Weeds as reservoirs for destructive plant pathogens have a significant impact on the viral epidemiology, ecology and, result, local economy, and are therefore being investigated in many parts of world. Thus, aim this study was to investigate virus occurrence red dead-nettle plants (Lamium purpureum L.) widespread urban field conditions throughout Kyiv region Ukraine. Methods. Field crop observa...

A survey for the agro-ecological distribution of Pepper veinal mottle virus (PVMV) (Family Potyviridae, genus Potyvirus) its incidence and severity on cultivated pepper was conducted between 2003 to 2005 in six agro-ecological zones in Nigeria, comprising the major pepper producing areas of the humid forest, derived savanna, southern Guinea savanna, mid-altitude, northern Guinea savanna and Sud...

Dengue fever is the most significant mosquito transmitted viral disease worldwide, but there is no commercially available vaccine to protect against infection. Subunit vaccines, comprising of a small antigenic region of the dengue E protein offer considerable advantages over more traditional methodologies of vaccine production, but are hampered by the requirement to produce large quantities of ...

Plum pox, an invasive disease recently identified in Pennsylvania stone fruit orchards, is caused by the aphid-transmitted Plum pox virus (genus Potyvirus, family Potyviridae, PPV). To identify potential vectors, we described the aphid species communities and the seasonal dynamics of the dominant aphid species within Pennsylvania peach orchards. Aphids were trapped weekly in 2002 and 2003 from ...

UNLABELLED Several plant viruses encode elements at the 5' end of their RNAs, which, unlike most cellular mRNAs, can initiate translation in the absence of a 5' m7GpppG cap. Here, we describe an exceptionally long (739-nucleotide [nt]) leader sequence in triticum mosaic virus (TriMV), a recently emerged wheat pathogen that belongs to the Potyviridae family of positive-strand RNA viruses. We dem...

 Two potyviruses that infect sunflower (Helianthus annuus L.) crops have been reported in Argentina. Sunflower chlorotic mottle virus (SuCMoV) is the most widely distributed one, with two strains: common and ring spot, which have been completely characterized. Sunflower mild mosaic virus (SuMMoV) that produces a chlorotic mild mosaic on sunflower commercial crops was detected in the rural area...

Pathogens have evolved various strategies to overcome host immunity for successful infection. Maize chlorotic mottle virus (MCMV) can cause lethal necrosis in maize (Zea mays) when it coinfects with a the Potyviridae family. However, MCMV pathogenicity determinant remains largely unknown. Here we show that P31 protein of is important viral accumulation and essential symptom development. Ectopic...

Blackberry yellow vein disease causes devastating losses on blackberry in the south and southeastern United States. Blackberry yellow vein associated virus (BYVaV) was identified as the putative causal agent of the disease but the identification of latent infections of BYVaV led to the investigation of additional agents being involved in symptomatology. A potyvirus, designated as Blackberry vir...