Deep sequencing analysis of an asymptomatic grapevine revealed a virome containing five RNA viruses and a viroid. Of these, Grapevine leafroll-associated virus 7 (GLRaV-7), an unassigned closterovirus, was by far the most prominently represented sequence in the analysis. Graft-inoculation of the infection to another grape variety confirmed the lack of the leafroll disease symptoms, even though ...

Comparatively little investigatioii has been made into the fundamental iiietabolic processes of plant viruses. BRONFENBRENNER and REICHERT (2, 3, 4) were unable to detect any respiration in either viruses or bacteriophages. The isolation of virus, free from plant cells, and in a condition suitable for such experiments, is obviously very difficult. The effect of virus infections on the metabolis...

Potato leafroll virus (PLRV) capsid comprises 180 coat protein (CP) subunits, with some percentage containing a readthrough domain (RTD) extension located on the particle's surface. The RTD N terminus is highly conserved in luteovirids and this study sought to identify biologically active sites within this region of the PLRV RTD. Fourteen three-amino-acid-deletion mutants were generated from a ...

The vast majority of plant viruses are transmitted by insect vectors, with many crucial aspects the transmission process being mediated key protein–protein interactions. Still, very few vector proteins interacting have been identified and functionally characterized. Potato leafroll virus (PLRV) is most efficiently Myzus persicae, green peach aphid, in a circulative, non-propagative manner. Usin...