Image:Theodor O Diener.jpg
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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. Image Number K3146-1
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This image is in the public domain because it contains materials that originally came from the Agricultural Research Service, the research agency of the United States Department of Agriculture. |  |
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| Date/Time | 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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