"Gram Negative"

Isolated from human intestine, this organism is known for its distinctive putrefactive odor.

Isolated from human nasopharynx. Presumably not related to N. sicca; some relation to N. gonorrhoeae. Often agglutinates in saline. 

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.

Ward's® Live Escherichia coli, Lactose Negative Culture

Nitrogen fixation, produces nodules on legume roots. Bacteroids from nodules can be X, Y, and club shapes.

Colorless, most widely dispersed of the Serratia species. 

Found in seawater and marine animals. Young cultures luminescent.

From soil and water rich in minerals. Organism of putrefaction.

From sewage and human intestine. Causes dysentery. 

Frequent human isolate. Causes gastroenteritis.

Noted for capsular swelling. Causes pneumonia and urinary tract infections.

E. coli with JM101 can be transformed with pUC8 plasmid to become resistant to Ampicillin and to metabolize lactose

Red-pigmented halophile from evaporating salt ponds; requires 25% salt medium, lyses easily in plain water, releasing DNA.

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

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

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