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.
Unknown Yeast or Bacteria seen on tip of finger print grown for 2 days at 37 degrees C then held at room temperature for 3 days. Organism was yellow, mucoid, raised rhizoid with large holes. Read More
ANN ARBOR, Mich. -- Like a collection of ragtag villagers fighting off an invading army, the mix of bacteria that live in our guts may band together to keep dangerous infections from taking hold, new research suggests. Read More
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
Young sibling polyps of staghorn coral (Acropora millepora) three days after settlement. In a National Science Foundation-supported study, researchers found that the ability to fluoresce may influence whether or not the coral settle on the reef of their origin or disperse, and go elsewhere.
M... Read More
Starch agar contains high molecular weight starch molecules (soluable starch). When Iodine is added it reacts with starch to produces a dark brown/purple color. A zone of clearing forms around organisms that produce the exoenzyme amylase after addition of iodine. This plate was incubated for ... Read More
Marine bioluminescent Photobacterium kishitanii
The genus Photobacterium was first coined by Martin Beijerinck, in 1889, and originally referred to all bacteria capable of light production. Species belonging to Photobacterium are gram negative, rod shaped, chemoorganotrophic, facultative aerob... Read More
As the old saying goes, can beat a pound of the Shigella bacteria, seen here penetrating the intestinal mucosa of some poor soul.
Killing approx. 1 million people annually - most of them children, Shigella is best prevented by two simple strategies: washing hands before handling food & thorou... Read More
The days when antibiotics worked reliably and scientists could assume they worked directly—like popping a balloon—are fading. As resistance mounts, understanding how antibiotics really work could be the key to sustaining their efficacy. Read More
While not original art, it’s still a fun piece. BBL’s CHROMagar Orientation agar is the canvas for this piece of agar art. Chromogens in the agar release a colored compound when hydrolyzed by specific enzymes allowing certain bacteria to appear different colors on it. The brown color is Proteus... Read More
Scientists are one step closer to understanding how a normally harmless fungus changes to become a deadly infectious agent. Read More
Infected guinea pig eye Shigella - Sereny test Read More
Phytoplankton may be microscopic, but that doesn’t mean we can’t see them. Just look up: These little critters are brightening up cloudy days around the world. Read More
Created by: Michelle Vu, Research Associate, BS Microbiology
Isolate: Chromobacterium violaceum, Staphylococcus aureus
Agar: Blood Agar
Incubation Conditions: 24 hours at 37C + 24 hours at Room Temperature
Pictured is Chromobacterium violaceum and Staphylococcus aureus shaped in a valentin... Read More
BLOOMINGTON, Ind. -- Health experts have warned for years that the overuse of antibiotics is creating "superbugs" able to resist drugs treating infection. Read More
Results of analysing air by Using Merck Millipore Mas 100 Eco Air Sampler. Here i used DRBC agar and i got some molds. It was 100 lt volume. there is no yeast but we can see clearly molds. Read More
Prions are fascinating, enigmatic, and might teach us not only about rare prion diseases like Creutzfeld-Jakob disease, mad cow disease, or scrapie, but also about other more common neurodgenerative diseases. Two studies published on July 2nd in PLOS Pathogens report progress with novel tools an... Read More