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00.057.0.03.004. Oat mosaic virus

Cite this publication as: ICTVdB Management (2006). 00.057.0.03.004. Oat mosaic virus. 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

Isolate Description

Location: the United States of America.

Host of Isolate and Habitat Details
Source of isolate: Avena sativa.

Natural host and symptoms
Avena ssp. — mottling.

Reference to Isolation Report
Atkinson (1945, McKinney (1946).

Classification

This is a description of a plant virus at the species level with data on all virus properties from morphology to genome, replication, antigenicity and biological properties.

ICTVdB Virus Code: 00.057.0.03.004. Virus accession number: 57003004. Obsolete virus code: 57.0.3.0.004; superceded accession number: 57030004.
NCBI Taxon Identifier NCBI Taxonomy ID: 157837.

Name, Synonyms and Lineage

Synonym(s): soil-borne oat mosaic virus (Macfarlane et al. 1968). ICTV approved acronym: OMV. Virus is an ICTV approved species of the genus 00.057.0.03. Bymovirus; 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. The capsid is filamentous, flexuous with a clear modal length with a length of 600-750 nm and a width of 12-14 nm. Axial canal is indistinct. Basic helix is obscure.

Electron microscopic preparation and references: Virus preparation contains few virions. Reference for electron microscopic methods: Usugi (1981).

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.3 g cm-3. The thermal inactivation point (TIP) is at 44-46°C. The longevity in vitro (LIV) is 1-2 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 1-2 (using the leaf rubbing method), or 2-5 (using the air brush method). The infectivity is not changed by treatment with ether.

Nucleic Acid

The genome is segmented; bipartite, segements are distributed among 2 particle types of linear, positive-sense, single-stranded RNA. The complete genome is 12000 nucleotides long. Genome is sequenced, complete sequence is about 8000 nucleotides long, is sequenced, but only an estimate is available, complete sequence is c. 4000 nucleotides long. The 3'-terminus has a poly (A) tract. The multipartite genome is divided among more than one type of particle and the segments are distributed between 2 different types of particles. Reference to nucleotide sequence isolation method: nucleic acid is extracted by adding 2% SDS to purified preparation.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Structural Proteins: Reference to method of preparation: Usugi (1981).

Lipids

Lipids are not reported.

Diagnostics and Reference Collections

The best tests for diagnosis are sap inoculation tests; only Avena species are susceptible, and develop mottling symptoms below 15°C.

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.

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation; not transmitted by seeds.

Vector Transmission:
Virus is transmitted by fungi; of the order Plasmodiophorales. The principal natural vector(s) are Polymyxa graminis.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in several families. Susceptible host species are found in the Family Gramineae. The following species were susceptible to experimental virus infection: Avena byzantina, Avena sativa, Avena strigosa, Triticum aestivum.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Alliaceae, Amaranthaceae, Chenopodiaceae, Compositae, Cruciferae, Cucurbitaceae, Gramineae, or Leguminosae-Papilionoideae, Liliaceae, Malvaceae (2 /2), or Polemoniaceae, Scrophulariaceae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Abelmoschus esculentus, Allium cepa, Amaranthus caudatus, Antirrhinum majus, Beta vulgaris, Brassica oleracea var. botrytis, Capsicum annuum, Carthamus tinctorius, Chenopodium album, Chenopodium amaranticolor, Chenopodium hybridum, Chrysanthemum morifolium, Cicer arietinum, Cucumis melo, Cucumis sativus, Cucurbita pepo, Datura stramonium, Glycine max, Gomphrena globosa, Gossypium hirsutum, Hordeum vulgare, Lactuca sativa, Lathyrus odoratus, Lolium, Lycopersicon esculentum, Macroptilium lathyroides, Medicago sativa, Nicotiana glutinosa, Nicotiana sylvestris, Nicotiana tabacum, Oryza sativa, Petunia x hybrida, Phaseolus acutifolius, Phaseolus lunatus, Phaseolus vulgaris, Phlox drummondii, Physalis peruviana, Pisum sativum, Raphanus sativus, Secale cereale, Solanum melongena, Solanum tuberosum, Spinacia oleracea, Trifolium incarnatum, Trifolium repens, Tulipa gesneriana, Vicia faba, Zea mays, Zinnia elegans.

Diagnostic Hosts

Diagnostic host species and symptoms:

Avena sativa — mottling, especially in the first leaves.

Diagnostic host: insusceptible host species Hordeum vulgare, Zea mays, Lolium ssp., Oryza sativa.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Avena sativa.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Avena sativa (W).

References to host data: McKinney (1946, Toler and Hebert (1963).

Histopathology: Virus can be best detected in all parts of the host plant. 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 pinwheels. Inclusions do not contain mature virions.

Geographical Distribution

The virus occurs in the United Kingdom and the United States of America.

Ecology, Epidemiology and Control

Studies reported by Toler and Hebert (1964, McKinney (1946).

List of Strains and Isolates in the Species

Apical mosaic strain and eyespot strain.

References

Atkinson, M. (1945). Pl. Dis. Reptr 29: 86.

Hebert, T.T. and Panizo, CH (1975). CMI/AAB Descr. Pl. Viruses No. 145, 4 pp.

Macfarlane, I., Jenkins, JEE. and Melville, S. (1968). Pl. Path. 17: 167.

McKinney, HH (1946). Phytopathology 36: 359.

Panizo, CH (1975). Ph.D. Thesis N. Carolina State University.

Toler, R.W. and Hebert, T.T. (1963). Pl. Dis. Reptr 47: 58.

Toler, R.W. and Hebert, T.T. (1964). Phytopathology 54: 428.

Usugi, T. (1981). Ann. Phytopath. Soc. Japan 47: 581.

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

PubMed References. A description of this taxon in VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 527 by T. Usugi, 1987. A description of the virus is found in DPV, a database for plant viruses developed by the Association of Applied Biologists (AAB), with the number 145.



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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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