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55.3 MB (10.9 MB compressed)
3874 x 4987 pixels
32.8 x 42.2 cm ⏐ 12.9 x 16.6 in (300dpi)
DR GOPAL MURTI / SCIENCE PHOTO LIBRARY DR GOPAL MURTI / SCIENCE PHOTO LIBRARY
Coloured transmission electron micrograph (TEM) of tobacco mosaic virus (TMV) particles in a paracrystalline array. Each rod-shaped virus consists of a protein coat (purple) surrounding an RNA (ribonucleic acid) genome. TMV was first identified in 1886 in the tobacco plant, one of the world's major crash crops. The virus also infects many other plants, such as potatoes and tomatoes. The symptoms are mosaic-like lesions on the leaves, which eventually lead to plant death. Magnification: x58,500 when printed at 10 centimetres tall.
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