"Avantor"
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.
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.
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.
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.
Aspergillus niger
Deuteromycete. “Black mold”. Produces citric acid. Common airborne contaminant. Causes aspergillosis. Incubation temperature 25°C. Sabouraud dextrose agar growth medium.
Penicillium notatum
Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.
Ward's® Live Brown Planaria (Dugesia dorotocephala)
This is the most widely studied Turbellarian, a free-living flatworm commonly used in science fair projects.
Ward's® Live Water Fleas (Daphnia magna)
Daphnia are a widely studied small crustacean used for a number of physiology studies including the effects of drugs on heartbeat and temperature on metabolism.
Ward's® Live Stentor coeruleus Culture
This organism is easily recognized by its trumpet-shape and blue coloration. It is quite large (approx. 2 mm) and is a good option for students that are just starting to look at the microscopic world.
Ward's® Live Vorticella Culture
This organism is easily recognized by its trumpet-shape, and can commonly be found in freshwater ponds and streams. It reproduces by budding.
Ward's® Live Freshwater Rotifer Culture
Study the Rotifera under your microscope to discover the variety of structures among them. Subculture them in Alfalfa or Hay medium to increase your supply. Species may vary based on availability.
Ward's® Live Spirogyra Culture
Spirogyra is a genus of filamentous green algae with chloroplasts arranged in a helical (spiral) pattern.
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.
Ward's® Live Bacillus cereus Culture
This organism is often times isolated from food; in large amounts it can cause food poisoning
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.

