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Bacteria, protozoa, and algae from a wild stream

This digitally-colorized scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular view... Read More

Coccidioides immitis

Coccidioides immitis. Hyphae, arthrosporte and young spherule in lung. PSA stain (400X) Read More

E.coli Grocery

There is a new set of photographs on the Small Things Considered blog that are quite interesting. All of them look as if they originate from the 1950's to 1960's decades. ... Read More

Borrelia vincenti strain N19

Electron micrograph of Borrelia vincenti strain N19 Read More

Mycobacterium smegmatis

Streak plate of Mycobacterium smegmatis grown on TSA for 96 hrs. 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

Physarum polycephalum

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). Im... Read More

Bacteriophage

These bacteria-infecting viruses, phages for short, are the most abundant life-form on the planet, their number far exceeding that of stars in the universe. Trillions inhabit each of us.

Photograph by Department of Microbiology, Biozentrum, University of Basel/Photo Researchers, Inc., All Ima... Read More

Bacterial Artistry - Serratia marcesens

Serratia marcesens is a Gram-negative, rod-shaped bacterium that is commonly found in soil, water, on plants and in animals and thrives in damp conditions. This organism is well known for its production of the blood red pigment, prodigiosin. Production of prodigiosin can be influenced by several... Read More

Caulobacter crescentus

The common waterborne bacterium Caulobacter crescentus reproduces asymmetrically. When a cell divides, one of its daughter cells is a free-swimming “swarmer,” powered by a hairlike flagellum. The other, “stalk” daughter cell is immobile, anchoring itself to a surface with one of nature’s stronge... Read More

Bacilli showing streptobacillus arrangement

Microscopic view of large numbers of bacilli showing streptobacillus arrangement. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Science Comedian Brian Malow at #AAAS

Brian Malow at the Social Media Soiree party during the American Association for the Advancement of Science meeting in Washington, D.C.

Malow was featured in one of the first MicrobeWorld Video episodes about 3 years ago.

Cut and paste this link - http://bit.ly/gTniHl - into your address b... Read More

Have a Happy Bioluminescent Fourth of July!

In this post from my Microbiology/Education blog, I wish everyone a lovely day of food, fellowship, and fireworks. My laboratory brings you our own "fireworks" through bioluminescence! Read More

Absidia corymbifera

Absidia corymbifera. Sporangia and sporangiophore in vitro. LCB stain Read More

Raw sewage filtered onto a nucleopore membrane

Raw sewage filtered onto a nucleopore membrane. Note the filamentous bacterium and various rod-shaped bacteria (2000X) Read More

Basidiobolus haposporus

Basidiobolus haposporus. Adhesive spores forcibly discharged and attached to cover of a petri dish. Lactophenol cotton blue stain Read More

Human African trypanosomiasis

A false-coloured scanning electron microscope image of an African trypanosome, the parasite which causes sleeping sickness. Read More

Dangerous enterohemorrhagic bacteria E. coli

Most Escherichia coli (E.coli) strains are harmless.But some, like enterohemorrhagic E. coli (EHEC), are a hazard to human health and life. Read More

Salmonella sp.

Salmonella sp. on XLT4 agar and Miller Mallinson Agar Read More

Mycobaterium tuberculosis

A colorized scanning electron micrograph of Mycobaterium tuberculosis, the bacteria that cause TB.

Tuberculosis (TB)
Tuberculosis, commonly known as TB, is a contagious and an often severe airborne disease caused by a bacterial infection. TB typically affects the lungs, but it also may aff... Read More

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