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00.017.0.82.011. Diodia vein chlorosis virus

Cite this publication as: ICTVdB Management (2006). 00.017.0.82.011. Diodia vein chlorosis 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: Arkansas; the United States of America.

Host of Isolate and Habitat Details
Source of isolate: Diodia virginiana.

Natural host and symptoms
Diodia virginiana — chlorotic vein-banding and general chlorosis.

Reference to Isolation Report
Larsen et al. (1991).

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: 00.017.0.82.011. Virus accession number: 17082011. Obsolete virus code: 00.017.0.01.017.; 17.0.1.T.3.04; superceded accession number: 17001017; 1701t304.

Name, Synonyms and Lineage

ICTV approved acronym: DVCV. Virus is a tentative member of the genus 00.017.0.02. Crinivirus in the family 00.017. Closteroviridae.

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 and a width of 12 nm.

Nucleic Acid

The genome is segmented; bipartite, segements are distributed among 2 particle types of linear, positive-sense, single-stranded RNA.

Proteins

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

Lipids

Lipids are not reported.

Transcription: The genome expression is based on RNA production which can be analyzed by the dsRNA patterns found in the infected tissues. Usually there are 3 virus specified dsRNA species found in infected cells. Size of largest virus specified dsRNA 4.6 kbp. 2nd largest 4.3 kbp. 3rd largest 1.9 kbp.

Antigenicity

The virus does not show serological relationships to beet yellows and lettuce infectious yellows viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms).

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

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

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aleyrodidae; Trialeurodes abutilonea.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in few families. Susceptible host species are found in the Family Rubiaceae. The following species were susceptible to experimental virus infection: Diodia virginiana.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Chenopodiaceae, Compositae, Cucurbitaceae, Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Beta vulgaris, Chenopodium murale, Chenopodium quinoa, Cucumis sativus, Cucurbita maxima, Datura stramonium, Lactuca sativa, Nicotiana tabacum, Phaseolus vulgaris, Spinacia oleracea.

Diagnostic Hosts

Diagnostic host species and symptoms:

Diodia virginiana — chlorotic vein-banding.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Diodia virginiana.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Diodia virginiana (W).

References to host data: Larsen et al. (1991).

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

Cytopathology: Other cellular changes include the presence of virions in phloem parenchyma and sieve elements; virions are associated with membranous vesicles containing fibrils. Cytoplasm also contains greatly proliferated tubular membranes and vacuoles have double membrane-bound bodies.

Geographical Distribution

The virus occurs in the United States of America (Arkansas).

Comments

A virus with similar virions and transmissible by Trialeurodes abutilonea occurs in Diodia maritima in California, U.S.A. (Duffus et al., 1986). Its possible relationship to diodia vein chlorosis virus has yet to be determined.

References

Duffus, JE, Larsen, R.C. and Lui, H.Y. (1986). Phytopathology 76: 97.

Larsen, R.C., Kim, K.S. and Scott, H.A. (1991). Phytopathology 81: 227.

The following generic references are cited in the most recent ICTV Report.
A description of this taxon can also be found on the web at VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description; VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 304 by A.A. Brunt, 1992.

Taxonomic Proposals and Changes

A taxonomic proposal has been submitted to the ICTV by the Plant Virus Subcommittee, Study Group for Closteroviridae at the meeting in Jerusalem, August 1996, to change the position of the taxon. The proposal has been approved at the meeting of the Executive Committee in Jerusalem, 1996, the taxon has been removed from the Genus Closterovirus and is now listed as tentative species in the Genus Crinivirus.



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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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Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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