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00.057.0.03. Bymovirus

Cite this publication as: ICTVdB Management (2006). 00.057.0.03. Bymovirus. 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: 00.057.0.03. Virus accession number: 057003GE. Obsolete virus code: 57.0.3.; superceded accession number: 57030000.
NCBI Taxon Identifier NCBI Taxonomy ID: 39731.

Name, Synonyms and Lineage

Synonym(s): Fungal-borne potyviruses. Virus is of the family 00.057. Potyviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid/nucleocapsid is elongated with helical symmetry. Virus preparations contain more than one particle component. The capsid is filamentous, flexuous with a clear modal length, or clear predominate lengths with a length of 500-600 nm; 200-300 nm; width of 12-15 nm. Axial canal is indistinct. Basic helix is obscure. Pitch of helix is 3.4 nm.

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

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.28-1.34 g cm-3. There are 1 sedimenting component(s) found in purified preparations, or 2 sedimenting component(s) found in purified preparations. A260/A280 ratio is 1.14. The thermal inactivation point (TIP) is at 44-51.25-65°C. The longevity in vitro (LIV) is 1-4.333-14 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 1, or 2-4, or 5. The infectivity is not changed by treatment with ether; retained when deproteinized with phenol or detergent.

Nucleic Acid

The Mr of the genome constitutes 5% of the virion by weight. The genome is segmented; bipartite, segements are distributed among 2 particle types of linear, positive-sense, single-stranded RNA. Minor species of non-genomic nucleic acid are not found in virions. The complete genome is 8500-10000 nucleotides long. Genome is sequenced, but only an estimate is available, complete sequence is 7632-7877-8000 nucleotides long.   Is fully sequenced, complete sequence is 3585-3861-4000 nucleotides long. The genome has a base ratio of 22.1 % guanine; 27.4 % adenine; 24 % cytosine; 26.5 % uracil. The 5'-end of the genome has a genome-linked protein (VPg). The 3'-terminus has a poly (A) tract. The multipartite genome segments are distributed between 2 different types of particles.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Proteins constitute about 95% of the particle weight.

The viral genome encodes structural proteins and non-structural proteins. Virions consist of 1 structural protein(s), or 2 structural protein(s), or 3 structural protein(s).

Non-Structural Proteins: Virus-coded non-structural proteins have been isolated and 1 non-structural protein(s) are found.

Lipids

Lipids are not reported.

Genome Organization and Replication

By itself, genomic nucleic acid is infectious.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Class Liliopsida (Monocotyledonae)
Subclass COMMELINIDAE; Order Poales.

Severity and Occurrence of Disease

Host: Signs and symptoms persist, or vary seasonally, or disappear soon after infection.

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation; not transmitted by grafting; not transmitted by contact between hosts; not transmitted by seeds; not transmitted by pollen.

Vector Transmission:
Virus is transmitted by fungi; of the order Plasmodiophorales.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in several families, few families. Susceptible host species are found in the Family Gramineae. The following species were susceptible to experimental virus infection: Aegilops kotschyi, Aegilops searsii, Aegilops speltoides, Avena byzantina, Avena sativa, Avena strigosa, Eremopyrum hirsutum, Hordeum vulgare, Lagurus ovatus, Oryza sativa, Secale cereale, Triticum aestivum, Triticum durum.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Alliaceae, Amaranthaceae, Chenopodiaceae, Compositae, Cruciferae, Cucurbitaceae, Gramineae, or Leguminosae-Papilionoideae, Liliaceae, Malvaceae, Polemoniaceae, or Scrophulariaceae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Abelmoschus esculentus, Agrostis tenuis, Allium cepa, Amaranthus caudatus, Anthoxanthum odoratum, Antirrhinum majus, Avena sativa, Beta vulgaris, Brassica oleracea var. botrytis, Bromus inermis, Bromus mollis, Capsicum annuum, Carthamus tinctorius, Chenopodium album, Chenopodium amaranticolor, Chenopodium hybridum, Chenopodium quinoa, Chrysanthemum morifolium, Cicer arietinum, Cucumis melo, Cucumis sativus, Cucurbita pepo, Dactylis glomerata, Datura stramonium, Echinochloa crus-galli, Elymus junceus, Elymus tsukushiensis var. transiens, Elytrigia repens, Festuca pratensis, Glycine max, Gomphrena globosa, Gossypium hirsutum, Hordeum vulgare, Lactuca sativa, Lathyrus odoratus, Lolium, Lolium multiflorum, Lolium perenne, Lolium temulentum, Lycopersicon esculentum, Macroptilium lathyroides, Medicago sativa, Nicotiana glutinosa, Nicotiana sylvestris, Nicotiana tabacum, Oryza sativa, Panicum maximum, Petunia x hybrida, Phalaris arundinacea, Phaseolus acutifolius, Phaseolus lunatus, Phaseolus vulgaris, Phlox drummondii, Physalis peruviana, Pisum sativum, Poa annua, Poa pratensis, Raphanus sativus, Secale cereale, Setaria viridis, Solanum melongena, Solanum tuberosum, Spinacia oleracea, Trifolium incarnatum, Trifolium repens, Triticum aestivum, Tulipa gesneriana, Vicia faba, Zea mays, Zinnia elegans.

Histopathology: Virions are found in the cytoplasm.

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are amorphous X-bodies, or membranous bodies, or pinwheels. Inclusions do not contain mature virions.

Geographical Distribution

The virus spreads in East Asia, or Eurasia. The virus occurs in Belgium, or Canada, or China, or France, or Germany, or Greece, or India, or Italy, or Japan, or Korea (North), or Korea (South), or the Netherlands, or the United Kingdom, or the United States of America.

Taxonomic Structure of the Genus

Type species 00.057.0.03.001. Barley yellow mosaic virus .

Species in the Genus

List of Species in the Genus.

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Barnett OW, Adam G, Brunt AA, Dijkstra J, Dougherty WG, Edwardson JR, Goldbach R, Hammond J, Hill JH, Jordan RL, Kashiwazaki S, Lommel SA, Makkouk K, Morales FJ, Ohki ST, Purcifull D, Shikata E, Shukla DD, Uyeda I.

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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