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Descriptions are generated automatically from the ICTVdB database including links. Some descriptions are only very basic and links may point to documents that are not yet published on the Web.

00.017.0.01.005. Burdock yellows virus

Cite this publication as: ICTVdB Management (2006). 00.017.0.01.005. Burdock yellows 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: Japan.

Host of Isolate and Habitat Details
Source of isolate: Arctium lappa.

Natural host and symptoms
Arctium lappa — faint chlorosis, often marginal, or symptomless. Infected plants often also contain burdock mosaic virus.

Reference to Isolation Report
Inouye and Mitsuhata (1971).

Classification

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

ICTVdB Virus Code: 00.017.0.01.005. Virus accession number: 17001005. Obsolete virus code: 17.0.1.0.004; superceded accession number: 17010004.

Name, Synonyms and Lineage

ICTV approved acronym: BuYV. Virus is an ICTV approved species of the genus 00.017.0.01. Closterovirus 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 with a length of 1725 nm and a width of 12 nm. Axial canal is indistinct. Basic helix is obvious. Pitch of helix is 3.6 nm.

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

Physicochemical and Physical Properties

A260/A280 ratio is 1.73. The thermal inactivation point (TIP) is at 45-50°C. The longevity in vitro (LIV) is 1-2 days.

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.

Antigenicity

The virus does not show serological relationships to Carnation necrotic fleck virus, Citrus tristeza virus and Wheat yellow leaf virus.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation (with difficulty).

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Dactynotus gobonis. Virus is transmitted in a semi-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 Compositae, Solanaceae. The following species were susceptible to experimental virus infection: Arctium lappa, Nicotiana clevelandii.

Host:
Experimentally infected hosts mainly show symptoms of yellows.

Diagnostic Hosts

Diagnostic host species and symptoms:

Nicotiana clevelandii — systemic leaf chlorosis.

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):
Nicotiana clevelandii (W).

Histopathology: Virus can be best detected in leaves, mesophyll and vascular parenchyma. 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 viroplasma. Inclusions contain mature virions. Other cellular changes include necrosis of phloem cells.

Geographical Distribution

The virus occurs in Japan.

References

Inouye, T. and Mitsuhata, K. (1971). Agric. Res. 54: 1.

Nakano, M. and Inouye, T. (1980). Ann. Phytopath. Soc. Japan 46: 7.

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 125 by A.A. Brunt, 1991.



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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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