"Ward's Phenomena"

Hemolysis, the rupture of red blood cells, is induced by certain species of streptococcal bacteria that produce extracellular hemolysin.  Observe this phenomenon with this set of 3 non-pathogenic species

Everything you need to safetly collect and culture bacteria and fungi from your environment

Students determine contamination levels of ground beef in different environments.

Includes Examples of the Three Basic Morphological Types

Oscillatoria is a genus of filamentous green algae that moves by sliding filaments back and forth against each other.

This filamentous cyanobacteria is comprised of heterocysts and akinetes that are terminally located on the filament.

This organism is a common environmental isolate, and can be found in soil as well as in industrial settings.

This organism is commonly found in soil and water, and is also associated with spoiled food. It produces a diffusible fluorescent pigment.

Colorless, most widely dispersed of the Serratia species. 

This spore-forming, thermophilic organism is commonly used for germicidal and sporicidal testing due to its ability to withstand higher-than-normal temperatures.