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Unknown contaminant on BEA

Unknown contaminant (yeast?) on BEA agar after 1 month in the refrigerator. Looks like there was moisture on the plate as the colonies grew in a drip like pattern. Colonies were mucoid salmon red in color with yellow pin point circular growths growing in through out. The edges of the colonies... Read More

Happy New Year

Dear ASM,

It will be a great pleasure for me and my group if you can post on your Facebook page attached photos of Petri dishes.
A New Years way of examination of antimicrobial activity: Inflict on a Petri dish, a microorganism in the shape of a New Years tree, and then add some antibiotics... Read More

Embryonated egg of Ascaris lumbricoides.

Embryonated egg of Ascaris lumbricoides. (Larva is motile inside the shell when seen under microscope)
It is infective stage of Ascaris. On ingestion the cortication is dissolved by gastric acid and the larva inside the egg is released. Fertilized eggs freshly passed in stool are non infective.... Read More

Impulsive wave of ability

Pigmented Petri dish
free seeding
home laboratory
5 days Read More

Endophytic Fungi Spores

This endophytic fungi was isolated from Musa sp., the spore production was induced with moist chamber and was observed in a light microscope. Read More

Bonsai Fungi

This fungi was isolated from a Bonsai tree (Premna sp.) This isolation is part of a undergraduate research project (student: Christopher Sambolin), from the Interamerican University of Puerto Rico, San Germán Campus. Read More

Ghostly Germs and Phantasmal Prokaryotes

The spooky, crimson plate in the center was drawn using Staphylococcus aureus to write Happy Halloween and draw the ghost. The eyes and mouth of the ghost were drawn with Staphylococcus epidermidis. Since S. aureus ferments the sugar mannitol in the MSA plate, the red dissipated and a yellowis... Read More

Happy couple

Happy bacteria couple drawn on TSA plate using a MRSA culture.
This picture illustrates how happy bacteria can become when people don't take all the antibiotic treatment correctly. Antibiotic resistance is a big problem nowadays. Read More

SPLAAASH!!!

Muestra de monitoreo ambiental por exposición de agar para métodos estándar, al parecer una gota de agua cayó al centro de la colonia y SPLASH! Read More

Happy Microbial Valentines' Day!

In this post from my education/microbiology blog, I share some "luminous art" related to Valentines' Day. Read More

Shoe Swab

This was a swab taken form the bottom of a shoe incubated for 48 hrs at 37 degrees C then held at room temp for 48 hrs then held at refrigerated temp's. Colony was yellow with rhizoid raised growth with a mat appearance. Read More

Congo Red

The Congo red binding assay of small colony variats from Pseudomonas aeruginosa. Alín Tobares, PhD student. Dra. Andrea Smania´s lab at CIQUIBIC-UNC, Córdoba, Argentina. Read More

The super Bug from Moldova

It is very sad to watch how these small bodies are each year stronger and resistant to antibiotics. Read More

Green Fungal Contaminant on BEA

Colonies of a green fungal contaminant, presumable airborne, on BEA agar after 1 month in the refrigerator. Green spore formation can be seen throughout the circular colonies. Read More

A Happy #MicrobialHalloween to All!

In this post from my research and teaching blog, Microbes Rule, I show off some Hallowe'en inspired microbiological goodness! Enjoy! Read More

Colorful Handrail Swab

Swab taken of the wooden handrail outside the classroom. Incubated on TSA for 24 hrs, room temp for 48hrs the held at refrigerated temperatures. Color developed once the plate was held in the refrigerator and colonies continued to grow. Several yellow circular mucoid colonies as well as an oran... Read More

Carbon-Based (micro) Life

The bonded carbons are shown using E. coli, E. faecalis, and C. violaceum. Using BBL's CHROMagar, we were able to show the pi bonds in pink (E. coli) and blue (E. faecalis). Read More

Pseudomonas

Casein Plates contain the major milk protein found in milk. Pseudomonas aeruginosa grown on Casien agar for 72 hours at 37 degree's C to look for the presence of the exoenzyme proteases/caseases . Pseudomonas aeruginosa, casein hydrolysis, as noted by a zone of clearing around the organism, as... Read More

BEA Fungal Contaminant III

Close up of a white fungal contaminants seen on Bile Esculin agar (BEA) after several month at refrigerated temperature. The BEA agar did turn black indicating esculin hydrolysis. This colony mounded in a cone shape with rhizoid growth towards the top and mat lobate growth around the edges. Read More

Physarum

Physarum polycephalum, slime mold, grown in a large perti plate on moist paper towels using oatmeal as the food source. Culture was grown in the dark at room temperature. The paper towel was moistened every day with tap water. After 3 week’s the culture formed sporangia (fruiting bodies). Image ... Read More
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