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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® Kocuria rosea
This organism is commonly isolated from soil or water, and produces a pink or rose colored pigment.
Développer 2 article
Ward's® Live Salmonella typhimurium, Ames Test Strain Culture - PATHOGEN
Ames test strain for detecting carcinogens. Causes infection in humans.
Développer 2 article
Ward's® Live Shigella sonnei Culture - PATHOGEN
isolated from human intestine. Lactose positive and sucrose positive after a few days’ growth. Causes a mild form of dysentery.
Développer 1 article
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.
Développer 2 article
Ward's® Live Staphylococcus aureus, Beta (β) hemolytic - PATHOGEN
Beta hemolysis on blood. Causes wound infections and septicemia.
Développer 2 article
Ward's® Live Klebsiella pneumoniae Culture - PATHOGEN
Noted for capsular swelling. Causes pneumonia and urinary tract infections.
Développer 2 article
Ward's® Live Proteus vulgaris Culture - PATHOGEN
Isolated from human urinary tract and wound infections, this organism is identifiable by its characteristic putrefactive odor.
Développer 2 article
Ward's® Live Staphylococcus saprophyticus Culture
Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive).
Développer 2 article
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.
Développer 1 article
Ward's® Live Geobacillus stearothermophilus Culture
This spore-forming, thermophilic organism is commonly used for germicidal and sporicidal testing due to its ability to withstand higher-than-normal temperatures.