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Starch Agar

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

Coiled filamentous cyanobacterium Anabaena sp.

Nikon Small World Honorable Mention 2008 photomicrography competition, Dr. Petr Znachor, Institute of Hydrobiology, Ceske Budejovice, Czech Republic

Coiled filamentous cyanobacterium Anabaena sp. (600x)
Technique: Nomarski Differential Interference Contrast Read More

Female blacklegged deer tick, Ixodes scapularis

With its abdomen engorged with a host blood meal, this image depicts a lateral, or side view of a female blacklegged, or deer tick, Ixodes scapularis.
The blacklegged or deer tick, Ixodes scapularis, transmits Lyme disease, a disease caused by a spiral shaped bacterial microbe, Borrelia burgdor... Read More

sputum achieving score of 0 because of abundant squamous cells and absence of neutrophils - a mixed culture occurred with colonies resembling pseudomas aeruginosa, escheria coli and klebsiella or enterobacter

sputum achieving score of 0 because of abundant squamous cells and absence of neutrophils - a mixed culture occurred with colonies resembling pseudomas aeruginosa, escheria coli and klebsiella or enterobacter Read More

Masterworks in Petri dishes

Einstein in E. coli, an apple tree grown from fungi and a fluorescent Mario are just some of the masterworks cast in agar jelly by creative microbiologists. Read More

Acholeplasma laidlawii

Acholeplasma laidlawii, light micrograph (approximately 400X) Unstained. Note colonial morphology and classical 'fried-egg' appearance after 4 days growth Read More

Immunoelectrophoresis

Immunoelectrophoresis. Wells 1 and 2 rabbit serum, Wells 3 rabbit gammaglobulin, trough 1 and 3 antirabbit serum, trough 2 anti-gamma-globulin Read More

Erysipelothrix rhusiopathiae

Erysipelothrix rhusiopathiae. Gram stain of 36 hour thioglycolate broth culture (1000X) Read More

Ice Nucleation Bacteria, Twitter, and Me!

In this post from my microbiology/education blog, I discuss a post on Boing Boing recently that used a video I had made of ice nucleation bacteria. Ice nucleation bacteria are very interesting of course, and I link to the Boing Boing post. In addition, I provide an additional video of students... Read More

Exophiala jeanselme

Exophiala jeanselmei. Some conidiophores are very short lateral pegs on hyphae. LCB stain Read More

World's Largest, Unique Virus Photographed for First Time

These images are amazing and beautiful.

From Wired - "A virus so large and strange that it’s redefined the very concept of a virus has been photographed for the first time. It’s even weirder than expected." Read More

Acinetobacter baumannii

This SEM depicts a couple of clusters of aerobic Gram-negative, non-motile Acinetobacter baumannii bacteria as seen under a magnification of 12,739x.

Members of the genus Acinetobacter are nonmotile rods, 1-1.5µm in diameter, and 1.5-2.5µm in length, becoming spherical in shape while in their... Read More

Staphylococcus aureus

Scanning electromicrograph of Staphylococcus aureus bacteria. Credit: National Institutes of Health/Department of Health and Human Services (NIAID). Read More

Escherichia coli on Endo Agar

E. coli on Endo Agar from my class of Water and Food Microbiology. Read More

Cryptococcus neoformans

Cryptococcus neoformans in sputum. India ink (400X) Read More

Pulmonary cryptococcus neoformans

Pulmonary coyptococcus neoformans in man, H & E stain Read More

Conidiophores in Neurospora crassa

This is an 3D image of conidiophores of the filamentous fungus Neurospora crassa. Conidiophores are hyphae which differentiate to produce asexual structures named spores or conidia. The image taken using a confocal microscope shows conidiophores stained with a fluorophore which stains components... Read More

Swine Flu Portraits from Mexico City

Freelance photographer Nicola “Okin” Frioli has taken a collection of photographs/portraits of people wearing surgical masks in Mexico City. It's an interesting art project that looks at the impact swine flu has on the city's residents. Read More

Microsporum canis macroconidium

Microsporum canis macroconidium. Unstained interference phase (1000X) Read More

You'll Want To Wash Your Hands Immediately After Reading This (Infographic)

Germaphobes, maybe you're on to something.

Sickness-causing bacteria and viruses can lurk on surfaces long after they're expelled in an infected person's sneeze or snot. Some can even stay on a surface for months, given the right conditions. While the ability of these microorganisms to actual... Read More

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