Das Auftreten von Viruspartikeln inAbutilon-Chloroplasten

Summary

The leaves ofAbutilon striatum v. Thompson infected with chlorosis proved to contain spheroid virus particles of about 800 Å diameter. Each particle consisted of a central dark staining core of about 160 Å. This central core is surrounded by an inner and an outer envelope. The particles are found in the cytoplasm, and there is evidence to show that virus particles are able to penetrate into the chloroplasts.