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The new plant virus family Flexiviridae is described. The family is named because its members have flexuous virions and it includes the existing genera Allexivirus, Capillovirus, Carlavirus, Foveavirus, Potexvirus, Trichovirus and Vitivirus, plus the new genus Mandarivirus together with some related viruses not assigned to any genus. The family is justified(More)
Ourmia melon virus (OuMV), Epirus cherry virus (EpCV) and Cassava virus C (CsVC) are three species placed in the genus Ourmiavirus. We cloned and sequenced their RNA genomes. The sizes of the three genomic RNAs of OuMV, the type member of the genus, were 2814, 1064 and 974 nt and each had one open reading frame. RNA1 potentially encoded a 97.5 kDa protein(More)
Citrus leaf blotch virus (CLBV) was purified from leaves of Nagami kumquat SRA-153 that showed bud union crease when propagated on Troyer citrange. Virions were filamentous particles (960 x 14 nm) containing a 42 kDa protein and a single-stranded RNA (ssRNA) of about 9,000 nt (Mr 3 x 10(6)). Infected tissue contained three species of double-stranded RNA(More)
Big-vein is a widespread and damaging disease of lettuce, transmitted through soil by the chytrid fungus Olpidium brassicae, and generally supposed to be caused by Lettuce big-vein virus (LBVV; genus Varicosavirus). This virus is reported to have rigid rod-shaped particles, a divided double-stranded RNA genome, and one capsid protein of 48 kD, but has not(More)
An isolate of Indian citrus ringspot virus from Kinnow mandarin in northern India had flexuous particles with evident cross-banding and a modal length of 650 nm. It was mechanically transmitted to five herbaceous hosts including Phaseolus vulgaris cv Saxa, in which it became systemic. In thin sections, virus particles were observed in the cytoplasm of(More)
Human papillomavirus 8 (HPV-8), one of the high-risk cutaneous papillomaviruses (cHPVs), is associated with epidermodysplasia verruciformis and nonmelanoma skin cancer in immuno-compromised individuals. Currently, no vaccines against cHPVs have been reported; however, recent studies on cross-neutralizing properties of their capsid proteins (CP) have(More)
In negative stain preparations, the particles of rice gall dwarf virus (RGDV) had the form of angular icosahedra, approximately 65 nm in diameter, and resembled Phytoreovirus particles. The genomic double-stranded RNA of RGDV was fractionated by PAGE into 12 segments similar to those of the RNAs of the phytoreoviruses, wound tumor virus and rice dwarf(More)