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"Freeze-Dried Specimens"

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Ward's® Live Pseudomonas fluorescens Culture

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

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

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

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

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

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

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

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

Ward's® Live Streptomyces griseus Culture

Produces streptomycin. Branching mycelium and coenocytic hyphae. 

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Ward's® Chromobacterium Violaceum

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)

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

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

Ward's® Live Serratia liquefaciens Culture

Colorless, most widely dispersed of the Serratia species. 

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Ward's® Live Sporosarcina ureae Culture

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

Ward's® Live Staphylococcus saprophyticus Culture

Grows on dead tissues. Novobiocin resistant (S. epidermidis and S. aureus novobiocin sensitive). 

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