This 2005 scanning electron micrograph (SEM) depicted numerous clumps of methicillin-resistant Staphylococcus aureus bacteria, commonly referred to by the acronym, MRSA; Magnified 2381x.
Recently recognized outbreaks, or clusters of MRSA in community settings have been associated with strains... Read More
I created these two plate cultures for a "most popular" photo scholarship contest on the web and amazingly I have received a nice popularity score thus far. The plates are of Eosin Methylene Blue Agar media with Escherichia coli as the stem and leaves and Salmonella paratyphi as the petels. If... Read More
erysipelothrix rhusiopathiae. gram stain of 36 hour thioglycolate broth culture (1000x) Read More
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
A toxin-producing cyanobacteria with natural chlorophyll fluorescence (red) and DNA stain (green).
Location: Orlando, FL, USA
Photographer: Barry Rosen, , U.S. Geological Survey Read More
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
Doctors in the 17th Century wore penguin-like masks stuffed with flowers and herbs to protect themselves from the Plague. Image from NIH. Read More
This diagrams, as a trophozoite, the various forms that the developing malarial parasite undergoes prior to its schizont stage.
As the parasite increases in size, the ring morphology of the early trophozoite disappears, and becomes what is referred to as a mature trophozoite, which undergoes ... Read More
At the Harvard Virology Program Retreat for 2011, the students ran a viral dessert contest. I posted some of the images at VirusTalk. Have a look at them – they are truly delicious. Read More
Streptomyces spp. on various cultivation media. Production of different pigments and formation of aerial mycelia. Colonies after approximately 15 days of cultivation in aerobic atmosphere, 28°C. Environmental isolates.
Streptomyces is the largest genus of Actinobacteria and the type genus of ... Read More
Loboa loboi in pus from human lesion. Chains of yeast cells are characteristic Read More
Klebsiella pneumoniae. Maneval's capsule stain. Note clear area (capsule) surrounding pink stained organisms (1200X) Read More
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
An isolated Klebsiella oxytoca on MacConkey Agar from a patient with diarrhea. Look at its mucous appearance a characteristic of most Klebsiella. Read More
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
This colorized scanning electron micrograph (SEM) depicted a flagellated Vibrio vulnificus bacterium; Mag. 26367x.
Vibrio vulnificus is a bacterium in the same family as those that cause cholera. It normally lives in warm seawater and is part of a group of vibrios that are called "halophilic"... Read More
In 2009 researchers from the UT Health Science Center San Antonio and other institutions crack the genetic code of Schistosoma mansoni, a flatworm that can live up to 10 years on average in humans. The parasite is endemic in many tropical areas of the world.
Nature (16-Jul-2009) Read More