Applied Filters
"Freeze-Dried Specimens"
Applied Filters
Applied Filters
Ward's® Live Pseudomonas fluorescens Culture
This organism is commonly found in soil and water, and is also associated with spoiled food. It produces a diffusible fluorescent pigment.
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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.
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Ward's® Live Serratia marcescens Cultures: Strain 933 and Strain WCF
Both of these strains of Serratia marcescens are colorless mutants when plated alone, but when grown together, they produce a red pigment.
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Ward's® Live Streptococcus pneumoniae Culture - PATHOGEN
No Lancefield group shown, alpha hemolysis. Bile solubility test positive, optochin sensitive. Causes pneumonia.
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Ward's® Live Halobacterium salinarium Culture
Red-pigmented halophile from evaporating salt ponds; requires 25% salt medium, lyses easily in plain water, releasing DNA.
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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 Rhizobium leguminosarum Culture
Nitrogen fixation, produces nodules on legume roots. Bacteroids from nodules can be X, Y, and club shapes.
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Streptococcus sanguinis
Normal flora of the mouth and throat. Lancefield group H, alpha hemolysis. Optochin resistant. May cause infections in humans. Nonmotile. Cocci; chains. Gram positive reaction. Aerobic. Incubation temperature 37°C. Blood agar growth medium. Note: Pathogen.
Packaged in a 16 x 125 mm tubes. Call our Customer Service for availability of demo plates and other special orders.
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Ward's® Live Streptomyces griseus Culture
Produces streptomycin. Branching mycelium and coenocytic hyphae.
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Ward's® Chromobacterium Violaceum
Found in fresh water. Chromogenesis; blue to purple pigments produced. Motile. Rods. Gram negative reaction. Aerobic. Incubation temperature 30°C. Blood agar growth medium. Note: Pathogen.
Packaged in a 16×125 mm tubes. Call our Customer Service for availability of demo plates and other special orders.
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Fischerella (Stigonema)
Freshwater. Filamentous. True branching, dimorphic structure. Basic culture solution.
Shipped in a form that provides the best quality specimen. Most are supplied in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars..
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Agrobacterium tumafaciens
A. tumefaciens is a pathogenic soil bacterium known to cause grown gall disease, in nut trees and the plants of some stone fruits.
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Ward's® Live Escherichia coli DH5 alpha (DH5α) Culture
This non-pathogenic strain of E. coli was initially created for cloning use.
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Ward's® Live Serratia liquefaciens Culture
Colorless, most widely dispersed of the Serratia species.
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Ward's® Live Sporosarcina ureae 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 Staphylococcus saprophyticus Culture
Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive).

