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Peronospora Potentillae-reptantis
''Peronospora'' is a genus of downy mildews that are obligate plant pathogens. They can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. ''Peronospora'' is most closely related to '' Pseudoperonospora'', and together they form the clade of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to other genera based on phylogenetic evidence. Among these are the species now in '' Hyaloperonospora'', important pathogens of the Brassicaceae. Now, the ''Peronospora'' species of most importance is likely '' Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it has been classified as a bioweapon. History ''Peronospora'' was first described in 1837 by August Carl Joseph Corda, a Czech mycologist and physician, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Manshurica
''Peronospora manshurica'' is a plant pathogen. It is a widespread disease on the leaves of soybeans and other crop plants. The fungi is commonly referred to as downy mildew, "leafspot", or "leaf-spot". Symptoms The most visible symptoms of ''P. manshurica'' are pale green to light yellow spots that enlarge into pale to bright yellow lesions of variable size and shape. Lesions later turn grayish-brown to dark-brown with a yellowish-green margin that may eventually become entirely brown. Tufts of grayish to pale-colored sporangiophores on the underside of leaves easily distinguish the infection from other foliar diseases. Disease cycle ''Peronospora manshurica'' commonly begins its disease cycle in the spring, with overwintering oospores mainly serving as the primary inoculum. This primarily occurs by the use of oospore encrusted seeds for planting. Oospores, and sometimes even mycelium, surviving on plant material can also serve as the primary inoculum. After the first infectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Agrimoniae
''Peronospora'' is a genus of downy mildews that are obligate plant pathogens. They can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. ''Peronospora'' is most closely related to '' Pseudoperonospora'', and together they form the clade of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to other genera based on phylogenetic evidence. Among these are the species now in '' Hyaloperonospora'', important pathogens of the Brassicaceae. Now, the ''Peronospora'' species of most importance is likely '' Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it has been classified as a bioweapon. History ''Peronospora'' was first described in 1837 by August Carl Joseph Corda, a Czech mycologist and physician, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Argemones
''Peronospora'' is a genus of downy mildews that are obligate plant pathogens. They can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. ''Peronospora'' is most closely related to '' Pseudoperonospora'', and together they form the clade of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to other genera based on phylogenetic evidence. Among these are the species now in '' Hyaloperonospora'', important pathogens of the Brassicaceae. Now, the ''Peronospora'' species of most importance is likely '' Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it has been classified as a bioweapon. History ''Peronospora'' was first described in 1837 by August Carl Joseph Corda, a Czech mycologist and physician, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Arborescens
''Peronospora arborescens'' is a plant pathogen. It causes downy mildew on leaves of ''Papaver'' spp. It has economic importance on ''Papaver somniferum'' grown as an oilseed crop, for example in central and eastern Europe. It is controlled by sanitation, crop rotation Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. This practice reduces the reliance of crops on one set of nutrients, pest and weed pressure, along with the pro ..., use of clean seed and fungicide sprays of the foliage. There are other species of ''Peronospora'' which occur on ''Papaver'': ''Peronospora argemones'' ( Gäum.), ''Peronospora cristata'' ( Tranzschel), and ''Peronospora papaveris-pilosi'' (Vienn.-Bourg.). References Further reading {{Taxonbar, from=Q7169454 Peronosporales Protists described in 1855 Water mould plant pathogens and diseases Food plant pathogens and diseases Oomycete species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Aquatica
''Peronospora'' is a genus of downy mildews that are obligate plant pathogens. They can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. ''Peronospora'' is most closely related to '' Pseudoperonospora'', and together they form the clade of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to other genera based on phylogenetic evidence. Among these are the species now in '' Hyaloperonospora'', important pathogens of the Brassicaceae. Now, the ''Peronospora'' species of most importance is likely '' Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it has been classified as a bioweapon. History ''Peronospora'' was first described in 1837 by August Carl Joseph Corda, a Czech mycologist and physician, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Antirrhini
''Peronospora antirrhini'' is a plant pathogen. It causes downy mildew on leaves of species of ''Antirrhinum ''Antirrhinum'' is a genus of plants in the Plantaginaceae family, commonly known as dragon flowers or snapdragons because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They ...'' and related genera (e.g. '' Misopates''). The disease is generally of minor importance, but can be damaging on antirrhinum seedlings in the glasshouse, which may be systemically infected. References Further reading {{Taxonbar, from=Q7169455 Water mould plant pathogens and diseases Ornamental plant pathogens and diseases Peronosporales Protists described in 1874 Oomycete species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peronospora Anagallidis
''Peronospora'' is a genus of downy mildews that are obligate plant pathogens. They can cause severe damage to many different cultivated crops, as well as wild and ornamental plants. ''Peronospora'' is most closely related to '' Pseudoperonospora'', and together they form the clade of downy mildews with coloured conidia. ''Peronospora'' has far more species than any other genus of the downy mildews. However, many species have been moved from this genus to other genera based on phylogenetic evidence. Among these are the species now in '' Hyaloperonospora'', important pathogens of the Brassicaceae. Now, the ''Peronospora'' species of most importance is likely '' Peronospora tabacina''. ''Peronospora tabacina'' causes blue mold on tobacco plants and can severely reduce yields of this economically important crop to the point where it has been classified as a bioweapon. History ''Peronospora'' was first described in 1837 by August Carl Joseph Corda, a Czech mycologist and physician, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |