"bacteria"

Isolated from sewage, human intestines, and urinary tract infections. Spreading colonies are seen on agar growth medium. 

No Lancefield group shown, alpha hemolysis. Bile solubility test positive, optochin sensitive. Causes pneumonia. 

Ames test strain for detecting carcinogens. Causes infection in humans. 

Isolated from milk and cheese products. Can be used to ferment milk. 

Isolated from human nasopharynx, saliva, and sputum. Spontaneously agglutinates in saline.

Both of these strains of Serratia marcescens are colorless mutants when plated alone, but when grown together, they produce a red pigment.

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

Two strains of Escherichia coli (donor and host) with complementary sensitivities to Ampicillin and Streptomycin. Watch them trade traits via conjugation.

This organism is commonly isolated from soil or water, and produces a pink or rose colored pigment.

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.

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.

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.

This organism is a common inhabitant of intestinal flora, and can be a major cause of urinary tract infection.

isolated from human intestine. Lactose positive and sucrose positive after a few days’ growth. Causes a mild form of dysentery.

Used for culturing Dictyostelium discoideum (cellular slime mold). 

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.