Échantillons
Des spécimens sont disponibles pour une grande variété de procédures de test organiques et inorganiques. Les échantillons organiques peuvent être utilisés pour la dissection ou l’étude de spécimens entiers, vivants ou conservés, avec des exemples pratiques en biologie cellulaire ou dans l’analyse de la structure interne d’organes et de systèmes multicellulaires complexes. Les spécimens de roche permettent l’étude des textures, des tailles de grains et d’autres caractéristiques influencées par la pression, la température et d’autres forces naturelles, offrant un aperçu de l’histoire géologique de la Terre.
Ward's® Live Ramshorn Snail
Planorbids, mixed genera. Compare these attractive, spiral-shelled, herbivorous freshwater specimens with other snails. They will eat aquarium plants
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Ward's® Live Mystery Snails (Pomacea bridgesi)
These organisms help keep your freshwater aquarium clean by eating algae and detritus; they won’t eat any plants included in the aquarium.
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Didinium
Predatory. Feeds on Paramecium caudatum. Hay medium.
Characterized by cilia; nearly all possess two types of nuclei.
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Ward's® Live Coliphage Suspensions
A collection of some of the more popular forms of coliphage. The successful culture of coliphage requires growing in the appropriate host bacterium (available separately)
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Ward's® Live E. coli cultures for Coliphage Use
A collection of some of the strains of Escherichia coli needed to grow various coliphages (available separately).
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Ward's® Live Bullfrogs (Rana catesbeiana)
This large predatory frog will eat any other organism smaller than itself, including smaller bullfrogs; keep similar-sized frogs together to avoid cannibalism.
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Ward's® Live Terrestrial Isopods (Pill Bugs and Sow Bugs)
Often mistaken for beetles, these wingless crustaceans live their whole lives on land, feeding on decaying organic matter.
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Chilomonas
Two flagella; no chloroplasts. Food organism. Hay medium.
Characterized by flagella; lacks plastids.
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Drosophila Sets, Live Fruit Flies
Drosophila melanogaster, the common fruit fly, is widely used in genetic studies. They express a number of mutations such as eye, wing, and body mutations. Students can study sex-linked, recessive, and dominant mutations. Drosophila also makes an excellent live food for mantises, small reptiles, and amphibians. Drosophila demonstrates complete metamorphosis with egg, larva, pupa, and adult stages in its life cycle.
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Euplotes
The body of this ciliate is transparent, making the large cilia clearly visible.
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 Green Hydra (Chlorohydra viridissima)
Hydra are tiny animals closely related to jellyfish. They can be carnivorous as well as photosyntheic due to their symbiotic relationship with green algae Zoochlorellae.
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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 Vibrio fischeri Culture
Found in seawater and marine animals. Young cultures luminescent.
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Ward's® Live Green Tree Frog (Hyla sp.)
These fascinating frogs are uniquely adapted for climbing, with prominent adhesive pads on the ends of their digits.
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Ward's® Live Brown Hydra (Hydra littoralis)
Hydra are tiny animals closely related to jellyfish. They are a carnivorous species that can be found in healthy freshwater rivers and streams where they attach themselves to plants and rocks.
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Ward's® Live Actinosphaerium Sp. Culture
With stiff 'arms' radiating in all directions, these microscopic organisms look like sea urchins

