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00.056.0.01.008. Foxtail mosaic virus

Cite this publication as: ICTVdB Management (2006). 00.056.0.01.008. Foxtail 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: Setaria italica and S. viridis.

Natural host and symptoms
Setaria italica, S. viridis — leaf mosaic.

Reference to Isolation Report
Paulsen and Sill (1969).

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: 00.056.0.01.008. Virus accession number: 56001008. Obsolete virus code: 56.0.1.0.008; superceded accession number: 56010008.
NCBI Taxon Identifier NCBI Taxonomy ID: 12179.

Name, Synonyms and Lineage

ICTV approved acronym: FoMV. Virus is an ICTV approved species of the genus 00.056.0.01. Potexvirus in the family 00.056. Flexiviridae.

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 length of 500 nm. Axial canal is indistinct. Pitch of helix is 3.5 nm.

Electron microscopic preparation and references: Reference for electron microscopic methods: Bancroft et al. (1979).

Physicochemical and Physical Properties

There are 2 sedimenting component(s) found in purified preparations. The sedimentation coefficient is of the fastest 144 S20w (probably dimers, of the other(s) are 122 S20w (monomers). A260/A280 ratio is 1.2. The thermal inactivation point (TIP) is at 70°C. The longevity in vitro (LIV) is 46 days (in sap), or 105 days (in buffered leaf extracts). Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 7.

Nucleic Acid

The Mr of the genome constitutes 7% of the virion by weight. The genome is monopartite, only one particle size is recovered of linear, positive-sense, single-stranded RNA. The complete genome is 6800 nucleotides long. Sequence is fully and partially sequenced, complete sequence is 6800 nucleotides long. Sequence has the accession number [M62730] Em(40)_vi:FXMCGA Gb(84)_vi:FXMCGA Foxtail mosaic virus, complete genome. 12/91 6,151bp. 1 sequence.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Proteins constitute about 93% of the particle weight.

The viral genome encodes structural proteins and non-structural proteins.

Structural Proteins: Reference to amino acid sequence or composition Short (1981).

Lipids

Lipids are not reported.

Transcription: The virus codes for 5 ORF(s).

Coding Strategy of Segment 1: Sequence has a gene block. Sequence has triple gene block sequence (TGB). Encodes proteins involved in cell to cell movement.

Antigenicity

The virus is serologically related to narcissus mosaic and viola mottle viruses. The virus does not show serological relationships to cactus X, clover yellow mosaic, papaya mosaic, potato X and white clover mosaic viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Class Magnoliopsida (Dicotyledonae)
Subclass CARYOPHYLLIDAE.

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

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

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in many families. Susceptible host species are found in the Family Amaranthaceae, Apocynaceae, Chenopodiaceae, Compositae, Cruciferae, Cucurbitaceae, Gramineae, Leguminosae-Papilionoideae, Scrophulariaceae, Solanaceae, Tetragoniaceae. The following species were susceptible to experimental virus infection: Avena sativa, Beta vulgaris, Brassica juncea, Bromus inermis, Catharanthus roseus, Chenopodium album, Chenopodium amaranticolor, Chenopodium ambrosioides, Chenopodium capitatum, Chenopodium foetidum, Chenopodium hybridum, Chenopodium murale, Chenopodium quinoa, Crotalaria spectabilis, Cucumis sativus, Cyamopsis tetragonoloba, Cynodon dactylon, Glycine max, Gomphrena globosa, Hordeum vulgare, Lagurus ovatus, Lophopyrum elongatum, Lycopersicon esculentum, Nicandra physalodes, Nicotiana clevelandii, Nicotiana megalosiphon, Nicotiana rustica, Nicotiana tabacum, Oryza sativa, Panicum capillare, Panicum maximum, Panicum miliaceum, Phalaris arundinacea, Phleum pratense, Physalis floridana, Pisum sativum, Poa pratensis, Secale cereale, Setaria italica, Setaria viridis, Sorghum bicolor, Spinacia oleracea, Tetragonia tetragonioides, Torenia fournieri, Triticum aestivum, Triticum durum, Vigna unguiculata, Zea mays, Zinnia elegans.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Gramineae. Species inoculated with virus that do not show signs of susceptibility: Arrhenatherum elatius, Lolium perenne, Sorghum halepense.

Diagnostic Hosts

Diagnostic host species and symptoms:

Gomphrena globosa, Pisum sativum — necrotic local lesions; not systemic.

Chenopodium amaranticolor, Nicotiana clevelandii, Tetragonia tetragonioides — necrotic local lesions; systemic mosaic.

Avena sativa, Hordeum vulgare, Triticum aestivum — systemic mosaic. Diagnostic host: insusceptible host species Arrhenatherum elatius, Lolium perenne, Sorghum halepense.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Avena sativa, Hordeum vulgare, Triticum aestivum.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium amaranticolor (L).

References to host data: Paulsen and Niblett (1977).

Histopathology: Virus can be best detected in leaves and mesophyll. Virions are found in the cytoplasm.

Geographical Distribution

The virus occurs in the United States of America.

References

Bancroft, JE, Abouhaidar, M. and Erickson, J.W. (1979). Virology 98: 121.

Paulsen, AQ. and Niblett, C.L. (1977). Phytopathology 67: 1346.

Paulsen, AQ. and Sill, W.H. (1969). Phytopathology 59: 1043.

Richardson, J.F., Tollin, P. and Bancroft, J.B. (1981). Virology 112: 34.

Short, M.N. (1981). Rep. John Innes Inst. 1980, p. 126.

Short, M.N. (1983). CMI/AAB Descr. Pl. Viruses No. 264, 3 pp.

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

PubMed References.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 343 by A.A. Brunt, 1991. 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 264.



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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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