The ultrastructural appearance of cowpea mosaic virus in cowpea

Ultrastructure of Pea Leaf Cells Infected with Three Strains of Red Clover Mottle Virus

“…1 b). Intranuclear membranous structures, very similar to those observed in RCMV-infected tissue, have been found in nuclei in cells infected with CPMV (van der Scheer & Groenewegen, 1971;Langenberg & Schroeder, 1975). Interactions between the membranes of the nuclear inclusion and the nuclear envelope such as were found in CPMV-infected cells (Langenberg & Schroeder, 1975) were not seen in RCMV-infected cells.…”

“…The origin of the inclusions is not known, but it has been proposed that the vesicles in the similar inclusions induced by two other comoviruses, radish mosaic virus and CPMV, may have some connection with or emanate from dictyosomes (Stefanac & Ljubesic, 1971; van 0022-1317/82/0000-5008 $02.00 © 1982 SGM Short communications der Scheer & Groenewegen, 1971) or from the endoplasmic reticulum (Langenberg & Schroeder, 1975). Membrane synthesis is obviously stimulated during early stages of infection with RCMV but no association between dictyosomes and membranes of the vesicles was observed in our material; however, this was sampled at a late stage of infection.…”