Crystal violet stained cocci. Tetrads, and diplococcal and staphylococcal arrangements are present. (approx. 1000 X). Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld.
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A fruticose (leaflike) lichen. Taken from the Wistreich Collection, appearing exclusively on MicrobeWorld.
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Accompanying the previous NYT article 'Tracing Oil Reserves to their Tiny Origins" is this graphic which depicts the oil formation process.
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I comment a bit, as an educator, about the loss of Carl Woese. Not only the importance of his discoveries, but how he went about his work, remains of great value.
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Cartoon of a couple of bacteria having marital problems. Via Wikipedia Commons. Illustration by Gaspirtz.
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Conidia of Exophiala jeanselmei. Sporulation is from 'shoulder' or distal end of a hyphal cell, or from the tip of a conidiophore. LCB stain.
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Magnification 65,000X.
Smallpox is a serious, highly contagious, and sometimes fatal infectious viral disease. There is no specific treatment for smallpox disease, and the only prevention is a smallpox vaccination. Read More 
The bacterium, Enterococcus faecalis, which lives in the human gut, is just one type of microbe that will be studied as part of NIH's Human Microbiome Project.
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Blastomyces dermatitidis in pus from a dressing. Two characteristic budding cells are present. Note broad base building
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Acid fast colony (triple stain) in blood culture of a patient with untreated pulminary tuberculosis
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Actin (purple), microtubules (yellow), and nuclei (green) are labeled in these cells by immunofluorescence. This image won first place in the Nikon 2003 Small World photo competition.
Torsten Wittmann, Scripps Research Institute Read More 
The appearance of an algal bloom in Griffith Park, Los Angeles. From the Wistreich Collection
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