"LW Scientific"
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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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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 Bursaria truncatella Culture
Very large ciliate. Feeds on colpidium. Hay medium.
Characterized by cilia; nearly all possess two types of nuclei.
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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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Spirostomum
A very large Protozoa that graphically demonstrates the basic animal cell.
Live Cultures are supplied with media in 16 x 125 mm tubes, 2 oz. jars, or 8 oz. jars. Fast delivery is available directly from our laboratory. Please specify a delivery date.
Each culture shipment is prepared in our laboratories and includes the "Working with Protozoans" manual which contains detailed instructions for subculturing and use.
Canadian Customers:
CFIA and PHAC regulations require customers to submit a completed inspection checklist and signed statement of facilities compliance before receiving certain cultures. A customer service representative will contact you if documentation is required.
Our cultures undergo strict biochemical screening and are unconditionally guaranteed for species and purity. Each culture is labeled with scientific name, media on which it was cultivated and optimum growth temperature. Although our cultures are considered non-pathogenic, standard bacteriological laboratory procedures should be used at all times. Cultures are available either live for immediate use or freeze-dried for convenient storage until needed. (Please note: We are not responsible for any infection resulting from the use of our cultures.)
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Ward's® Live Mealworm Larvae, Pupae and Beetles (Tenebrio)
Teach your students about the complete metamorphosis of an insect with these mealworms.
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Ward's® Live Enterobacter aerogenes Culture
This organism is commonly recovered from soil and water. As normal intestinal flora, it can also usually be found in sewage.
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Ward's® Live Bullfrog Tadpoles (Rana catesbeiana)
Bullfrog tadpoles are great for demonstrating metamorphosis in the classroom.
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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 JM101 (Host) Culture
E. coli with JM101 can be transformed with pUC8 plasmid to become resistant to Ampicillin and to metabolize lactose
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Bacillus thuringiensis israelensis
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.

