"Wardssci090026"

Students determine contamination levels of ground beef in different environments.

Found in seawater and marine animals. Young cultures luminescent.

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

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

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 commonly isolated from soil, and depending upon the temperature of its environment, can produce a distinctive red pigment.

This organism is normal flora of human skin.

Deuteromycete. “Black mold”. Produces citric acid. Common airborne contaminant. Causes aspergillosis. Incubation temperature 25°C. Sabouraud dextrose agar growth medium.

Penicillium notatum is a deuteromycete that produces penicillin. It is available in normal and high-yield strains.

Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (-) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.

Zygomycete. Common black bread mold. Lab contaminant. Mating strain, cross with Rhizopus stolonifer (nigricans) (+) to produce zygospores. Incubation temperature 25°C. Potato dextrose agar growth medium.

This organism is often times isolated from food; in large amounts it can cause food poisoning

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

Produces orange pigments. 

Ascomycete. Baker’s yeast. Reproduction by budding. Incubation temperature 30°C. YM agar growth medium.