounts it can cause food poisoning
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Ward's® Live Clostridium rubrum Culture
Isolated from soil. Forms red pigment (best on high carbohydrate medium) and has oval eccentric spores.