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 Volvox aureus Culture
Volvox aureus is a species of colonial green algae that forms spherical colonies of cells.
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Ward's® Tribonema
Freshwater; unbranched filaments with cylindrical- to slightly barrel-shaped cells; shows the characteristic H-pieces upon fragmentation of the filament.
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 Algae & Cyanobacteria" 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.
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Zygnema
Freshwater. Filamentous; two stellate chloroplasts per cell. Basic culture solution.
Characterized by green plastids and cell walls composed of cellulose.
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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 Alcaligenes faecalis Culture
A Common Intestinal Flora Isolate, Demonstrates Alpha Hemolysis on Blood Agar Growth Medium
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Ward's® Penicillium chrysogenum
Deuteromycete. Produces penicillin. Incubation temperature 25°C. Malt extract agar growth medium.
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Saccharomyces cerevisiae var. ellipsoides
Ascomycete. Wine yeast: Used in fermentation activities. Incubation temperature 30°C. Sabouraud dextrose agar growth medium.
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Dictyostelium discoideum, Tube Culture
Cellular slime mold. Demonstrates amoeboid state, pseudoplasmodial state, and fruiting body, or sorocarp.
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Live Sordaria fimicola Cultures
Use Sordaria fimicola to allow students to visualize the results of crossing over during cell division.
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Ward's® Live Terrestrial Hermit Crab (Cenobita sp.)
The nocturnal hermit crab uses “borrowed” shells to protect its relatively soft body, changing shells as it grows larger.
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Ward's® Live Amphipods
Mixed genera. Also known as scuds, amphipods are freshwater crustaceans.
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Synedra
Freshwater, Unicellular; pennate, with bilateral symmetry. Diatom or basic medium.
Characterized by shells (tests) made of silica, in two parts.
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Synura
Freshwater; elongated, biflagellate cells that form globular colonies; gelatinous sheath absent.
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 Algae & Cyanobacteria" 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.
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Ward's® Live Amphidinium Culture
Marine; Small Motile Cells with the Transverse Furrow Located Near the Apex.
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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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Ward's® Live Arcella Culture
Usually found in freshwater and mosses, this organism has a hard umbrella shaped shell or "test", out of which finger-like pseudopodia project.