| Plasmopara viticola | ||||||||||||||
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| Scientific classification | ||||||||||||||
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| Binomial name | ||||||||||||||
| Plasmopara viticola (Berk. & M.A. Curtis) Berl. & De Toni, (1888) |
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Botrytis viticola Berk. & M.A. Curtis, (1848) |
Plasmopara viticola, the causal agent of grapevine downy mildew, is a heterothallic oomycete that overwinters as oospores in leaf litter and soil. In the spring, oospores germinate to produce macrosporangia, which under wet conditions release zoospores. Zoospores are splashed by rain into the canopy, where they swim to and infect through stomata. After 7–10 days, yellow lesions appear on foliage. During favorable weather, the lesions sporulate and new secondary infections occur (Kennelly et al., 2006).
External links
- Index Fungorum
- USDA ARS Fungal Database
- Plasmopara viticola
- Contributions of oospore inoculum to epidemics of grapevine downy mildew (Plasmopara viticola)
- Population genetic structure of Plasmopara viticola after 125 years of colonization in European vineyards
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