Publications

the effect of helper component on the uptake and localization of potyviruses in myzus persicae.	125i-labeled virions were used to determine whether helper component (hc) affected the uptake or distribution of potyviruses in aphids. aphids were allowed to acquire purified, 125i-labeled tobacco etch virus or potato virus y mixed with hc or with inactivated hc. helper component had no effect upon uptake of labeled virus, as measured by gamma counting. autoradiography of freeze-sectioned aphids revealed, however, that in the presence of hc, label was associated with the maxillary stylets and w ...	1986	18640647
host range and characterization of sunflower mosaic virus.	abstract sunflower mosaic is caused by a putative member of the family potyviridae. sunflower mosaic virus (sumv) was characterized in terms of host range, physical and biological characteristics, and partial nucleotide and amino acid sequence. cells infected with sumv had cytoplasmic inclusion bodies typical of potyviruses. of 74 genera tested, only species in helianthus, sanvitalia, and zinnia, all asteraceae, were systemic hosts. commercial sunflower hybrids from the united states, europe, an ...	2002	18943264
the helper-component protease transmission factor of tobacco etch potyvirus binds specifically to an aphid ribosomal protein homologous to the laminin receptor precursor.	potyviruses are plant pathogens transmitted by aphids in a non-persistent manner. during transmission, the virus-encoded factor helper-component protease (hcpro) is presumed to act as a molecular bridge, mediating the reversible retention of virions to uncharacterized binding sites in the vector mouthparts. whilst the predicted interaction between hcpro and the coat protein (cp) of virions has been confirmed experimentally, the characterization of putative hcpro-specific receptors in aphids has ...	2010	20631085