during the study of powdery mildew related to erysiphaceae family from abardeh region in mashhad (khorasan-e-razavi province), one species of rose (rosa persica michx.ex juss, summer 2006) with symptoms of powdery mildew was collected. the symptoms observed with the naked eye including the dense cottony shape mycelia infected the leaf surfaces as well as some parts of the stem. mycelia were den...

Botanical gardens have extensive spatial databases of their plant specimens; however, the fungi occurring in them are generally unstudied. gardens, with great diversity, undoubtedly harbor a wide range symbiotic fungi, including those that plant-pathogenic. One such group is powdery mildews (Erysiphaceae). The among most prevalent and economically important pathogens world, an estimated 906 spe...

In this study, ITS–rDNA region was used to identify some anamorphic powdery mildews in Guilan province. According to the results, Erysiphe species on Vicia faba and Sesbania punicea showed 100% similarity to each other, however, without ITS sequence of holotype of E. sesbaniae it is impossible to make conclusion whether Vicia faba powdery mildew fungus actually belongs to E. sesbaniae or E. tri...

(2864) Microsphaera alphitoides Griffon & Maubl. in Bull. Trimestriel Soc. Mycol. France 28: 103. 1912, nom. cons. prop. Typus: Switzerland, Neuchâtel, on Quercus robur, 4 Apr 1999, Takamatsu (TNS barcode TNS-F87437), typ. Erysiphe (Griffon Maubl.) U. Braun S. Takam. (in Schlechtendalia 4: 5. 2000) (≡ 1912) is a common, widespread, and almost cosmopolitan powdery mildew oaks. It pathogen of eco...

In spite of the economic importance of powdery mildew on cucurbits, literature and databases about the fungal species reveal different species numbers and names, often indicating only two species, with inconsistent host specificities for different members of Cucurbitaceae. Revision of the available literature indicates the presence of at least six species of powdery mildews on Cucurbitaceae wit...