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Cyanobacteria images related to USGS microbiology research.

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Cyclotella with epifluorescence
Barry H. Rosen, USGS

Cyclotella with epifluorescence. Photo credit: Barry H. Rosen, USGS

Description: Cyclotella from Raccoon River, Iowa. Discoid chromatophores and the nucleus easily observed with normal illumination and when illuminated using epifluorescence.

	Brightly pigmented bacteria from Afican dust	Chlorella with light microscopy	Chlorella with red indicative of chlorophyll
	Chlorella with yellow indicative of lipids	Closterium	Cyclotella with light microscopy
	Cyclotella with epifluorescence	Giemsa-stained blood smear	Human liver tissue
	Leptothrix ochracea 1000x magnification	Leptothrix ochracea colonies in water
	Microbes isolated from Afican dust aerosols	Paenibacillus thiaminolyticus
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