نتایج جستجو برای: fusarim graminearum
تعداد نتایج: 1658 فیلتر نتایج به سال:
Many fungi-infecting viruses, which are termed mycoviruses, have been identified, and most do not cause any visible symptoms. Some mycoviruses, however, can attenuate the virulence of the infected fungi, a phenomenon referred to as hypovirulence. To study fungus responses to virus infection, we established a model system composed of Fusarium graminearum and four mycoviruses including FgV1 (Fusa...
Priming refers to a mechanism whereby plants are sensitized to respond faster and/or more strongly to future pathogen attack. Here, we demonstrate that preexposure to the green leaf volatile Z-3-hexenyl acetate (Z-3-HAC) primed wheat (Triticum aestivum) for enhanced defense against subsequent infection with the hemibiotrophic fungus Fusarium graminearum. Bioassays showed that, after priming wit...
Pre-harvest contamination of forage maize by mycotoxin producing Fusarium species was investigated in the UK in 2011 and 2012. A total of 15 Fusarium species were identified from a collection of 1,761 Fusarium isolates recovered from maize stalks and kernels. This study characterized the diversity of Fusarium species present in forage maize in the UK. The predominant species detected were F. gr...
A genomic DNA fragment containing Tri6, a transcription activator gene of trichothecene biosynthesis, was cloned by vectorette PCR from Fusarium graminearum F15, which produces type B trichothecene, deoxynivalenol. The nucleotide sequence of the gene showed 84% of identity to that of the type A trichothecene producer Fusarium sporotrichioides NRRL 3299, but the sequence around the initiation co...
Thirty-seven isolates of Fusarium graminearum species complexobtained from wheat heads with Fusarium head blight symptoms were selected and used for phylogenetic studies. They were collected from different localities of Moghan plain (Ardebil province, Iran). Partial sequences of translation elongation factor 1-alpha (TEF), putative reductase (RED) and UTP-ammonia ligase (URA) genes were amplifi...
بیماری بلایت فوزاریومی سنبله یکی از مهمترین بیماریهای قارچی گندم در ایران و سایر نقاط جهان میباشد. عامل اصلی این بیماری Fusarium graminearum شناخته شده که گندم را در طی دوره گلدهی آلوده کرده و نه تنها باعث کاهش محصول میگردد، بلکه با تولید زهرابه قارچی، موجب مسمومیت در انسان و دام نیز می شود. در این مطالعه 60 جدایه F. graminearum جداشده از مزارع گندم آلوده از استانهای مختلف ایران مورد بر...
Barley is affected by Fusarium head blight. The mycotoxins produced by F. graminearum affect the grain safety, malting and beer quality. Barley can be irradiated with electron beam radiation to reduce the fungal contamination, but there may be some Fusarium strains which can survive, grow and produce mycotoxins as irradiated barley is malted. Random amplified polymorphic DNA (RAPD) analysis was...
Fusarium head blight (FHB) caused by infection with Fusarium graminearum leads to enormous losses to crop growers, and may contaminate grains with a number of Fusarium mycotoxins that pose serious risks to human and animal health. Antagonistic bacteria that are used to prevent FHB offer attractive alternatives or supplements to synthetic fungicides for controlling FHB without the negative effec...
بیماری بلایت فوزاریومی سنبله یکی از مهمترین بیماریهای قارچی گندم در ایران و سایر نقاط جهان میباشد. عامل اصلی این بیماری fusarium graminearum شناخته شده که گندم را در طی دوره گلدهی آلوده کرده و نه تنها باعث کاهش محصول میگردد، بلکه با تولید زهرابه قارچی، موجب مسمومیت در انسان و دام نیز می شود. در این مطالعه 60 جدایه f. graminearum جداشده از مزارع گندم آلوده از استانهای مختلف ایران مورد بر...
Fusarium sp. produces various bioactive pigments widely used in pharmaceuticals, cosmetics, and the food industry. This study investigated antimicrobial effect of pigment produced from highest pigment-producing strain determined optimum growth conditions agro-industrial residues to obtain maximum production. equiseti, graminearum, poae strains were tested terms their production levels. Pigment ...
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