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Sponataneous Occurrence of Cucumber Mosaic Virus on Echinocystis lobata, Leycesteria formosa and Solanum melongena in Yugoslavia

Đorđe Mamula ; Hrvatska
Nada Pleše ; Hrvatska
Nikola Juretić ; Hrvatska

Puni tekst: engleski pdf 1.487 Kb

str. 34-0

preuzimanja: 199



Symptoms suggestive of virus infection have been observed on numerous Echinocystis lobata and Solanum melongena plants in the area of Zagreb. From those plants several isolates were recovered, i. e. El, E2, E3 (E. lobata), SI and S2 (S. melongena). Besides, a further isolate (LF) was obtained from a Leycesteria formosa plant, which was cultivated in Botanical Garden of Zagreb.
All the six isolates gave in 0.9% agarose gel a distinct positive serological reaction with antiserum to cucumber mosaic virus (CMV). This and some other properties of the isolates (test plant reaction, physical properties, etc.) led to the conclusion that the six isolates belonged to CMV. Isolates El, E2, E3 and LF caused necrotic lesions in inoculated leaves of Vigna sinensis. This was not found with isolates SI and S2. Thermal inactivation point of isolates El and SI was somewhat higher (60°—65° C) than in isolate LF (55°—60° C). According to symptoms in test plants the investigated isolates could be considered as similar to Bhargava’s spinach strain of CMV.
E. lobata, L. formosa and S. melongena are reported herewith as spontaneous hosts of CMV unrecorded so far in the region of Yugoslavia.

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