Acta Botanica Croatica, Vol. 48 No. 1, 1989.
Original scientific paper
Ultrastructural Peculiarities of Turnip Mosaic Virus (Massive) Inclusions in Two Host Species
Zlata Štefanac
; Hrvatska
Mercedes Wrischer
; Hrvatska
Abstract
Massive inclusion bodies, appearing as accumulations of needles in living cells of Brassica rapa var. rapa and as granular x-bodies in those of Petunia hybrida, induced by isolate showing properties of the typical strain of turnip mosaic virus (TuMV) were studied in ultrathin sections. The massive inclusions from B. rapa consisted mainly of cylindrical inclusions and virus particles; voluminous cylindrical inclusions conformed to those of Edwardson’s subdivision-III induced by most TuMV strains in cruciferous hosts though short curved laminated aggregates specific of subdivision-IV cylindrical inclusions were also present. The x-bodies from P. hybrida, in addition to relatively delicate cylindrical inclusions of the both subdivisions and different very active cell organells, contained abundant crystal-containing peroxisomes from which their light microscopic granular structure primarily derived. Observed were also some other cytophatic peculiarities. The host-specific smaller dimensions of cylindrical inclusions in P. hybrida in comparison to those present in B. rapa are discussed.
Keywords
Hrčak ID:
159500
URI
Publication date:
31.12.1989.
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