Results 101 to 110 of about 312 (119)
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Reclassification of an enigmatic downy mildew species on lovegrass (Eragrostis) to the new genus Eraphthora, with a key to the genera of the Peronosporaceae

Mycological Progress, 2011
Graminicolous downy mildews affect economical important crops like sorghum, maize and pearl millet, and also a variety of wild grasses, which pathogens have hitherto been much less studied. This also applies to an enigmatic downy mildew from Eragrostis cilianensis, which exhibits a chimeric appearance, with similarities to Basidiophora, Sclerophthora ...
Marco Thines   +2 more
exaly   +2 more sources

Cryptic diversity of Plasmopara viticola (Oomycota, Peronosporaceae) in North America

Organisms Diversity & Evolution, 2010
Plasmopara viticola is the causal agent of grapevine downy mildew and is among the most important diseases in viticulture. It originates from North America, where it coevolved with wild Vitis species. Beginning in the 1870s it turned into a global epidemic that has been causing severe yield losses.
Schröder, S.   +3 more
openaire   +3 more sources

Bemerkungen zur Biologie einiger Frühjahrspilze der Familie Peronosporaceae.

Česká Mykologie, 1964
The author distinguishes three ecological groups of spring downy mildew species in the family Peronosporaceae: 1) those with systemic infection via persistent mycelium in vegetative organs, 2) those with systemic infection via fruits or seeds, and 3) those with dispersive infection initiated from oospores.
openaire   +1 more source

Hyaloperonospora erucae sp. nov. (Peronosporaceae; Oomycota), the downy mildew pathogen of arugula (Eruca sativa)

European Journal of Plant Pathology, 2017
Arugula (or rocket; Eruca sativa) is a popular leafy vegetable often used as a salad. Downy mildew disease poses a major threat to the cultivation of this crop. Along with a quick expansion of the cultivated land of arugula, significant losses due to this disease are continuously reported worldwide. Previous studies have attributed arugula downy mildew
Young-Joon Choi   +2 more
openaire   +2 more sources

Growth, occurrence and development of septa in Plasmopara viticola and other members of the Peronosporaceae using light- and epifluorescence-microscopy

Mycological Research, 2005
Although Plasmopara viticola causes grape downy mildew in most, if not all, wine producing countries, many basic biological or chemical aspects are still unknown and thus the histopathological changes during development of this oomycete pathogen were studied. The fluorochromes Aniline blue and Uvitex 2B were successfully used in whole leaf stainings to
openaire   +2 more sources

Characterisation and phylogeny of repeated elements giving rise to exceptional length of ITS2 in several downy mildew genera (Peronosporaceae)

Fungal Genetics and Biology, 2007
In downy mildews with pyriform haustoria (DMPH), ITS lengths between 1121 and 2587kb were observed. The extreme length of ITS is due to sequence repeats of a poorly conserved part of the ITS2. Secondary structure analysis suggests that individual repeats may form long hairpin structures.
openaire   +2 more sources

Symptom development on two wild, perennial grasses infected by Peronosclerospora species (Family Peronosporaceae: the downy-mildew fungi)

Australian Journal of Botany, 2002
The reproductive structures of the downy-mildew fungi, Peronosclerospora noblei and Peronosclerospora eriochloae , develop only on chlorotic leaves of tall, vegetative tillers of the perennial grasses Sorghum leiocladum (wild sorghum) and Eriochloa pseudoacrotricha (early spring grass), respectively.
openaire   +3 more sources

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