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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.
Applied Filters
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Ward's® Live Alcaligenes viscolactis Culture
The presence of A. viscolactis in milk is a common cause for sliminess or "ropiness".
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Ward's® Live Shigella flexneri Culture - PATHOGEN
From sewage and human intestine. Causes dysentery.
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Ward's® Live Corynebacterium xerosis Culture
All microbial cultures undergo an extensive quality control program prior to releasing for sale, so they are guaranteed for purity as well as for species.
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Ward's® Live Streptococcus mutans Culture
Found on dental plaque, implicated in cavities. No Lancefield group shown, gamma hemolysis.
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Ward's® Live Bacillus subtilis Culture
This organism is commonly isolated in soil and produces antibiotics such as bacitracin, subtilisin, and mycobacillin.
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Ward's® Kocuria rosea
This organism is commonly isolated from soil or water, and produces a pink or rose colored pigment.
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Ward's® Live Staphylococcus epidermidis Culture
This organism is normal flora of human skin.
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Ward's® Live Streptococcus salivarius Culture
Normal flora of the mouth and throat. Lancefield group K, gamma hemolysis.
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Ward's® Live Staphylococcus saprophyticus Culture
Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive).