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00.056.0.01.025.00.117.002. Hosta virus X, Korean isolate

Cite this publication as: ICTVdB Management (2006). 00.056.0.01.025.00.117.002. Hosta virus X, Korean isolate. 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

Isolate designation: Kr.
Isolation date: 05 September 2000.
Location: Seoul; Korea (South).

Host of Isolate and Habitat Details
Source of isolate: Hosta Liliaceae.

Collection and Isolation Details
Virus was isolated by Prof Ki Hyun Ryu. Plant Virus GenBank; Seoul Women's University; Seoul; 139-774; Korea (South, email: [mailto] ryu@swu.ac.kr.

Reference to Isolation Report
Ryu KH, Park MH, Lee JS, 2002. Occurrence of mosaic disease of Hosta plants caused by Hosta virus X, Plant Pathology Journal 18:313-316. Park MH, Ryu KH, 2003, Molecular evidence supporting the classification of Hosta virus X as a distinct species of the genus Potexvirus, Archives of Virology (In press).

Depositories and Collections

The isolate has been deposited at a culture collection at Plant Virus GenBank.

Classification

This is a description of a plant virus at the strain level with data restricted to morphological and genomic aspects.

ICTVdB Virus Code: 00.056.0.01.025.00.117.002. Virus accession number: 56021025.
NCBI Taxonomy Identifier Taxon ID: 214439.

Name, Synonyms and Lineage

Acronym(s): HVX-Kr. Virus is assigned to species Hosta virus X of the genus 00.056.0.01. Potexvirus in the family 00.056. Flexiviridae.

Virion Properties

Symptoms in the host are well established and the causative agent is determined.

Particles contain nucleic acid which is encapsidated. Size and shape of virus has been determined by electron microscopy.

Virion Properties

Morphology

Virions are not enveloped. Capsid/nucleocapsid is elongated with helical symmetry. Virus preparations contain one particle component. Is filamentous with a length with a length of 540 nm and a width of 13 nm.

Virion populations are comprised of particles of uniform size and only one species is recovered in preparations.

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

Physicochemical and Physical Properties

The thermal inactivation point (TIP) is at 55°C. The longevity in vitro (LIV) is 4 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 3. Virion infectivity is rapidly inactivated by freezing and thawing cycles for 10 min. Extent of effect on virion infectivity remains unaltered.

Nucleic Acid

The Mr of the genome constitutes 5% of the virion by weight. The genome is monomeric; monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered. The genome is infectious. Minor species of genomic nucleic acid are not found. The complete genome is 6000 nucleotides long. Sequence can be accessed from GenBank is partially sequenced and sequenced region is 2711 nucleotides long. Sequence has the accession number [AY181252].

GenBank records for nucleotide sequences; complete genome sequences.






















Symptoms of virus infection are found at virusbank.

References

PubMed References.

Contributor

Data have been submitted online to ICTVdB on 30-04-2003 by
Ki Hyun Ryu;
Plant Virus GenBank, Department of Life and Environmental Design;
Seoul Women's University;
Nowon-ku;
Seoul;
Korea;
Tel: + +82-2970-5618;
Fax: + +82-2970-5610;
email: [mailto] ryu@swu.ac.kr. Involved in the isolation of the virus was also Ms Min Hye Park; Plant Virus GenBank, Seoul Women's University.



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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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