نتایج جستجو برای: beet necrotic yellow vein virus
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علائم بیماری ریشه گنائی چغندرقند (rhizomania) در بسیاری از مزارع چغندرقند فارس و کهگیلویه و بویر احمد مشاهده شد. آزمون الیزا (elisa) با استفاده از آنتی سرم جدایه فرانسوی وجود ویروس زردی نکروتیک رگبرگ چغندرقند (beet necrotic yellow vein virus, bnyvv) را در گیاهان مزبور به اثبات رساند. رنگ آمیزی ریشه های چغندر قند مبتلا با اسیدفوکسین-لاکتوفنول و سپس مشاهده با میکروسکوپ نوری وجود قارچ polymyxa bet...
The RNA3 species of the beet necrotic yellow vein virus (BNYVV), a multipartite positive-stranded RNA phytovirus, contains the 'core' nucleotide sequence required for its systemic movement in Beta macrocarpa. Within this 'core' sequence resides a conserved "coremin" motif of 20 nucleotides that is absolutely essential for long-distance movement. RNA3 undergoes processing steps to yield a noncod...
To detect five plant viruses (Beet black scorch virus, Beet necrotic yellow vein virus, Eggplant mottled dwarf virus, Pelargonium zonate spot virus, and Rice yellow mottle virus) for quarantine purposes, we designed 15 RT-PCR primer sets. Primer design was based on the nucleotide sequence of the coat protein gene, which is highly conserved within species. All but one primer set successfully amp...
Two mutant strains of beet necrotic yellow vein virus (BNYVV) containing deletion mutants of RNA-2 were produced during serial passage in mechanically inoculated Tetragonia expansa leaves. The mutant strains were referred to as S-0a (RNA-1 + 2a) and G-0b (RNA-1 + 2b). RNA-2a and RNA-2b were about 4.3 kb and 4.2 kb in length, respectively, whereas normal sized RNA-2 was about 4.8 kb in length. I...
Beet necrotic yellow vein virus (BNYVV) and Beet soilborne mosaic virus (BSBMV) are members of the genus Benyvirus (9). Both viruses infect members of the family Chenopodiaceae, most notably sugar beet (Beta vulgaris L.), and are transmitted by the plasmodiophorid, Polymyxa betae (1,2). BNYVV infection causes rhizomania disease in sugar beet (4,21); however, BSBMV infection does not (28). BSBMV...
The complete nucleotide sequence of beet necrotic yellow vein virus RNA-1 is presented. The R N A molecule is 6746 nucleotides long excluding the poly(A) tail and has one long open reading f lame encoding a polypeptide of M r 237 389. The 3' terminal 60 residues of BNYVV RNA-1 display extensive sequence homology with the corresponding portions of BNYVV RNA-2, -3 and -4. Addi t ional 3' terminal...
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