An Ultrastructural Study of the Localization of Sowbane Mosaic Virus

Lombardo, Giuliana; Simonetta, M.; Bassi, Maria

doi:10.1080/00087114.1971.10796441

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…When RYMV particles are not stored in vacuoles but appear in large quantities in the cytoplasm, then degenerative changes occur within chloroplasts in mesophyll cells [ 154 ]. Other cellular changes include proliferation of tonoplast membranes bulging into the vacuole in SoMV-infected [ 180 ] or CfMV-infected [ 181 ] host cells.…”

Section: Localization Of Virions In Cells and Tissuesmentioning

confidence: 99%

“…A high stability of virions is required for translocation via xylem because of the action of proteases during programmed cell death of tracheary elements [ 183 , 184 ]. Also SoMV, BSSV, and SMAMV have been observed rather in xylem than in phloem [ 34 , 180 , 185 , 186 ]. However, CfMV, SBMV, and SCPMV particles have been found predominantly in phloem [ 179 , 187 , 188 , 189 ].…”

Section: Localization Of Virions In Cells and Tissuesmentioning

confidence: 99%

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Overview on Sobemoviruses and a Proposal for the Creation of the Family Sobemoviridae

Sõmera

Sarmiento

Truve

2015

Viruses

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The genus Sobemovirus, unassigned to any family, consists of viruses with single-stranded plus-oriented single-component RNA genomes and small icosahedral particles. Currently, 14 species within the genus have been recognized by the International Committee on Taxonomy of Viruses (ICTV) but several new species are to be recognized in the near future. Sobemovirus genomes are compact with a conserved structure of open reading frames and with short untranslated regions. Several sobemoviruses are important pathogens. Moreover, over the last decade sobemoviruses have become important model systems to study plant virus evolution. In the current review we give an overview of the structure and expression of sobemovirus genomes, processing and functions of individual proteins, particle structure, pathology and phylogenesis of sobemoviruses as well as of satellite RNAs present together with these viruses. Based on a phylogenetic analysis we propose that a new family Sobemoviridae should be recognized including the genera Sobemovirus and Polemovirus. Finally, we outline the future perspectives and needs for the research focusing on sobemoviruses.

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Section: Localization Of Virions In Cells and Tissuesmentioning

confidence: 99%

Section: Localization Of Virions In Cells and Tissuesmentioning

confidence: 99%

Overview on Sobemoviruses and a Proposal for the Creation of the Family Sobemoviridae

Sõmera

Sarmiento

Truve

2015

Viruses

View full text Add to dashboard Cite

show abstract

“…We have been unable to observe PRV particles in phloem cells, but the location of PRV particles in xylem cells IS certain. Virus particles have seldom been detected in the xylem of other plants (CHAMBERS and FRANCKI 1966, Russo, MARTELLI and QUACQUARELLI 1967, ESAU 1968, PALIWAL 1970, LOMBARDO, SIMONETTA and BASSI 1971, but alterations of the xylem elements were never observed. It seems that, in the case of PRV infection, the cell wall of the xylem cells can not differentiate regularly and/or is dissolved in fibrillar material.…”

Section: Discussionmentioning

confidence: 99%

“…Since the isometric particles observed in ultrathin sections of infected peanut leaves were similar in morphology and size to the PRV virions seen in crude extracts and purified preparations (BENIGNO and FAVALI-HEDAYAI 1976), we concluded that they were PRV virions. As regards the modifications observed in the cellular organelles, some of them (rupture of the tonoplast, vacuolation of cytoplasm, lobated nuclei and light inclusions bodies probably lipid droplets) are found commonly in other virus infections and represent a host response to virus (GEROLA, BASSI andBELLI 1965, LOMBARDO, SIMONETTA andBASSI 1971).…”

Section: Discussionmentioning

confidence: 99%