File:Theodor O Diener.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	05:15, 26 September 2006		640 × 944 (161 KB)	PDH	Plant pathologist Theodor O. Diener took the scientific world by surprise in 1971 when he discovered the viroid, a plant pathogen 80 times smaller than a virus. Photo by Barry Fitzgerald. [http://www.ars.usda.gov/is/graphics/photos/nov03/k3146-1.htm Imag

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