Elektronskomikroskopski dokaz virusa pjegavosti i venuća rajčice u Jugoslaviji

Abstract

In ultrathin sections of spontaneously infected tobacco plants which schowed symptoms characteristic of tomato spotted wilt virus (TSWV) the characteristic particles of about 80 nm in diameter were found (Fig. 1). The particles were enveloped with a membrane and were in clusters placed in the cisternae of the endoplasmic reticulum. The characteristic form of virus particles confirms that TSWV is indeed spread in Yugoslavia. Earlier reports on the occurrence of this virus in Yugoslavia were based mainly on symptomatological investigations only.Na ultratankim presjecima kroz tkivo duhana koji je pokazivao simptome karakteristične za virus pjegavosti i venuća rajčice (tomato spotted wilt virus; TSWV) našli smo izometrične virusne čestice promjera oko 80 nm. Obično su po tri do četiri čestice činile nakupine koje su bile smještene u cisternama endoplazmatskog retikuluma (vidi sliku). Svaka pojedina čestica bila je obavijena membranom. Budući da je takav tip čestica karakterističan za TSWV, zaključili smo da je taj virus stvarno raširen u Jugoslaviji. O raširenosti TSWV u našoj zemlji saopćili su već ranije drugi autori (Mickovski 1969; Todorovski i Mickovski 1970; Bužančić and Panjan 1973). Međutim, njihova se identifikacija zasniva gotovo isključivo na simptomatološkim istraživanjima

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