نتایج جستجو برای: cucumber mosaic virus
تعداد نتایج: 415474 فیلتر نتایج به سال:
Viroids and most viral satellites have small, noncoding, and highly structured RNA genomes. How they cause disease symptoms without encoding proteins and why they have characteristic secondary structures are two longstanding questions. Recent studies have shown that both viroids and satellites are capable of inducing RNA silencing, suggesting a possible role of this mechanism in the pathology a...
Identification of the determinants of pathogen reservoir potential is central to understand disease emergence. It has been proposed that host lifespan is one such determinant: short-lived hosts will invest less in costly defenses against pathogens, so that they will be more susceptible to infection, more competent as sources of infection and/or will sustain larger vector populations, thus being...
باقلا (vicia faba l.) یکی از حبوبات مهم در بسیاری از کشورها به شمار می رود و بهعنوان منبع پروتئینی برای تغذیه انسان، دام و طیور و نیز در تثبیت نیتروژن از اهمیت ویژهای برخوردار است. عارضه ای مشکوک به بیماری ویروسی با علائم موزائیک، پیچیدگی و بدشکلی برگ و ساقه سالهای متمادی در مزارع باقلای استان خوزستان مشاهده شد. نتایج بررسی بذربرد بودن عارضه نشان داد که عامل/عوامل عارضه یاد شده بذربرد می ب...
Recently, a Cucumber mosaic virus (CMV) strain, named as CMV-209, was isolated from Glycine soja. In this study, symptom expression of CMV-209 was analyzed in detail in Nicotiana benthamiana by comparing with that of CMV-Fny, which is a representative strain of CMV. Using infectious cDNA clones of CMV strains 209 and Fny, symptom expression of various pseudorecombinants between these two strain...
Rhizobacteria-Mediated Growth Promotion of Tomato Leads to Protection Against Cucumber mosaic virus.
ABSTRACT We evaluated combinations of two strains of plant growth-promoting rhizobacteria (PGPR) formulated with the carrier chitosan for the ability to induce growth promotion of tomato plants and resistance to infection by Cucumber mosaic virus (CMV). Each PGPR combination included GB03 (Bacillus subtilis) and one of the following PGPR strains: SE34 (B. pumilus), IN937a (B. amyloliquefaciens)...
background: potyviruses are accounted for 40% of viral diseases of various crops including vegetables and legumes. potyviruses can be transmitted through plant sap, seeds and many aphid species. due to ease of spread of these viruses detection of such viruses are crucial as to the control of the incited diseases. objectives: this study compared the efficiencies of two couples of primers in thei...
In vitro assembly of tobacco mosaic virus (TMV) from its constituent RNA and protein occurs in two steps: formation of the initial complex by interaction of the 5'-end of TMV-RNA with 20S protein aggregate, and growth of the helical rod by sequential addition of protein subunits.Such a process was also observed in the assembly of cucumber green mottle mosaic virus, which is also a rodshaped vir...
Nicotiana benthamiana often displays more intense symptoms after infection by RNA viruses than do other Nicotiana species. Here, we examined the role of RNA-dependent RNA polymerases (RdRPs) in N. benthamiana antiviral defense. cDNAs representing only two genes encoding RdRPs were identified in N. benthamiana. One RdRP was similar in sequence to SDE1/SGS2 required for maintenance of transgene s...
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