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Mycoplasma fermentans. Photomicrograph, stained. Note colonial morphology after 14 days growth on agar (400x)

Mycoplasma fermentans. Photomicrograph, stained. Note colonial morphology after 14 days growth on agar (400x) 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

clostridium perfringens lecithinase activity 6x

clostridium perfringens lecithinase activity 6x Read More

How Escherichia coli Move

Escherichia coli use long, whip-like structures called flagella to propel themselves. Motors in the cell's wall spin the flagella into bundles that rotate counter-clockwise, creating a twist that causes the bacterium to rotate clockwise, or towards the right when viewed from above.

Insight in... Read More

Histoplasma duboisii

Histoplasma duboisii. The single nucleus, characteristic of Histoplasma duboisii (and of Histoplasma capsulatum) can be seen in many of the fungal cells. Note large cell size 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

Good for you but don't do it in public!

When I worked at a vet hospital people asked me all the time whether dog's mouths were cleaner than humans. I always told them it was an old wive's tale & wondered about their personal hygiene. Turns out I was wrong! Read More

clostridium sporogenes - sporoangia and sports, crystal violet (1000x)

clostridium sporogenes - sporoangia and sports, crystal violet (1000x) Read More

Clostridium perfringens

Clostridium perfringens. India ink preparation showing capsules Read More

Cryptococcus neoformans

Cryptococcus neoformans in brain, H & E stain Read More

Fusobacterium russii

This is a photomicrograph of Fusobacterium russii cultured in a thioglycollate medium for 48 hours.

Like the genus Bacteroides, Fusobacterium are anaerobic, gram-negative bacteria that are normal inhabitors of the intestine. Fusobacterium spp. are associated with pleuropulmonary and oral infe... Read More

Normal guinea pig eye

Normal guinea pig eye (see http://www.microbeworld.org/index.php?option=com_jlibrary&view=article&id=2524 for other, infected eye via Sereny test). Read More

Twitter tag cloud from #ASMGM

Science blogger Cesar Sanchez of the site Twisted Bacteria (twistedbacteria.blogspot.com) created the above word cloud that was generated from approximately 1200 tweets that appeared on Twitter during the American Societ... Read More

Bright red-orange photoluminescence observed from porous silicon nanoparticles with human HeLa cells

Bright red-orange photoluminescence observed from porous silicon nanoparticles with human HeLa cells, magnified 1000 times and viewed in the reflection from a silicon wafer. Prepared from high-purity silicon wafers, these nanoparticles provide a nontoxic and biodegradable alternative to conventi... Read More

Trichinella spiralis Scanning EMs and hundreds more

As referenced in the most recent episode of This Week in Parasitism, Dickson Despommier, Mailman School of Public Health, Columbia University, and Yuzo Takahashi, Department of Parasitology, Gifu University School of Medicine, have posted hundreds of scanning electron microgra... 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

Aspergillus fumigatus

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

FUNGI ON PETRIDISH

This is a from fungal isolation from soil in PES college , india. Read More

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