Features of the genome
- Non-genomic nucleic acid
found in the virions; is subgenomic mRNA and host genomic RNA.
Sub-genomic mRNA found in infected cells.
Features of proteins
- Virion protein(s) two;
Mr of the larger 26500; protein of unknown function; about 1 copy per
virion. Mr of 2nd largest 17500; coat protein. Method of preparation:
Fraenkel-Conrat (1957); Collmer et al. (1983). Amino acid sequence:
Goelet et al., (1982).
Virus-coded non-virion proteins identified by genomic sequence analysis; four proteins found. Mr of the largest 183000; possibly a replicase protein. Mr of 2nd largest 126000; possibly a helicase protein. Mr of 3rd 54000. Mr of 4th 30000.
Replication
- Genome replicates possibly on membranous
structures in the cytoplasm: the protein synthesized by cytoplasmic ribosomes,
the assembly site for virions not known. Coat protein mRNA translated in
the cytoplasm. Replication does not depend on a helper virus.
Cytopathology
- Virions found in all parts of the host
plant; in cytoplasm and in nuclei; and possibly chloroplasts. Inclusions present
in infected cells; are crystals in the cytoplasm and amorphous X-bodies; they
contain virions. Other cellular changes: chloroplasts disrupted in systemic
infections.
Taxonomy and relationships
- Tobamovirus (the type
species)
Virus(es) with serologically related virions
-
All species of the genus related to different extents (Van
Regenmortel, 1970).
Comments and References
References
- Allard, H.A. (1914). Bull. U.S. Dep. Agric. 40: 33 pp.
- Asselin, A. and Zaitlin, M. (1978). Virology 91: 173.
- Butler, P.J.G. (1984). J. gen. Virol. 65: 253.
- Cheo, P.C. and Gerard, J.S. (1971). Phytopathology 61: 1010.
- Clark, M.F. and Bar-Joseph, M. (1984). Methods in Virol. VII, p. 51.
- Collmer, C.H., Vogt, V.M. and Zaitlin, M. (1983). Virology 126: 429.
- Fraenkel-Conrat, H. (1957). Virology 4: 1.
- Garcia-Arenal, F., Palukaitis, F. and Zaitlin, M. (1984). Virology 132: 131.
- Gibbs, A.J. (1977). CMI/AAB Descr. Pl. Viruses No. 184, 6 pp.
- Goelet, P., Lomonossoff, G.P., Butler, P.J.G., Akam, M.E., Gait, M.J. and Karn, J. (1982). Proc. Natl. Acad. Sci., U.S.A. 79: 5818.
- Gooding, J.V. and Hebert, T.T. (1967). Phytopathology 57: 1285.
- Haseloff, J., Goelet, P., Zimmern, D., Ahlquist, P., Dasgupta, R. and Kaesberg, P. (1984). Proc. Natl. Acad. Sci., U.S.A. 81: 4358.
- Hills, J.G., Plaskitt, K.A., Young, M.D., Dunigan, D.D., Watts, J.W., Wilson, T.M.A. and Zaitlin, M. (1987). Virology 161: 488.
- Hirth, L. and Richards, K.E. (1981). Adv. Virus Res. 26: 145.
- Holmes, F.O. (1946). Phytopathology 36: 643.
- Iwanovski, D. (1892). Izv. imp. Akad. Nauk. 35: 67.
- Mandeles, S. and Bruening, G. (1968). Biochem. Prep. 12: 111.
- Mayer, A. (1886). Landw. VersStnen 32: 451.
- Milne, R.G. (1984). Methods in Virol. VII, p. 88.
- Rezaian, M.A., Williams, R.H.V., Gordon, K.H.J., Gould, A.R. and Symons, R.H. (1984). Eur. J. Biochem. 143: 277.
- Stanley, W.M. (1935). Science 81: 644.
- Tsugita, A., Gish, D.T., Yopung, J., Fraenkel-Conrat, H., Knight, C.A. and Stanley, W.M. (1960). Proc. Natl. Acad. Sci. U.S.A. 46: 1463.
- Van Regenmortel, M.H.V. (1970). Virology 31: 467.
- Van Regenmortel, M.H.V. (1981). In: Handbook of Plant Virus Infections and Comparative Diagnosis, p. 541; ed. E. Kurstak. Elsevier/North Holland Biomedical Press, Amsterdam.
- Zaitlin, M.
and Israel, H.W. (1975). CMI/AAB Descr. Pl. Viruses No. 151, 5 pp.
Illustrations
- Electron micrograph. from Botany online
Cite this publication as:
Brunt, A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., Watson, L. and Zurcher, E.J. (eds.)
(1996 onwards).
`Plant Viruses Online: Descriptions and Lists from the VIDE Database.
Version: 20th August 1996.' URL
http://biology.anu.edu.au/Groups/MES/vide/
Dallwitz (1980)
and
Dallwitz, Paine and Zurcher (1993)
should also be cited.
Please send comments, corrections and suggestions to:
vide-manager@biology.anu.edu.au
Plant viruses Online
(University of Idaho)
