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Ward's® Live Rhodospirillum rubrum Culture

Ward's® Live Rhodospirillum rubrum Culture

This species of Rhodospirillum is commonly isolated from stagnant water and mud. It is especially interesting because it produces a red pigment and is also capable of photosynthesis.

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Ward's® Live Escherichia coli Conjugation Strains

Ward's® Live Escherichia coli Conjugation Strains

Two strains of Escherichia coli (donor and host) with complementary sensitivities to Ampicillin and Streptomycin. Watch them trade traits via conjugation.

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Ward's® Kocuria rosea

Ward's® Kocuria rosea

This organism is commonly isolated from soil or water, and produces a pink or rose colored pigment.

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Ward's® Live Aquaspirillium serpens Culture

Ward's® Live Aquaspirillium serpens 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 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 Kocuria rhizophila (Micrococcus luteus) Culture

Ward's® Live Kocuria rhizophila (Micrococcus luteus) Culture

Kocuria rhizophila is also commonly known by the name Micrococcus luteus. This organism is commonly isolated from soil, and is frequently used to test antimicrobial efficacy in the food industry.

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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 culture

Ward's® Live Escherichia coli culture

This organism is a common inhabitant of intestinal flora, and can be a major cause of urinary tract infection.

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Ward's® Live Escherichia coli (non-muccoid) Culture

Ward's® Live Escherichia coli (non-muccoid) Culture

Used for culturing Dictyostelium discoideum (cellular slime mold). 

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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 Shigella sonnei Culture - PATHOGEN

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.

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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 Citrobacter freundii Culture

Ward's® Live Citrobacter freundii 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 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 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 Mycobacterium smegmatis culture

Ward's® Live Mycobacterium smegmatis culture

This organism is occasionally isolated from soil, but most frequently from smegma- a secretion from male and female genitalia.

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