نتایج جستجو برای: erysiphe
تعداد نتایج: 764 فیلتر نتایج به سال:
Recent advances in communications technology are revolutionizing the speed with which information of all kinds reaches the home and workplace. These advances, which include developments in the computer industry, interactive communication systems, laser and fiber optic based communication, and geostationary space platforms, are also affecting the extent and content of the information which is no...
Mutation-induced recessive alleles (mlo) of the barley Mlo locus confer a leaf lesion phenotype and broad spectrum resistance to the fungal pathogen, Erysiphe graminis f. sp. hordei. The gene has been isolated using a positional cloning approach. Analysis of 11 mutagen-induced mlo alleles revealed mutations leading in each case to alterations of the deduced Mlo wild-type amino acid sequence. Su...
Five accessions of Aegilops speltoides and 67 European wheat cultivars (winter and spring) originating from the Czech Republic, Germany, Poland, Russia, Slovakia, United Kingdom, and 4 non-European wheat cultivars from Brazil and the USA were examined with molecular Sequence Tagged Site (STS) markers for resistance genes to powdery mildew: Pm 1, Pm 2, Pm 3 and Pm 13. All markers gave clear, rep...
سفیدک پودری از بیماریهای مهم گوجهفرنگی در مزارع و گلخانههای دنیا محسوب میشود و در ایران گونه Leveillula tauricaبهعنوان تنها عامل این بیماری گزارش شده است. طی مطالعه قارچهای تیره Erysiphaceae در استان اردبیل، برگهای گوجهفرنگی با علایم سفیدک پودری از گلخانهای در شهر اردبیل جمعآوری و جدایهها بر اساس ویژگیهای ریختشناختی مورد شناسایی اولیه قرار گرفتند. سپس DNA ژنومی قا...
Uncinula necator and Botrytis cinerea are the most destructive pathogens of the grapevine in Tunisia and elsewhere. We used two strains of Bacillus subtilis group, B27 and B29 to control powdery mildew and the grey mold disease of the grapevine. Green house experiments showed that B29 and B27 strains of the bacteria efficiently reduced the severity of powdery mildew up to 50% and 60%, respectiv...
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