A pink-pigmented strain of Pseudomonas aeruginosa is shown in the picture. This was photographed in University of Colorado Hospital's clinical lab by the microbiology department. The organism is shown on Mueller-Hinton agar for Kirby-Bauer sensitivity testing.
The pigment pyorubin is responsi... Read More
Slime production by Staphylococcus epidermidis on Congo Red agar; demonstrated by black colored colonies. Slime production is one of the most important virulence factors produced by Coagulase negative Staphylococci.
The colonies of slime non-producing strains remain pink to red.
Pseudomonas aeruginosa isolated from sputum into department of Microbiology - Riuniti Hospital Reggio Calabria .
This strain of Pseudomonas secretes brown/black extracellular pigment: pyomelanin.
Photo from D'Aleo Francesco archive. Read More
THIS IS VIBRIO CHOLERAE O1 OGAWA ISOLATED FROM HUMAN STOOL SWAB PLATED ON BILE SALT AGAR Read More
Presence of Gram-positive, partially acid-fast rods, which have grown in branching chains resembling fungal hyphae. (Gram stain; original magnification, ×100). Image courtesy MicrobeWorld user Kyriakos Zaragkoulias, Specialty Registrar (StR) in Medical Microbiology at General Hospital of Thessal... Read More
Alternaria and other demaziacee normally not change the DTM agar plates colour. This Alternaria isolated into Mycology Laboratory in Policlinic "G. Martino" - University of Messina, change the color on DTM agar. Read More