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00.057.0.81.040. Guar symptomless virus

Cite this publication as: ICTVdB Management (2006). 00.057.0.81.040. Guar symptomless 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: seed stocks from India; India (and Pakistan and isolated in the U.S.A).

Host of Isolate and Habitat Details
Source of isolate: Cyamopsis tetragonoloba.

Natural host and symptoms
Cyamopsis tetragonoloba — mild green mottle or symptomless.

Reference to Isolation Report
Hansen and Lesemann (1978).

Classification

This is a description of a plant virus at the species level.

ICTVdB Virus Code: 00.057.0.81.040. Virus accession number: 57081040. Obsolete virus code: 57.0.1.T.040; superceded accession number: 5701t040.

Name, Synonyms and Lineage

ICTV approved acronym: GSLV. Virus is an ICTV approved species of the genus 00.057.0.01. Potyvirus in 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 length of 760 nm and a width of 12 nm.

Electron microscopic preparation and references: Virus preparation contains few virions.

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.

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 disappear soon after infection.

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation; transmitted by seeds (up to 70% in commercial seeds lots).

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Myzus persicae. Virus is transmitted in a non-persistent manner.

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 Chenopodiaceae, Leguminosae-Papilionoideae. The following species were susceptible to experimental virus infection: Chenopodium album, Chenopodium amaranticolor, Chenopodium murale, Chenopodium quinoa, Cyamopsis tetragonoloba, Glycine soja, Macroptilium lathyroides, Macrotyloma uniflorum, Phaseolus vulgaris, Vigna unguiculata.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Chenopodiaceae, Cucurbitaceae, or Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Chenopodium foetidum, Cucumis sativus, Cucurbita maxima, Lycopersicon esculentum, Macrotyloma uniflorum, Nicotiana clevelandii, Nicotiana tabacum, Pisum sativum, Vicia faba.

Diagnostic Hosts

Diagnostic host species and symptoms:

Chenopodium amaranticolor — necrotic local lesions.

C. quinoa, Phaseolus vulgaris cv. Bountiful — chlorotic local lesions.

Glycine soja, Macroptilium lathyroides — systemic mosaic.

Macrotyloma uniflorum — necrotic local lesions and systemic lethal necrosis.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium amaranticolor (L), Phaseolus vulgaris cv. Bountiful (L).

References to host data: Hansen and Lesemann (1978).

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 (of the scroll-type). Inclusions do not contain mature virions. Other cellular changes include cell wall proliferations and enlarged mitochondria.

Geographical Distribution

The virus is probably distributed worldwide. The virus is found, but with no evidence of proliferation, in Australia, India, Pakistan and the U.S.A.

References

Hansen, AJ. and Lesemann, D.E. (1978). Phytopathology 68: 841.
The following generic references are cited in the most recent ICTV Report.
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 380 by G.M. Behncken, 1983.



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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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