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Descriptions are generated automatically from the ICTVdB database including links. Some descriptions are only very basic and links may point to documents that are not yet published on the Web.

00.049.0.03. Alphacryptovirus

Cite this publication as: ICTVdB Management (2006). 00.049.0.03. Alphacryptovirus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA

Cite this site as: ICTVdB - The Universal Virus Database, version 4. http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/

Table of Contents

Classification

This is a description of a plant virus at the genus level.

ICTVdB Virus Code: 00.049.0.03. Virus accession number: 049003GE. Obsolete virus code: 49.0.3.; superceded accession number: 49030000.
NCBI Taxon Identifier NCBI Taxonomy ID: 39753.

Name, Synonyms and Lineage

Virus is of the family 00.049. Partitiviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The nucleocapsid is isometric and has a diameter of 28-29.85-30 nm. Capsids appear round, or hexagonal in outline. The capsomer arrangement is clearly visible, or is not obvious.

Electron microscopic preparation and references: Virus preparation contains few virions.

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.34-1.39 g cm-3. There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 118-119.5-120 S20w.

Nucleic Acid

The Mr of the genome constitutes 25% of the virion by weight. The genome is segmented; bipartite, segements are distributed among 2 particle types, or multipartite and segments are distributed over several particles of varying size, depending on the length of the genome enclosed. The genome consists of three segments of linear, double-stranded RNA. The complete genome is 2990-3986-7100 nucleotides long. RNA-1 is sequenced, and complete sequence is about 1300-2015-3900 nucleotides long. RNA-2 is sabout 1250-1729-3200 nucleotides long, and RNA-3 is about 1210-1330-1450 nucleotides long. The multipartite genome is possible packaged in one particle, but it is not known whether they are packaged together or separately.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins. Virions consist of 1 structural protein(s), or 2 structural protein(s).

Lipids

Lipids are not reported.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms, Class Magnoliopsida (Dicotyledonae), or Liliopsida (Monocotyledonae).

Severity and Occurrence of Disease

Host: Infection is apparent, or not apparent. Signs and symptoms disappear soon after infection.

Transmission and Vector Relationships

Virus is not transmitted by a vector. Virus is transmitted by mechanical inoculation, or not transmitted by mechanical inoculation; not transmitted by grafting; not transmitted by contact between hosts; transmitted by seeds; transmitted by pollen to the seed.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in many families, few families. Susceptible host species are found in the Family Amaryllidaceae, Caryophyllaceae, Chenopodiaceae, Compositae, Cruciferae, Euphorbiaceae, Gramineae, Lauraceae, Leguminosae-Papilionoideae, Polygonaceae, Solanaceae, Umbelliferae. The following species were susceptible to experimental virus infection: Amaryllis, Beta vulgaris, Beta vulgaris ssp. cicla, Brassica campestris ssp. pekinensis var. dentata, Brassica rapa var. laciniifolia, Capsicum annuum, Capsicum frutescens, Chrysanthemum coronarium, Dactylis glomerata, Daucus carota, Dianthus caryophyllus, Euphorbia pulcherrima, Festuca pratensis, Lolium multiflorum, Lolium multiflorum x L. perenne, Lolium perenne, Medicago lupulina, Medicago sativa, Persea americana, Raphanus sativus, Rheum rhaponticum, Sinapis alba, Spinacia oleracea, Trifolium repens, Vicia faba, Vigna unguiculata.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Chenopodiaceae, Cruciferae, Cucurbitaceae, Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Brassica campestris ssp. rapa, Chenopodium amaranticolor, Chenopodium capitatum, Chenopodium foetidum, Chenopodium hybridum, Chenopodium murale, Chenopodium quinoa, Cucumis sativus, Gomphrena globosa, Nicotiana clevelandii, Nicotiana glutinosa, Nicotiana tabacum, Petunia x hybrida, Vigna unguiculata ssp. sesquipedalis .

Histopathology: Virions are found in the cytoplasm, or nucleus.

Cytopathology: Inclusions are present in infected cells, or not present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are viroplasma. Inclusions contain mature virions.

Geographical Distribution

The virus is probably distributed worldwide. The virus spreads in Eurasia, or the Middle East. The virus occurs in Australia, or Germany, or Italy, or the United Kingdom.

Taxonomic Structure of the Genus

Type species 00.049.0.03.001. White clover cryptic virus 1 .

Species in the Genus

List of Species in the Genus.

Tentative Species in the Genus

Tentative Species in the Genus.

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Ghabrial SA, Bozarth RF, Buck KW, Yamashita S, Martelli GP, Milne RG.

References

The following generic references are cited in the most recent ICTV Report.

PubMed References.

Images

Taxon images: • EM from IACR Rothamsted.



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DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia. ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses by Dr Cornelia Büchen-Osmond is written in DELTA. The virus descriptions in ICTVdB are coded by, or using data from experts in the field of virology or members ICTV. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations are automatically generated and formatted for display on the Web from the descriptions in DELTA-format. The description has been generated automatically from DELTA files. DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia.

ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses (ICTV) by Dr Cornelia Büchen-Osmond, is written in DELTA. The virus descriptions in ICTVdB are coded by ICTV members and experts, or by the ICTVdB Management using data provided by the experts, the literature or the latest ICTV Report. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations from the encoded descriptions are automatically generated and formatted for display on the Web.

Developer of the DELTA software: M. J. Dallwitz, T. Paine and E. Zurcher

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Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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