نتایج جستجو برای: فوزاریوم سنبله fusarium graminearum
تعداد نتایج: 16771 فیلتر نتایج به سال:
Fungal aldoxime dehydratase (Oxd) of Fusarium graminearum MAFF305135 was purified and characterized for the first time from its overexpressing Escherichia coli transformant. The enzyme showed about 20% identity with known Oxds, and had similar enzymatic properties with nitrilase-linked Oxd from the Bacillus strain. It belongs to a group of phenylacetaldoxime dehydratases (EC 4.99.1.7), based on...
We report the use of three glycosidase inhibitors, the bean polygalacturonase inhibiting protein 2 (PvPGIP2), the kiwi pectin methyl esterase inhibitor (AcPMEI), and the Triticum aestivum xylanase inhibitor III (TAXI-III), to control leaf blotch and Fusarium Head Blight (FHB) symptoms caused by the fungal pathogens Bipolaris sorokiniana and Fusarium graminearum. We produced transgenic durum whe...
این تحقیق به منظور شناسایی، بررسی بیماریزایی، و تعیین پراکنش گونه های فوزاریوم جدا شده از ریشه و طوقه گندم در استان انجام شد. در طی سالهای 1375 و 1376، از 45 مزرعه گندم در شهرستان بجنورد، بیرجند، تربت جام، تربت حیدریه، چناران، شیروان، فریمان، قاین، قوچان، کاشمر، مشهد و نیشابور بازدید شد. نمونه ها از بخشهای ریشه و طوقه گیاهان مشکوک به آلودگی فوزاریومی در محل ریشه و طوقه گرفته شده و به آزمایشگاه ...
بیماری بلایت فوزاریومی سنبله که توسط قارچ Fusarium graminearum ایجاد می‌شود، یکی از بیماری‌های مخرب گندم در اقلیم گرم و مرطوب شمال ایران است. این بیماری علاوه بر کاهش محصول، به علت تولید مایکوتوکسین‌های مختلف توسط عامل بیماری تهدیدی جدی برای سلامت انسان و دام به شمار می‌رود. در تحقیق حاضر بیست ژنوتیپ امیدبخش گندم به همراه دو رقم شاهد سومای 3 (Sumai 3) و فلات، با استفاده از نشانگرهای مولکولی SSR...
Aims: To analyze phenolic compounds and evaluate antifungal activity of methanolic and ethanolic extract's from Cymbopogon citratus against Fusarium graminearum and Fusarium oxysporum sp tulipae. Study Design: Activity directed antifungal activity, total phenolic compounds determination, total antioxidant determination and High Performance Liquid Chromatography (HPLC) phenolic compounds analysi...
During the past decade, the plant disease called scab or Fusarium head blight of wheat and barley has reached epidemic proportions in North America and elsewhere in the world. Scab is an economically devastating plant disease, not only because it causes significant reduction in seed yields and quality, but also because infested seeds are often contaminated with trichothecene and estrogenic myco...
To determine if differences exist in the ability of three Fusarium species (F. graminearum, F. verticillioides, and F. subglutinans) to infect maize ears as the silks and kernels mature, one moderately resistant and two susceptible hybrids were inoculated at two points of entry (silk channel and kernels) in 1994 and 1995. Inoculations were conducted nine times for each part of the ear starting ...
The production of deoxynivalenol (DONI) on rice, corn, wheat, and barley grains by Fusarium graminearum Schw. NRRL 5883 was investigated. Highest yields (91.9-202 ppm) were obtained on rice; yields on the other substrates were: corn (34.1-84.5 ppm), wheat (3.6-24.4 ppm), and barley (0-6.6 ppm). Fifty isolates of Fusarium from corn inoculated in the field in 1979 with a mixture of strains of F. ...
Fusarium head blight (FHB) caused by Fusarium graminearum is a destructive disease of wheat and barley worldwide. In a previous study of systematic characterization of protein kinase genes in F. graminearum, mutants of three putative components of the osmoregulation MAP kinase pathway were found to have distinct colony morphology and hyphal growth defects on PDA plates. Because the osmoregulati...
Fusarium graminearum is an important plant pathogen that causes head blight of major cereal crops. The fungus produces mycotoxins that are harmful to animal and human. In this study, a systematic analysis of 17 phenotypes of the mutants in 657 Fusarium graminearum genes encoding putative transcription factors (TFs) resulted in a database of over 11,000 phenotypes (phenome). This database provid...
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