Mosaic Diseases Caused by Potyviruses

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Symptoms on plants affected by mosaic diseases can vary. In general, plants develop an overall lighter coloring and a bushy appearance. Close up symptoms include a mosaic (alternating light and dark green areas) on some leaves, especially the younger ones. Leaves may also be curled. Fruit may be distorted and develop mosaic symptoms. Internally, brown areas and necrotic areas develop and the fruit do not ripen normally.

Presence among species

Pathogen Susceptible Host
Potato virus Y Solanum tuberosum
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