نتایج جستجو برای: pyricularia
تعداد نتایج: 583 فیلتر نتایج به سال:
Incidence of leaf blast on nursery plants and pitting disease on maturing banana bunches has been recorded in banana plantations during rainy season in Eastern India during 2014 to 2015. Taxonomical identification as well as DNA sequence analysis of the internal transcribed spacer region of fungus isolated from affected tissue culture derived plantlets and fruits confirmed the pathogen to be Py...
MicroRNAs (miRNAs) are indispensable regulators for development and defense in eukaryotes. However, the miRNA species have not been explored for rice (Oryza sativa) immunity against the blast fungus Magnaporthe oryzae, the most devastating fungal pathogen in rice production worldwide. Here, by deep sequencing small RNA libraries from susceptible and resistant lines in normal conditions and upon...
rice blast, caused by pyricularia grisea, is one of the most important diseases of this crop in iran and all over the world. to evaluate the relationship between spore population (sp) and meteorological factors, sp was measured daily using spore trap during growing seasons of 2006-2008 in rasht and lahijan regions (guilan province, iran). weather data including precipitation, daily maximum and ...
چهل جدایه تک اسپور magnaporthe grisea، به منظور شناسایی گروه های سازگاری رویشی و تعیین تنوع ژنتیکی بر اساس انگشت نگاری dna به روش rep-pcr در این تحقیق استفاده شدند. جدایه ها در سال های 1382-1384 از تعدادی علف هرز تیره گرامینه شامل علف انگشتی (digitaria sanguinalis)، ارزن دم روباهی (setaria italica)، سوروف (echinochloa crus-galli) و علف هرز نامعلوم جمع آوری گردیدند و در کلکسیون قارچ شناسی پردیس ...
The phenotypic and genetic diversity of 77 isolates of Pyricularia grisea collected from two upland rice cultivars, Maravilha and Primavera, was studied. Isolates exhibiting compatible reaction to cv.Primavera were incompatible to cv.Maravilha and vice versa, with the exception of six isolates that were compatible to both cultivars. The virulence of isolates from cv. Maravilha on 32 test genoty...
In a previous paper (Eto et al., 1975), we found the metabolic formation of a quinol phosphate in houseflies from triphenyl phosphate, which has been known as a malathion synergist (Plapp et al., 1963). It has been also reported that the fungicide edifenphos (S, S-diphenyl ethyl phosphorodithiolate ; HinosanQ) was partially metabolized through p-hydroxylation in Pyricularia oryzae (Uesugi and T...
This study aimed at the development and validation of an accurate, more affordable, precise digital imaging resazurin-based fungicide sensitivity colorimetric assay (COL-assay) for fungal plant pathogens from genera Mycosphaerella Pyricularia. proposed was based on estimates resazurin reduction, which used as a metabolic indicator respiration activity microplate cultures. As model systems, we y...
A new antibiotic amipurimycin, active against Pyricularia oryzae in vitro and in vivo, was isolated from the culture filtrate of Streptomyces novoguineensis nov. sp. The antibiotic was purified by a combination of ion-exchange and adsorption chromatography based on its amphoteric water-soluble characteristics. Its molecular formula was estimated to be C2oH27~31N7O8.H2O. Characteristic maxima in...
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