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Getting Started with MicrobeWorld

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Hand print

Hand print on a large TSA plate from my 8 1/2 year old son after playing outside. Read More

10 fun facts about antibiotics

This poster has ten (10) mildly interesting facts about antibiotics, just in case you needed a poster or handout for Antibiotic Awareness Week (Nov 18-24, 2013). You can download PDF at "source" URL, above. Please feel free to share this graphic with your students, classmates, colleagues, frien... Read More

Neurons

Neurons and biological shapes is a common theme in the works of the artist Maria Penil. Here she painted with yellow Nesterenkonia, orange Deinococcus and Sphingomonas isolated for their attractive colors as contaminants in the Berkmen lab. After growing the plates for 2 days at 30C, the artist ... Read More

Unknown from Handprint #3

Unknown organism seen on a TSA plate used to do a handprint. Organism was seen on the outside of the imprint so not sure if it came from the hand or was contaminant. Colony was circular, tan/white, rhizoid growth in the center with a smooth margin and mucoid throughout. Read More

Unknown from Handprint #2

Closeup of organism seen on handprint, presumably Bacillus sp. Organism grew out from the center with rhizoid growth, lobate edges, tan coloration, glossy throughout the colony, Read More

E.coli on MacConkey Agar (Mac)

Streak plate isolation of E. coli on MacConkey Agar grown for 24 hrs at 37 degrees. E. coli demonstrates strong lactose fermentation indicated by the bright pink halo, bile precipitant around the colonies, and pink colony growth. Read More

NYC Biome MAP

Microorganisms reside everywhere, yet they are too small to be seen with the human eye. New York City (NYC) is a melting pot of cultures - both human and microbial - and every citizen has a personalized microbiome. Collectively, we shape NYC’s microbiome by our lifestyle choices, and this unseen... Read More

E. coli gram stain

Gram stain of E. coli showing characteristic G- rods. Read More

Harvest Season

Saccharomyces cerevisiae is a species of yeast. It is the active agent responsible for our most basic foods - bread, wine, and beer since ancient civilizations. It has been long since humans have tried to understand how to make them more productive. However, it was not until the Genomic Era that... Read More

Cell to Cell

Bacteria were 'painted' on agar and sealed in epoxy. Work by Maria Penil in the Berkmen lab Read More

SIM Media

Sulfur-indole-motility test (SIM media) results for:
(A) Escherichia coli: Motile***, hydrogen sulfide (-), indole (+)*
(B) Staphylococcus aureus: Non-motile, hydrogen sulfide (-), indole (-)
(C) Salmonella arizonae: Motile, hydrogen sulfide (+)**, indole (-)
(D) Enterobacter aerogenes: Mot... Read More

Endospore Stain Bacillus cereus

B. cereus was grown on urea agar for 6 days at 37 degrees C to induce spore formation.
The endospore stain was done using malachite green as the primary stain and safranin as counter the stain. Malachite green was applied to the smear and set over a steaming water bath for 10 min (stain was no... Read More

Enterobacter aerogenes on MacConkey Agar (Mac)

Streak plate isolation of Enterobacter aerogenes grown on MacConkey agar for 24 hours at 37 degree's. Colonies grow pink due to fermentation of lactose. Read More

Mycobacterium smegmatis Acid Fast Stain

Acid Fast stain done on a mix of Staphylococcus aureus and Mycobacterium smegmatis. Carbol fuchsin was applied to the smear and set over a steaming water bath for 10 min to help penetrate the mycolic acid in the cell wall, then rinsed with acid alcohol which washes the carbol fuchsin out of al... Read More

Aspergillus clavatus

Picture carefully taken with my iphone under a dissecting microscope. Read More

Announcing ASM's Agar Art 2016 Winners

Thank you to everyone who created a log phase masterpiece, to our esteemed judges, and to everyone who voted for People's Choice on Facebook! We received 117 amazing entries from 26 countries and 17 U.S. states. Special congratulations to our winners! View this year’s winners... Read More

Rhizopus Stolonifer (Black bread mold) under magnification of 40X

black bread mold Read More

Slime mold Arcyria denudata

Arcyria called Cotton Candy Slime. A Myxomycetes 1 mm tall. Read More

Fungus on toilet seat

Culturing microbes on nutrient plate and testing for different kind of microbes on specific environment areas. This inoculated nutrient plate that was left for a period of 14 days showed the present of a few different kind of fungus species. It’s common to think that the human palm contains more... Read More

Serpentine cording in Mycobacterium tuberculosus

Pictured is a culture of Mycobacterium tuberculosis growing colonies in the distinctive "serpentine cord" form seen in many strains of M. tuberculosis. These cords are made up of chains of cells that make chains due to a cell wall factor of MTB.

The cell wall structure of Mycobacterium is a m... Read More
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