For electron microscopic investigations, preparations 
were made from maize and sorghum leaves with clearly expressed 
Symptoms by the method of diluted suspension (11), The sap 
of plants damaged by the mosaic in natural condition and in 
artificially infected plants revealed an identical thread 
like particle measuring 760 to 780 nm. 
Table -e 
A few properties of maize viruses isolated 
from different places 
Preser- Length 
ved in of the 
dryness particles 
(days) (nm) 
Virus 
Maize mosaic virus 
ddscribed in Europe 700-850 
Maize dwarf mosaic 
virus described 
in the USA 
700=750 
Maize mosaic virus 
described in 
the Krasnodar 
region 
765-780 
Maize mosaic virus 
isolated in the _ 
Ukraine 50-53 1:500 4 760-780 
Comparison of literaturological data to ours (table 2) 
regarding the host plants, properties in sap and morphology 
of the maize mosaic virus resulted in establishing the fact 
that the virus isolated in the Ukraine is identical to that 
described in Europe (maize mosaic virus) and in the US (maize 
dwarf mosaic virus) as well as to the maize mosaic virus 
which is common in the Krasnodar region. 
(7) 
