Matière vivante, Bactéries

Normal flora of the mouth and throat. Lancefield group K, gamma hemolysis. 

Isolated from milk and udders of cows. Lancefield group B, beta hemolysis. Causes infection of the female genital tract, maternal septicemia, neonatal infections. Camp test positive; resistant to bacitracin.

Beta hemolysis on blood. Causes wound infections and septicemia. 

Isolated from milk products; used in the manufacture of yogurt, buttermilk, and cheese. 

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

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

This colonial cyanobacteria is structured as several cells bound together in a gelatinous "mucilaginous sheath".

Lancefield group C, beta hemolysis. Causes strangles in horses. May be pathogenic in humans. Camp test negative; resistant to bacitracin, does not ferment lactose. 

Lancefield group A, beta hemolysis. Sensitive to bacitracin. Causes strep throat, rheumatic fever, and scarlet fever.

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.

Anabaena is a genus of filamentous, un-branched Cyanobacteria consisting of bead-like cells and enlarged spores or heterocysts.

This organism is commonly isolated from human nasopharyngeal mucosa

Produces streptomycin. Branching mycelium and coenocytic hyphae. 

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 organism is commonly isolated in soil and produces antibiotics such as bacitracin, subtilisin, and mycobacillin.

This organism is normal flora of human skin.