نتایج جستجو برای: pyrenophora tritici
تعداد نتایج: 1884 فیلتر نتایج به سال:
لکۀ خرمایی گندم که توسط قارچ pyrenophora tritici-repentis ایجاد می گردد، به عنوان یک بیماری مهم گندم همه ساله خسارات فراوانی به بار می آورد. استفاده از تکنیک های دقیق، سریع و کم هزینه برای ارزیابی لاین های گندم نسبت به بیماری های مهم همواره مورد توجه به نژادگران بوده است. در این تحقیق واکنش 20 لاین گندم نسبت به toxa که مهم ترین فاکتور بیماری زایی p. tritici-repentisاست، با استفاده از تزریق توکس...
The plant pathogenic fungus Pyrenophora tritici-repentis secretes host-selective toxins (HSTs) that function as pathogenicity factors. Unlike most HSTs that are products of enzymatic pathways, at least two toxins produced by P. tritici-repentis are proteins and, thus, products of single genes. Sensitivity to these toxins in the host is conferred by a single gene for each toxin. To study the sit...
Pyrenophora tritici-repentis is a necrotrophic fungus causal to the disease tan spot of wheat, whose contribution to crop loss has increased significantly during the last few decades. Pathogenicity by this fungus is attributed to the production of host-selective toxins (HST), which are recognized by their host in a genotype-specific manner. To better understand the mechanisms that have led to t...
Abstract Leaf blotch diseases (LBD), such as Septoria nodorum bloch ( Parastagnospora ), tritici Zymoseptoria ) and Tan spot Pyrenophora tritici-repentis can cause severe yield losses (up to 50%) in Norwegian spring wheat Triticum aestivum are mainly controlled by fungicide applications. A forecasting model predict disease risk be an important tool optimize control. The association between spec...
بیماری لکه خرمایی گندم با عامل قارچی Pyrenophora tritici-repentis(Died.) Drechsler در حال حاضر در مناطق شمالی کشور گسترش زیادی پیدا کرده است. هر چند گزارشی از جداسازی فرم غیرجنسی قارچ با نام Drechslera tritici-repentis(Died.) Shoemaker از مازندران قبل...
The phytopathogenic fungus Pyrenophora tritici-repentis is a causal agent of tan spot. Antagonistic microorganisms can be used as non-chemical alternative treatment against the spot wheat. Bacillus velezensis BZR 336 g and 517 stains were selected most active potential biocontrol agents. We found that B. strains exhibited antagonistic activity P. Kr-15/2016 in vitro: they inhibited mycelium gro...
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