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00.067.0.01.010. Turnip rosette virus

Cite this publication as: ICTVdB Management (2006). 00.067.0.01.010. Turnip rosette 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: Scotland; the United Kingdom.

Host of Isolate and Habitat Details
Source of isolate: Brassica campestris ssp. napus and ssp. rapa.

Natural host and symptoms
Brassica campestris ssp. napus — chlorotic vein-banding and severe stunting.

Brassica campestris ssp. rapa — necrosis of veins, leaf distortion and severe stunting ("rosetting").

Reference to Isolation Report
Blencowe and Broadbent, 1957.

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: 00.067.0.01.010. Virus accession number: 67001010. Obsolete virus code: 67.0.1.0.010; superceded accession number: 67010010.
NCBI Taxon Identifier NCBI Taxonomy ID: 218923.

Name, Synonyms and Lineage

ICTV approved acronym: TRoV. Virus is an ICTV approved species of the genus 00.067.0.01. Sobemovirus; not assigned to a family.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 28 nm.

Electron microscopic preparation and references: Reference for electron microscopic methods: Hollings and Stone (1969, 1973).

Physicochemical and Physical Properties

There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 112 S20w. A260/A280 ratio is 1.56. The thermal inactivation point (TIP) is at 90°C. The longevity in vitro (LIV) is more than 30 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 5-6.

Nucleic Acid

The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered. The genome has a base ratio of 25 % guanine; 26 % adenine; 22 % cytosine; 27 % uracil.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Lipids

Lipids are not reported.

Antigenicity

The virus does not show serological relationships to 27 viruses with isometric virions.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Transmission and Vector Relationships

Virus is transmitted by mechanical inoculation.

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 Cruciferae, Leguminosae-Caesalpinioideae, Solanaceae. The following species were susceptible to experimental virus infection: Bauhinia purpurea, Brassica campestris ssp. napus, Brassica campestris ssp. pekinensis, Brassica campestris ssp. rapa, Nicotiana bigelovii, Nicotiana clevelandii, Nicotiana tabacum.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Nicotiana tabacum.

Diagnostic Hosts

Diagnostic host species and symptoms:
Brassica campestris ssp. napus and ssp. rapa — local chlorotic or necrotic lesions; systemic necrosis of veins and petioles, severe stunting.

Brassica campestris ssp. pekinensis — local necrotic and/or chlorotic lesions; occasional systemic veinal necrosis and leaf distortion.

Diagnostic host: insusceptible host species Nicotiana tabacum.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Brassica campestris ssp. rapa.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Brassica campestris ssp. pekinensis (L).

References to host data: Hollings and Stone 1969.

Cytopathology: Inclusions are not present in infected cells.

Geographical Distribution

The virus occurs in the United Kingdom.

References

Blencowe, J.W. and Broadbent, L. (1957). Rep. Rothamsted exp. Stn. 1956, p.105.

Broadbent, L. and Heathcote, G. (1958). Ann. appl. Biol. 46: 585.

Hollings, M. and Stone, O.M. (1969). Zbl. Bakt. ParasitKde. Abt 2, 123: 237.

Hollings, M. and Stone, O.M. (1973). C.M.I./AAB. Descr. Pl. Viruses No. 125, 3pp.

Lister, RM (1958). Pl. Path. 7: 1958.

Martini, C. (1958). Proc. 3rd Conf. Potato Virus Dis. Lisse-Wageningen 1957, p. 106.

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 856 by A.A. Brunt, 1995. 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 125.



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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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