57.0.1.0.073 Watermelon mosaic virus2
First... to learn the nature of things
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NATURAM PRIMUM COGNOSCERE R
[Home] [Index Virum ] [ICTVdB Index] [ Character List ] [ Interactive Key ] [ Data Submission] [©] Description generated automatically from DELTA-format data including sections links in Table of Contents. Description may not cover all sections listed and therefore some links may not be functional at present. ICTVdB version 2 (1995-1999). The taxonomy of version 2 is based on the 6th ICTV Report.
57.0.1.0.073 Watermelon mosaic virus2 Table of Contents Taxonomy Original Source and History of Virus Virion Properties Morphology Physicochemical and Physical Properties Nucleic Acid Proteins Lipids Carbohydrates Genome Organization and Replication Infectivity Replication Function of Helper and Satellite Viruses Cytopathology Antigenic Properties Serological Relationships Diagnosis Biological Properties Symptoms and Host Range Transmission Geographic Distribution Ecology and Control Diagnostic and Methods Taxonomic Structure General Comments References Data sources and Contributors Related Databases Additional Data Sources and Teaching aids
Taxonomy Virus Code. 57.0.1.0.073. Virus Accession number 57010073. Synonym(s): marrow mosaic virus (Raychaudhuri and Varma, 1975; Varma, 1988), melon mosaic virus (Iwaki et al., 1984; Komuro, 1962), watermelon mosaic virus. Approved acronym: WMV-2. Virus infects plants. Description is on taxonomic level of species. Virus is an approved species in the genus. Virus belongs to
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the genus Potyvirus (VC 57.0.1. ); family Potyviridae (VC 57. ). Virus first reported in Citrullus lanatus. Reference(s): Webb et al. (1965).
Properties of Virion Morphology Virions not enveloped. Nucleocapsids filamentous; usually flexuous; 730-765 nm long. Axial canal obscure. Basic helix obscure. Physicochemical an Physical Properties Buoyant density 1.32 g cm-3 in CsCl. One sedimenting component in purified preparations. Sedimentation coefficient 150 S. TIP: 55-65 °C. LIV: 10-50 days. DEP: log10 minus 3-5. Nucleic Acid Virions contain 5 % nucleic acid. Virions contain one molecule of linear single stranded RNA. Sequence database accession code(s): D00535 Em(40)_vi:WMVCOAT Gb(84)_vi:WMVCOAT Watermelon mosaic virus 2 coat protein gene. 3/91 1,157bp. D00592 Em(40)_vi:MTWCP Watermelon mosaic virus 2 49kda protease, nuclear inclusion protein and coat protein genes. 3 D13913 Em(40)_vi:WMVCP Gb(84)_vi:WMVCP Watermelon mosaic virus 2 49kda protease, nuclear inclusion protein and coat protein genes. 1 L22907 Em(40)_vi:WMVCOATA Gb(84)_vi:WMVCOATA Watermelon mosaic virus 2 coat protein gene, complete cds. 5/94 1,656bp. 4 sequences. NCBI Taxon ID: 12231. Genomic nucleic acid isolated by Purcifull et al. (1984). Proteins Virions contain 95 % protein. One structural virion protein found. Protein size 34000 Da. Virus-coded nonstructural proteins identified by genomic sequence analysis (Purcifull et al. (1984)). Seven non-structural proteins found. Protein size of the largest 58000 Da. Protein size of 2nd largest 51000 Da. Helper component. Protein size of 3rd 50000 Da. Protein size of 4th 69000 Da. Cylindrical inclusions. Protein size of 5th and smaller 49000 Da, or 54000 Da, or 34000 Da, or 69000 Da. Protease, polymerase, coat protein, cylindrical inclusions. Cytopathology. Virions found in mesophyll and epidermis; in cytoplasm. Inclusions present in infected cells. Inclusions are unusual in shape. Scrolls and laminated aggregates (Edwardson's Type III inclusions) in the cytoplasm and thin plates, of unknown nature, in the nucleus. They do not contain virions and they contain virions (in cytoplasmic aggregates associated with membranes).
Antigenic Properties Serological Relationships Virus(es) with serologically related virions: soybean mosaic and blackeye cowpea mosaic viruses, but
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distantly.
Biological Properties Symptoms and Host Range Host of virus belongs to the Domain Eucarya. Host of virus belongs to the Kingdom Plantae. Natural Host Range and Symptoms
Symptoms persist. Cucurbita pepo, Cucumis melo, C. sativus, Citrullus lanatus and some legumes - mosaic, mottling, leaf shape malformation. Experimental Host Range and Symptoms
Many (>9) families susceptible. Diagnostic, Propagational and Assay Host Range
Diagnostic host: susceptible host species and symptoms Chenopodium amaranticolor - chlorotic local lesions; not systemic. Cucurbita pepo - systemic mosaic and occasional leaf malformation. Pisum sativum cv. Alaska - necrotic local lesions; systemic mottling and necrosis. Nicotiana benthamiana - systemic mosaic. Diagnostic host: insusceptible host species Pisum sativum cv. Little Marvel, Nicotiana glutinosa. Maintenance and propagation host species: Cucurbita pepo cvs Small Sugar, Zucchini, Nicotiana benthamiana. Assay hosts (Local lesions or Whole plants) Abelmoschus esculentus, Chenopodium amaranticolor, C. quinoa, Lavatera trimestris (L). Susceptible Hosts
Experimentally infected species susceptible to virus: Abelmoschus esculentus, or Amaranthus caudatus, or Astragalus sinicus, or Atriplex hortensis, or Capsella bursa-pastoris, or Cassia occidentalis, or Catharanthus roseus, or Celosia argentea, or Chenopodium album, or Chenopodium amaranticolor, or Chenopodium foetidum, or Chenopodium foliosum, or Chenopodium hybridum, or Chenopodium murale, or Chenopodium quinoa, or Cichorium endiva, or Citrullus lanatus, or Coriandrum sativum, or Crotalaria spectabilis, or Cucumis melo, or Cucumis metuliferus, or Cucumis sativus, or Cucurbita maxima, or Cucurbita moschata, or Cucurbita okeechobeensis, or Cucurbita pepo, or Cyamopsis tetragonoloba, or Datura stramonium, or Euphorbia marginata, or Glycine max, or Gomphrena globosa, or Ipomoea nil, or Lathyrus odoratus, or Lavatera trimestris, or Luffa acutangula, or Lupinus albus, or Lupinus angustifolius, or Macroptilium lathyroides, or Macrotyloma uniflorum, or Medicago hispida, or Medicago sativa, or Melilotus albus, or Melilotus officinalis, or Nicotiana benthamiana, or Nicotiana clevelandii, or Nicotiana glutinosa, or Nicotiana megalosiphon, or Nicotiana tabacum, or Phaseolus vulgaris, or Pisum sativum, or Senecio vulgaris, or Sesamum indicum, or Sonchus oleraceus, or Spinacia oleracea, or Tetragonia tetragonioides, or Torenia fournieri, or Trifolium incarnatum, or Trifolium pratense, or Valeriana officinalis, or Vicia faba, or Vicia sativa, or Vigna unguiculata, or Vigna unguiculata ssp. cylindrica, or
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Zinnia elegans. Insusceptible Hosts
Species inoculated with virus, but tested not to be susceptible: Beta macrocarpa, or Beta vulgaris, or Capsicum annuum, or Cheiranthus cheiri, or Nicotiana glutinosa, or Ocimum basilicum, or Petunia × hybrida, or Pisum sativum (cv. Little Marvel), or Tropaeolum majus, or Vigna angularis. Families containing susceptible hosts: Amaranthaceae (3/3), or Apocynaceae (1/1), or Chenopodiaceae (9/11), or Compositae (4/4), or Convolvulaceae (1/1), or Cruciferae (1/2), or Cucurbitaceae (9/9), or Euphorbiaceae (1/1), or Leguminosae-Caesalpinioideae (1/1), or Leguminosae-Papilionoideae (21 /22), or Malvaceae (2/2), or Pedaliaceae (1/1), or Scrophulariaceae (1/1), or Solanaceae (6/8), or Tetragoniaceae (1/1), or Umbelliferae (1/1), or Valerianaceae (1/1). Families containing insusceptible hosts: Chenopodiaceae (2/11), or Cruciferae (1/2), or Labiatae (1/1), or Leguminosae-Papilionoideae (2/22), or Solanaceae (3/8), or Tropaeolaceae (1/1). Sources of host-range data: Edwardson (1974); Horváth et al. (1975); Greber (1978); Hampton et al. (1978); Horváth (1979); Lecoq et al. (1981); Edwardson and Christie (1986). Transmission Transmitted by a vector. Virus transmitted by mechanical inoculation; not transmitted by seed. Transmitted by an insect; Myzus persicae, Aphis craccivora; at least 29 species of aphids transmit watermelon mosaic virus 2 (Edwardson and Christie, 1986); Aphididae. Geographic Distribution Probably distributed world-wide. Diagnostic and Methods Leaf sap contains few virions. Method: Purcifull et al. (1979).
Taxonomic Structure Taxonomic structure of the species. Strains: soybean mosaic virus (Frenkel et al., 1989; Yu et al., 1989; and D.D. Shukla, personal communication), indeed it is proposed that all are a single species and should be called soybean mosaic virus.
References Broderode, F.Th., Koper-Zwarthoff, C.E. and Bol, J.F. (1980). Nucl. Acids Res. 8: 2213: Edwardson, J.R. (1974). Fla Agric. Exp. Stn Monog. No. 5, p. 131. Edwardson, J.R. and Christie, R.G. (1986). Fla Agric. Exp. Stn Monog. No. 14, p. 454. Frenkel, M.J., Ward, CW and Shukla, D.D. (1989). J. gen. Virol. 70: 2775. Greber, R.S. (1978). Aust. J. agric. Res. 29: 1235. Hampton, R., Beczner, L., Hagedorn, D., Bos, L., Inouye, T., Barnett, O.W., Musil, M. and Meiners, J.
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(1978). Phytopathology 68: 989. Horváth, J. (1979). Acta Phytop. Acad. Sci. Hung. 14: 157. Horváth, J., Juretic, N., Besada, W.H. and Kuroli, G. (1975). Acta Phytopath. Acad. Sci. Hung. 10: 93. Iwaki, M., Honda, Y., Hanada, K., Tochihara, H., Yonaha, T., Hokama, K. and Yokoyama, T. (1984). Plant Dis. 68: 1006. Komuro, Y. (1962). Ann. Phytopath. Soc. Japan 27: 31. Lecoq, H., Pitrat, M. and Clement, M. (1981). Agronomie 1: 827. Milne, K.S. and Grogan, R.G. (1969). Phytopathology 59: 809. Milne, K.S., Grogan, R.G. and Kimble, K.A. (1969). Phytopathology 59: 819. Purcifull, D.E. and Hiebert, E. (1979). Phytopathology 69: 112. Purcifull, D., Hiebert, E. and Edwardson, J.R. (1984). CMI/AAB Descr. Pl. Viruses No. 293, 7 pp. Raychaudhuri, M. and Varma, A (1975). Indian J. Ent. 37: 247. Thomas, W. (1971). N.Z. Jl agric. Res. 14: 235. Van Regenmortel, M.H.V. (1971). CMI/AAB Descr. Pl. Viruses No. 63, 4 pp. Varma, A (1988). In: The Plant Viruses Vol. 4, The Filamentous Plant Viruses, p. 371; ed. R.G. Milne. Plenum Press, New York. Webb, R.E. and Scott, H.A. (1965). Phytopathology 55: 895. Yu, M., Frenkel, M.J., McKern, N.M., Shukla, D.D., Strike, P.M. and Ward, C.M. (1989). Arch. Virol. 105: 55.
Data sources and contributors. Presented data have been collated for the plant virus database VIDEdB by D. Purcifull, 1981.
Description generated automatically from DELTA-format data.
Author of this webpage: C. Büchen-Osmond Developer of the software to create this webpage: M. J. Dallwitz ICTV and DELTA related References Note:The ICTV database is under development and is subject to changes and corrections. If you have questions about this project please contact us. Your comments and help will be appreciated. © 1995, 1996,1997,1998 Cornelia Büchen-Osmond. All rights reserved.
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Created: April 1995 Last updated: 8 April 1998.
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