"WardsSci000192"

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.

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. 

Colorless, most widely dispersed of the Serratia species. 

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

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

Ward's® Live Escherichia coli, Lactose Negative Culture

Found in seawater and marine animals. Young cultures luminescent.

Frequent human isolate. Causes gastroenteritis.

From sewage and human intestine. Causes dysentery. 

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

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

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

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

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

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