File:Theodor O Diener.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 05:15, 26 September 2006 | 640 × 944 (161 KB) | commons>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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