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00.057.0.81.042. Holcus streak virus

Cite this publication as: ICTVdB Management (2006). 00.057.0.81.042. Holcus streak 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: Wales; the United Kingdom.

Host of Isolate and Habitat Details
Source of isolate: Holcus mollis and Holcus lanatus.

Natural host and symptoms
Holcus lanatus, H. mollis — yellow streaking of younger leaves and rusty brown streaks and mottle of flag leaves.

Reference to Isolation Report
Catherall and Chamberlain (1975).

Classification

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

ICTVdB Virus Code: 00.057.0.81.042. Virus accession number: 57081042. Obsolete virus code: 57.0.1.T.042; superceded accession number: 5701t042.

Name, Synonyms and Lineage

ICTV approved acronym: HSV. Virus is a tentative member of the genus 00.057.0.01. Potyvirus; family 00.057. Potyviridae .

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 clear modal length with a length of 750 nm and a width of 12 nm.

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.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms).

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

Virus is transmitted by mechanical inoculation.

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 Gramineae. The following species were susceptible to experimental virus infection: Avena sativa, Avena strigosa, Bromus macrostachys, Bromus mollis, Holcus lanatus, Holcus mollis, Phalaris paradoxa.

Diagnostic Hosts

Diagnostic host species and symptoms:

Holcus lanatus, H. mollis, Avena sativa, A strigosa, Bromus mollis, B. macrostachys, Phalaris paradoxa — grey or chlorotic leaf streaking.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Holcus lanatus, H. mollis.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Holcus lanatus (W), H. mollis (W), Avena sativa (W).

Geographical Distribution

The virus occurs in the United Kingdom (Wales).

References

Catherall, P.L. and Chamberlain, J.A. (1975). Pl. Path. 24: 247.

The following generic references are cited in the most recent ICTV Report.
A description of this taxon in VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 395 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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Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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