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00.078.0.01.007.00.002. Bean yellow vein banding virus

Cite this publication as: ICTVdB Management (2006). 00.078.0.01.007.00.002. Bean yellow vein banding 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: Southern England; the United Kingdom.

Host of Isolate and Habitat Details
Source of isolate: Vicia faba.

Natural host and symptoms
Vicia faba — yellow vein-banding, mottling; symptoms enhanced when co-infecting with pea enation mosaic virus.

Reference to Isolation Report
Cockbain (1978).

Classification

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

ICTVdB Virus Code: 00.078.0.01.007.00.002. Virus accession number: 78001207. Obsolete virus code: 78.0.1.0.002; superceded accession number: 78001002; 78010002.

Name, Synonyms and Lineage

Synonym(s): possibly pea silky green virus (Cockbain et al., 1986). ICTV approved acronym: BYVBV. Acronym(s): BYVBV. Virus is assigned to species 00.078.0.01.007. Pea enation mosaic virus-2 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 encapisadtion and transmittion on the vector of the helper virus and virus relies on the coat protein (CP) from a helper virus, characteristically from a virus in the family (Luteoviridae).

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. Virions measure 50-90 nm in diameter.

Nucleic Acid

The genome is not segmented and contains a single molecule of linear positive-sense, single-stranded RNA.

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.

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 ROSIDAE; Order Fabales;
Family Fabaceae (~Leguminosae-Papilionoideae) Phaseolus vulgaris.

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

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; Acyrthosiphon pisum, Myzus persicae. Virus is not transmitted by Aphis fabae. Virus is transmitted in a persistent manner; requires, for vector transmission, a helper virus (pea enation mosaic virus in the field; or bean leaf roll virus in glasshouse tests).

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in many families. Susceptible host species are found in the Family Chenopodiaceae, Leguminosae-Papilionoideae, Solanaceae. The following species were susceptible to experimental virus infection: Chenopodium amaranticolor, Chenopodium quinoa, Nicotiana clevelandii, Nicotiana glutinosa, Pisum sativum, Trifolium incarnatum, Vicia faba, Vicia sativa.

Diagnostic Hosts

Diagnostic host species and symptoms:

Chenopodium amaranticolor, C. quinoa — local chlorotic or necrotic lesions; no symptoms.

Nicotiana clevelandii, N. glutinosa, Pisum sativum, Trifolium incarnatum, Vicia faba, V. sativa — no local symptoms; systemic mottling.

Geographical Distribution

The virus occurs in the United Kingdom.

References

Cockbain, AJ. (1978). Rep. Rothamsted Exp. Stn. for 1977, p. 221.

Cockbain, AJ. (1983). The Faba Bean (Vicia faba): A Basis for Improvement; ed. P.D. Hebblethwaite. Butterworths, Sevenoaks, U.K.

Cockbain, AJ. Jones, P. Woods, R.D. (1986). Ann. appl. Biol. 108: 59.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 77 by K. Boswell, 1985. From Cockbain 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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