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Unknown organism, presumable yeast, seen on Bile Esculin Agar (BEA) after several months at refrigerated temperatures. Organism was mucoid.circular, and a light brown in color. The brown coloration around the colony indicates the organism can to convert the esculin into 6,7-dihydroxy-couarin producing the black pigment in the agar.

Unknown organism, presumable yeast, seen on Bile Esculin Agar (BEA) after several months at refrigerated temperatures. Organism was mucoid.circular, and a light brown in color. The brown coloration around the colony indicates the organism can to convert the esculin into 6,7-dihydroxy-couarin producing the black pigment in the agar.

Human Microbiome infograph - Microbes can be good! So many are essential for our body to function properly and in order to have good health. We would not exist without them.

Human Microbiome infograph - Microbes can be good! So many are essential for our body to function properly and in order to have good health. We would not exist without them.

Violet stained gram-positive cocci and pink stained gram-negative rod-shaped bacteria

Violet stained gram-positive cocci and pink stained gram-negative rod-shaped bacteria

Final lab, ex.6. Phenylalanine deamination.  Some Gram-negative bacteria can oxidatively deaminate the amino acid phenylalanine to produce phenylpruvic acid and ammonia.  The reaction is catalyzed by the enzyme phenylalanine deamninase.  This enzyme can be detected by adding ferric chloride which forms a green complex.
Reagent: Ferric chloride.

Final lab, ex.6. Phenylalanine deamination. Some Gram-negative bacteria can oxidatively deaminate the amino acid phenylalanine to produce phenylpruvic acid and ammonia. The reaction is catalyzed by the enzyme phenylalanine deamninase. This enzyme can be detected by adding ferric chloride which forms a green complex. Reagent: Ferric chloride.

Mitosis and Meiosis MCAT Cheat Sheet Study Guide - learn what happens in each step: Prophase, Metaphase, Anaphase, Telophase and how they all tie together

Mitosis and Meiosis MCAT Cheat Sheet Study Guide - learn what happens in each step: Prophase, Metaphase, Anaphase, Telophase and how they all tie together

Staphylococcus aureus fermentation of mannitol salt agar

Staphylococcus aureus fermentation of mannitol salt agar

Placa mutantes Streptomyces coelicolor - _placa-mutantes-S.-coelicol.jpg

Placa mutantes Streptomyces coelicolor - _placa-mutantes-S.-coelicol.jpg

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