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00.078.0.81.012. Tobacco yellow vein virus

Cite this publication as: ICTVdB Management (2006). 00.078.0.81.012. Tobacco 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: Malawi.

Host of Isolate and Habitat Details
Source of isolate: Nicotiana tabacum.

Natural host and symptoms
Nicotiana rustica, Nicotiana tabacum — chlorotic vein-banding and leaf malformation.

Reference to Isolation Report
Adams and Hull (1972).

Classification

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

ICTVdB Virus Code: 00.078.0.81.012. Virus accession number: 78081012. Obsolete virus code: 78.0.1.T.010; superceded accession number: 7801t010.

Name, Synonyms and Lineage

The taxon has the accepted ICTV name.

ICTV approved acronym: TYVV. Virus is a tentative member. Virus is of the genus 00.078.0.01. Umbravirus; not assigned to a family.

Virion Properties

Enveloped structures occur in vacuoles of infected cells, but no conventional virus structure have been found. Particles contain nucleic acid. Virus relies for encapsidation on a helper virus.

Virion Properties

Morphology

No true particles are found, but vesicles containing viral matter are recovered that consist of a nucleoprotein complex. During their life cycle, virions have not been observed outside a cellular environment.

Nucleic Acid

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

Proteins

The viral genome encodes prehaps structural proteins and non-structural proteins, or structural proteins.

Lipids

Lipids are present and located in the vesicles encapsidating the viral nucleic acid.

Antigenicity

Does not cross-protect against tobacco mottle and groundnut rosette viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Class Magnoliopsida (Dicotyledonae)
Subclass ASTERIDAE; Order Solanales;
Family Solanaceae. Virus found in Nicotiana tabacum (common tobacco) [TaxID 4097].

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

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Myzus persicae. Virus is transmitted in a persistent manner; retained when the vector moults; requires, for vector transmission, a helper virus (tobacco yellow vein assistor (?) luteovirus).

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 Leguminosae-Papilionoideae, Solanaceae. The following species were susceptible to experimental virus infection: Arachis hypogaea, Glycine max, Lycopersicon esculentum, Nicandra physalodes, Nicotiana clevelandii, Nicotiana glutinosa, Nicotiana rustica, Nicotiana tabacum, Petunia x hybrida.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Chenopodiaceae, Cruciferae, Cucurbitaceae, Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Brassica campestris ssp. pekinensis, Chenopodium amaranticolor, Chenopodium quinoa, Cucumis sativus, Datura stramonium, Phaseolus vulgaris, Raphanus sativus, Vicia faba, Vigna unguiculata.

Diagnostic Hosts

Diagnostic host species and symptoms:

Nicotiana tabacum, N. clevelandii, N. glutinosa, N. rustica — systemic chlorotic vein-banding; severe isolates also cause malformation.

Lycopersicon esculentum, Nicandra physalodes, Petunia x hybrida — light and dark green systemic leaf mottling.

Arachis hypogaea — systemic pale green rings and pale green areas along midribs.

Glycine max — mild systemic leaf mottling. Diagnostic host: insusceptible host species Brassica campestris ssp. pekinensis, Chenopodium amaranticolor, C. quinoa, Cucumis sativus, Datura stramonium.

Maintenance and Propagation Hosts

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

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Nicotiana tabacum (W), N. rustica (W), N. clevelandii (W), N. glutinosa (W).

References to host data: Adams and Hull (1972).

Geographical Distribution

The virus occurs in Malawi.

Ecology, Epidemiology and Control

Studies reported by Adams and Hull (1972).

List of Strains and Isolates in the Species

Mild and virulent strains.

References

Adams, AN. and Hull, R. (1972). Ann. appl. Biol. 71: 135.

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 820 by A.A. Brunt and AN. Adams, 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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Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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