English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

SummaryKale virus (KV), turnip virus (HZ) and radish mosaic virus (RMV) are slightly related serologically to cowpea mosaic virus. Purified preparations comprize, top, middle and bottom components, of which only the last two contain nucleic acid. The nucleoprotein components of each virus were separated by centrifuging twice through a sucrose gradient in an MSE BXIV zonal rotor. Sometimes this was followed by centrifuging to equilibrium in a density gradient of rubidium bromide. Neither nucleoprotein component was infective alone, but infectivity was restored when each was mixed with the other component.Mixtures in which the two components came from different viruses were infective only when they were made with KV and HZ. Serologically these two viruses are more closely related than either is to RMV. KV differed from HZ by two characters related to the coat protein. KV particles regularly formed aggregates of 12 particles and contained antigens that were not present in HZ. Single lesion isolates from mixtures of bottom component from one strain and middle component from the other did not form aggregates and lacked the antigens present in KV. Like cowpea mosaic virus, KV and HZ each have two coat proteins, and our results can be explained if each of the four virus components codes for a different coat protein. Therefore, the coat protein of the virus is coded by the nucleic acid of both middle and bottom components.

Genetic Complementation between Middle and Bottom Components of Two Strains of Radish Mosaic Virus