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00.056.0.01.006. Commelina virus X

Cite this publication as: ICTVdB Management (2006). 00.056.0.01.006. Commelina virus X. 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 Kingdom (probably originated from Mexico or South America).

Host of Isolate and Habitat Details
Source of isolate: Commelina diffusa.

Natural host and symptoms
Commelina diffusa — necrotic streaks, malformation.

Reference to Isolation Report
Stone (1980).

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: 00.056.0.01.006. Virus accession number: 56001006. Obsolete virus code: 56.0.1.0.006; superceded accession number: 56010006.

Name, Synonyms and Lineage

ICTV approved acronym: ComVX. 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 550 nm. Axial canal is indistinct. Basic helix is obscure.

Electron microscopic preparation and references: Reference for electron microscopic methods: Stone (1980).

Nucleic Acid

The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered.

Proteins

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

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 cactus X, hydrangea ringspot, lily X, narcissus mosaic, nerine X and papaya mosaic viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Transmission and Vector Relationships

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

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 Amaranthaceae, Chenopodiaceae, Commelinaceae, Leguminosae-Papilionoideae, Solanaceae, Tetragoniaceae. The following species were susceptible to experimental virus infection: Chenopodium capitatum, Chenopodium murale, Chenopodium quinoa, Commelina diffusa, Datura stramonium, Glycine max, Gomphrena globosa, Lycopersicon esculentum, Nicotiana clevelandii, Nicotiana debneyi, Nicotiana glutinosa, Nicotiana megalosiphon, Nicotiana tabacum, Tetragonia tetragonioides, Trifolium incarnatum.

Host:
Experimentally infected hosts mainly show symptoms of symptomless or chlorotic or necrotic local lesions, symptomless infection.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Chenopodiaceae, Labiatae, or Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Chenopodium amaranticolor, Ocimum basilicum, Petunia x hybrida, Phaseolus vulgaris, Vicia faba, Vigna unguiculata.

Diagnostic Hosts

Diagnostic host species and symptoms:

Datura stramonium, Nicotiana clevelandii, N. debneyi, N. glutinosa, Trifolium incarnatum — symptomless local and systemic infection.

Chenopodium quinoa, C. murale, Tetragonia tetragonioides — chlorotic or necrotic local lesions.

Nicotiana tabacum — symptomless local infection. Diagnostic host: insusceptible host species Chenopodium amaranticolor, Petunia x hybrida, Phaseolus vulgaris, Vicia faba, Vigna unguiculata.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Nicotiana clevelandii.

Assay Hosts

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

References to host data: Stone (1980).

References

Stone, O.M. (1980). Acta Hort. 110: 59.

The following generic references are cited in the most recent ICTV Report.
VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 242 by A.A. Brunt, 1987.



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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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