Studies on infection and multiplication of plant viruses in variegated tobacco plants. I. The multiplication of cucumber mosaic virus in white and green areas of variegated leaves

Nagao, N.

Science Bulletin of the Faculty of Agriculture, Kyushu University 35(3/4): 121-128


Accession: 000989549

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Infectivity of extracts from white (W) and green (G) areas was detected 24 h after inoculation, increased with time almost in parallel in both areas, peaked at 5 days and then fell. Virus conc. in W was always higher than in G. RNase activity in healthy leaves and inhibitory effect of CMV-excluded supernatant sol. prepared from inoculated leaves on infectivity were higher in W than in G. Virus movement from inoculated G to opposite uninoculated W was detected 6 and 4 days after inoculation in attached and detached leaves, respectively, that from G to G was retarded by 1-3 days with respect to that from G to W. Virus particles were scattered with ribosomes in the cytoplasm of mesophyll tissue. The difference in virus conc. between W and G is believed to be due to their differential photosynthetic ability.