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Bacteria - Living Material
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.
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Ward's® Live Streptomyces griseus Culture
Produces streptomycin. Branching mycelium and coenocytic hyphae.
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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 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 Rhizobium leguminosarum Culture
Nitrogen fixation, produces nodules on legume roots. Bacteroids from nodules can be X, Y, and club shapes.
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Ward's® Live Cylindrospermum Culture
This filamentous cyanobacteria is comprised of heterocysts and akinetes that are terminally located on the filament.
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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 Salmonella enteritidis Culture - PATHOGEN
Frequent human isolate. Causes gastroenteritis.
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Ward's® Live Mycobacterium phlei Culture - PATHOGEN
This pathogenic organism is sometimes isolated from hay and grass.
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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.