Matière vivante, Bactéries
Live specimens are used for a wide variety of studies including studying the physiological effects of drugs on a specimen’s heartbeat and temperature on metabolism, the locomotion of microscopic organisms, and studying plant respiration, photosynthesis, plosmolysis, and more. Algal cultures form colonies of cells that are extremely easy to visualize for better understanding of cell walls and plastids, and many live specimens reproduce rapidly for quick turnover between successive tests.
Ward's® Live Clostridium rubrum Culture
Isolated from soil. Forms red pigment (best on high carbohydrate medium) and has oval eccentric spores.
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Ward's® Live E. coli cultures for Coliphage Use
A collection of some of the strains of Escherichia coli needed to grow various coliphages (available separately).
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Ward's® Live Escherichia coli (non-muccoid) Culture
Used for culturing Dictyostelium discoideum (cellular slime mold).
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Ward's® Live Escherichia coli, Lactose Negative Culture
Ward's® Live Escherichia coli, Lactose Negative Culture
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Ward's® Live GFP producing E. coli Culture
Eschericia coli culture that produces GFP, visible in the presence of UV light.
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Ward's® Live Pseudomonas putida Culture
From soil and water rich in minerals. Organism of putrefaction.
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Ward's® Live Serratia liquefaciens Culture
Colorless, most widely dispersed of the Serratia species.
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Brevibacillus brevis
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 Citrobacter koseri 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 Clostridium beijerinckii 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 Corynebacterium pseudodiphtheriticum Culture
This organism is commonly isolated from human nasopharyngeal mucosa
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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 Lactobacillus casei Culture
Isolated from milk and cheese products. Can be used to ferment milk.
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Ward's® Live Lactobacillus delbrueckii ss. bulgaricus Culture
Isolated from milk products; used in the manufacture of yogurt, buttermilk, and cheese.
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Ward's® Moraxella catarrhalis
Normal flora of respiratory tract. Beta-lactamase positive. Also known by the name Branhamella catarrhalis
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Ward's® Live Neisseria flava Culture
Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline.