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Cyanobacterial mat on the shores of Lake Fryxell in the McMurdo Dry Valley region of Antarctica

The cyanobacterial mat is on the shores of Lake Fryxell in Taylor Valley- the McMurdo Dry Valley region of Antarctica. These organisms actively grow only a few weeks a year during December and January. Photo taken by Scott Craig and contributed by Dr. Laurie Connell. Read More

Human Immunodeficiency Virus 3D

Illustration First Place Winner NSF International Science & Engineering Visualization Challenge

At first glance, it could pass for a piece of crochet, a fluffy gray and orange ball. But its real-world counterpart is far more destructive: It claims an estimated 2 million lives a year and has w... Read More

Aspergillus fumigatus

Aspergillus fumigatus. Typical dichotomous branching of hyphae in pulmonary lesion of a horse. PAS stain Read More

Plasmodium vivax

Plasmodium vivax young trophozoite with Schuffner's stippling Read More

Conidiophores of Exophiala jeanselmei

Conidiophores of Exophiala jeanselmei, LCB stain Read More

Egg of Hymenolepis diminuta

Eggs of Hymenolepis diminuta. These eggs are round or slightly oval, size 70 - 85 µm X 60 - 80 µm, with a striated outer membrane and a thin inner membrane. The space between the membranes is smooth or faintly granular. The oncosphere has six hooks. There are no polar filaments extending into... Read More

Gram-negative rods and coccobacilli

Gram-negative rods and coccobacilli. (Proteus vulgaris) (approx X1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Salmonella typhimurium invading cultured human cells.

Color-enhanced scanning electron micrograph showing Salmonella typhimurium (red) invading cultured human cells.

Salmonella is actually a group of bacteria that can cause diarrheal illness in humans. They are microscopic living creatures that pass from the feces of people or animals to other p... Read More

Simple safranin stain of B. subtilis

Simple safranin stain of B. subtilis and central location of unstained spores. (Approx. original X 1000). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Proteus vulgaris

Circular, smooth, entire, opaque colonies of Proteus vulgaris on a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

The Tree of Life: Microbiology Artwork

Microbiology artwork from artologica. Read More

Sucker-Like Structures on the Pathogenic Amoeba Naegleria fowleri

Scanning electron microscopy photograph of a human isolate of Naegleria fowleri amoeba grown in axenic culture displaying sucker-like structures, called amoebastome, used for a novel form of phagocytosis. There appears to be an inverse correlation between the mean number of suckers per amoeba an... Read More

Saving the World with Microbes - A Summer Happy Hour Series at ASM HQ - July 19, 2012

Did you know that your body is home to 10 times more microbes than human cells? Join us at ASM Headquarters on Thursday, July 19, 2012, from 6-8 PM to learn about the human microbiome and its fascinating practical applications. Come mingle with like-minded enthusiasts and curious citizens ove... Read More

Conidial head of Aspergillus restrictus

Conidial head of Aspergillus restrictus, sterigma on vesicle bear spores Read More

Bacillus subtilis colonies

Irregular, umbonate, opaque Bacillus subtilis colonies on the surface of a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

b324-1 clostridium ramosum, peptostreptococcus spp, peptococcus spp and bacteroides fragilis

b324-1 clostridium ramosum, peptostreptococcus spp, peptococcus spp and bacteroides fragilis Read More

Staphylococcus aureus bacteria

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

Petri dish art

This tropical scene, reminiscent of a postcard from Key West, is actually a petri dish containing an artistic arrangement of genetically engineered bacteria. The image showcases eight of the fluorescent proteins created in the laboratory of Roger Y. Tsien, a cell biologist at the University of C... Read More

Trichophyton violaceum

Magnified 475X, this photomicrograph depicts some of the structural morphology of numerous Trichophyton violaceum fungal organisms. This dermatophyte had been grown in a medium of Sabouraud dextrose agar, and of note are the organism’s mycelia, or branching hyphae, i.e., the vegetative portion o... Read More

Escherichia coli and Salmonella paratyphi Flower on 2 EMB plates

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
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