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00.077.0.01.006. Clitoria yellow vein virus

Cite this publication as: ICTVdB Management (2006). 00.077.0.01.006. Clitoria yellow vein 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: Kenya.

Host of Isolate and Habitat Details
Source of isolate: Clitoria ternatea.

Natural host and symptoms
Abrus precatorius — mottle.

Clitoria ternatea — systemic vein chlorosis.

Reference to Isolation Report
Bock et al. (1977a).

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: 00.077.0.01.006. Virus accession number: 77001006. Obsolete virus code: 77.0.1.0.004; superceded accession number: 77010004.
NCBI Taxon Identifier NCBI Taxonomy ID: 12157.

Name, Synonyms and Lineage

ICTV approved acronym: CYVV. Virus is an ICTV approved species of the genus 00.077.0.01. Tymovirus; family 00.077. Tymoviridae.

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. Capsids appear round. The capsomer arrangement is clearly visible.

Electron microscopic preparation and references: Virus preparation contains many virions. Reference for electron microscopic methods: Bock et al. (1977a).

Physicochemical and Physical Properties

There are 2 sedimenting component(s) found in purified preparations. The sedimentation coefficient is of the fastest 109 S20w; of the other(s) are 50 S20w. A260/A280 ratio is 1.69 (B; uncorrected). The thermal inactivation point (TIP) is at 72°C. The longevity in vitro (LIV) is 21 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 8.

Nucleic Acid

The Mr of the genome constitutes 37% of the virion by weight. The genome is monopartite. Only one particle size of linear, single-stranded RNA is recovered, is partially sequenced. Sequence has the accession number

[M15963] Em(40)_vi:TYMTY3CY Gb(84)_vi:CYE3CYVV Clitoria yellow vein virus 3' end which can form tRNA-like structure. 11/90 120bp.
[M58311] Em(40)_vi:CYERRLT Gb(84)_vi:CYERRLT Clitoria yellow vein virus (CYVV) 3' terminus tRNA-like structure. 8/91 83bp. 2 sequences.

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) located in the capsid.

Structural Proteins: Reference to method of preparation: Bock et al. (1977a).

Reference to amino acid sequence or composition from the VP gene; (A.M. Mackenzie, pers. comm).

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, Class Magnoliopsida (Dicotyledonae).

General Symptoms in Plants Virus affects the vascular system and photosynthetic system. Symptoms are expressed in the leaf; include chlorosis. Symptoms in leaves include development of patterns or markings that are visible in the intercostal regions and venation. Intercostal regions show chlorosis. Leaf veins are chlorotic and include vein clearing. Leaves are turning yellow. Leaves with netting.

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

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 Leguminosae-Caesalpinioideae, Leguminosae-Papilionoideae, Malvaceae, Solanaceae. The following species were susceptible to experimental virus infection: Abelmoschus esculentus, Abrus precatorius, Arachis hypogaea, Bauhinia purpurea, Cajanus cajan, Cassia occidentalis, Cicer arietinum, Clitoria ternatea, Datura metel, Desmodium tortuosum, Glycine max, Nicotiana clevelandii, Phaseolus vulgaris, Pisum sativum, Solanum nigrum, Vigna angularis, Vigna radiata, Vigna subterranea, Vigna unguiculata.

Host:
Experimentally infected hosts mainly show symptoms of necrotic or chlorotic local lesions, systemic vein chlorosis or mosaic.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Bombacaceae, or Chenopodiaceae, Convolvulaceae, Cucurbitaceae, or Leguminosae-Papilionoideae, Malvaceae, Solanaceae, Sterculiaceae (1 /1). Species inoculated with virus that do not show signs of susceptibility: Adansonia digitata, Beta vulgaris, Cajanus cajan, Capsicum annuum, Capsicum frutescens, Ceiba pentandra, Chenopodium amaranticolor, Chenopodium quinoa, Citrullus lanatus, Crotalaria spectabilis, Cucumis melo, Cucumis sativus, Cucurbita maxima, Cucurbita pepo, Datura ferox, Datura stramonium, Glycine max, Gomphrena globosa, Gossypium hirsutum, Ipomoea setosa, Lycopersicon esculentum, Macroptilium lathyroides, Medicago sativa, Melilotus albus, Nicandra physalodes, Nicotiana glutinosa, Nicotiana tabacum, Petunia x hybrida, Phaseolus lunatus, Physalis floridana, Solanum melongena, Spinacia oleracea, Theobroma cacao, Trifolium repens, Trifolium subterraneum, Vicia faba.

Diagnostic Hosts

Diagnostic host species and symptoms:

Bauhinia purpurea, Cajanus cajan — vein netting.

Clitoria ternatea — systemic mosaic and vein netting.

Glycine max — systemic vein netting, chlorosis.

Phaseolus vulgaris cv. Long Tom — necrotic or chlorotic local lesions, systemic vein netting.

Vigna radiata — necrotic local lesions.

V. unguiculata — systemic mottle.

Vigna subterranea — systemic mottle.

Datura metel — systemic vein netting.

Nicotiana clevelandii — systemic vein netting.

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):
Glycine max, Phaseolus vulgaris, Datura metel, Nicotiana clevelandii.

References to host data: Bock et al. (1977a; 1977b).

Geographical Distribution

The virus occurs in Kenya.

References

Bock, K.R., Guthrie, E.J. and Meredith, G. (1977a). Ann. appl. Biol. 85: 97.

Bock, K.R. and Guthrie, E.J. (1977b). CMI/AAB Descr. Pl. Viruses No. 171, 3 pp.

Koenig, R. (1976). Virology 72: 1.

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 225 by K. Bock, 1980. Revised 1983.

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 171.



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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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