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Micrococcus lutea

Gram-stain of Micrococcus lutea. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. 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

Salmonella typhi.

Flagella stain of Salmonella typhi. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Lyngbya Gathering

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

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

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

The appearance of circular, entire, opaque colonies on the surface of a nutrient agar plate

The appearance of circular, entire, opaque colonies on the surface of a nutrient agar plate. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

The life cycle of the malaria parasite (animation)

View an interactive animation of the life cycle of the malaria parasite, of the genus Plasmodium. The lifecycle of the malaria parasite is split between female mosquitoes and humans. In the mosquito gut, the parasites complete sexual reproduction and then multiply rapidly to produce many more p... 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

Acid-fast rods

Acid-fast rods. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Schistosoma mansoni parasite

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

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

Bacillus subtilis

Gram-stained preparation of Bacillus subtilis showing rods, and spores (empty areas). (approx. 1000 X). Taken from the Wistreich Collection. Read More

Escherichia coli on MacConkey Agar

Escherichia coli isolated from a patient with diarrhea on MacConkey Agar.
Its simply beautiful, one of the first isolations I made. 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

A close-up of the surface of a streak plate

A close-up of the surface of a streak plate using a mixed culture of Serratia marcescens and Micrococcus lutea as the inoculum. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld. Read More

Streptomyces spp.

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

Virus causes animal die-off along the coast of Peru

A dying pelican crawls away from the surf to die on the beach of Paita, Peru on May 2, 2012. According to Peruvian vice minister of Environment, Gabriel Quijandria, the cause of death of thousands of fish, sea birds and diverse animal wildlife that has been washing ashore in the northern coasts ... Read More

Mycoplasma - adhesion of symbiont infection structure to host

This scanning electron micrograph shows mycoplasma (colorized pink), a genus of bacteria that lack a cell wall. Without a cell wall they are unaffected by many common antibiotics, such as penicillin, or other beta-lactam antibiotics that work by targeting cell wall synthesis. These mycoplasma ar... Read More

Examining Virus Bacterium Associations




Virus-bacterium associations were examined in the natural environment of a termite's hindgut. Three general scenarios were seen. In the first (1) there was a one-to-one association: one type of virus matched one type of bacterium host. In the second (2) the host bacterium was associated wi... Read More

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