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infectivity of nanovirus dnas: induction of disease by cloned genome components of faba bean necrotic yellows virus.circumstantial evidence suggests that the genome of faba bean necrotic yellows virus (fbnyv), a nanovirus, consists of eight distinct, circular, single-stranded dnas, each of about 1 kb and encoding only one protein. here, the use of cloned full-length fbnyv dnas for reproducing fbnyv-like symptoms in vicia faba, the principal natural host of fbnyv, is reported. characteristic symptoms of fbnyv infection were obtained in faba bean plants following biolistic dna delivery or agroinoculation with a ...200616690940
faba bean necrotic yellows virus (genus nanovirus) requires a helper factor for its aphid transmission.purified faba bean necrotic yellows virus (fbnyv; genus nanovirus) alone is not transmissible by its aphid vector, acyrthosiphon pisum, regardless of whether it is acquired from artificial diets or directly microinjected into the aphid's hemocoel. the purified virus contains all of the genetic information required for its infection cycle as it readily replicated in cowpea protoplasts and systemically infected vicia faba seedlings that were biolistically inoculated using gold particles coated wit ...199910489354
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