Live Specimens
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® Peridinium
Freshwater. Unicellular. Soil-water medium. Characterized by two flagella (one inside a groove at right angles to the other); most also have tests made of cellulose and are encrusted with silica.
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Cladophora
Marine. Filamentous; freely branched. Erdschreiber’s medium.
Characterized by green plastids and cell walls composed of cellulose.
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Ward's® Live Bacillus subtilis Culture
This organism is commonly isolated in soil and produces antibiotics such as bacitracin, subtilisin, and mycobacillin.
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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 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 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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Ward's® Live Serratia marcescens D1 Culture
This organism is commonly isolated from soil, and depending upon the temperature of its environment, can produce a distinctive red pigment.
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Ward's® Live Staphylococcus epidermidis Culture
This organism is normal flora of human skin.
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Aspergillus niger
Deuteromycete. “Black mold”. Produces citric acid. Common airborne contaminant. Causes aspergillosis. Incubation temperature 25°C. Sabouraud dextrose agar growth medium.
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Penicillium notatum
Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.
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Rhizopus stolonifer (nigricans) (+)
Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (-) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.
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Rhizopus stolonifer (nigricans) (-)
Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (+) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.
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Ward's® Live Bacillus cereus Culture
This organism is often times isolated from food; in large amounts it can cause food poisoning
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Ward's® Live Bacillus megaterium Culture
This organism is a common environmental isolate, and can be found in soil as well as in industrial settings.
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Ward's® Merismopedia
Freshwater. Colonial. Sheet of many cells one cell thick. Soil-water medium.
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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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.




