Further characterization of the nucleoprotein components of bean pod mottle virus

Abstract

Fractionated nucleoprotein components of bean pod mottle virus were shown to differ in base composition. The infectious bottom component (112 S) displayed a guanylic acid and uridylic acid enrichment over the noninfectious middle component (91 S). Sedimentation rates of extracted ribonucleic acid (RNA) suggest that the RNA deficiency of the middle particles results from the absence of a terminal or near-terminal portion of the RNA chain. A precursor-product relationship between the BPMV components could not be demonstrated by P 32 pulse labeling.