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00.039.0.01.015.00.002. Strawberry mild yellow edge virus

Cite this publication as: ICTVdB Management (2006). 00.039.0.01.015.00.002. Strawberry mild yellow edge 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: the United States of America (and England).

Host of Isolate and Habitat Details
Source of isolate: Fragaria vesca.

Natural host and symptoms
Fragaria chiloensis, F. x ananassa — usually symptomless.

F. vesca — leaflets cupped, chlorotic margins, vigour reduced. An isolate from the Pacific Coast of North America causes chlorotic vein netting and necrosis of youngest leaves.

F. virginiana — leaflets cupped, vigour reduced.

Reference to Isolation Report
Horne (1922, Harris (1933).

Classification

This is a description of a plant virus at the species level with data on all virus properties from morphology to genome, replication, antigenicity and biological properties.

ICTVdB Virus Code: 00.039.0.01.015.00.002. Virus accession number: 39001215. Obsolete virus code: 00.039.0.00.015.00.000.002.; 39.0.1.0.151; superceded accession number: 39000151; 39010151.
NCBI Taxon Identifier NCBI Taxonomy ID: 12187.

Name, Synonyms and Lineage

Synonym(s): soybean dwarf virus. Virus is an ICTV approved species. Virus is not assigned to a genus; of the family 00.039. Luteoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with polyhedral symmetry. The isometric capsid has a diameter of 23-28 nm. Capsids appear hexagonal in outline. The capsomer arrangement is not obvious.

Electron microscopic preparation and references: Virus preparation contains few virions. Reference for electron microscopic methods: Martin and Converse (1982; 1985).

Physicochemical and Physical Properties

There are 1 sedimenting component(s) found in purified preparations. The thermal inactivation point (TIP) is at cannot be directly measured but is 45-50°C (for aphid acquisition from living leaves).

Nucleic Acid

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

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins and non-structural proteins.

Lipids

Lipids are absent.

Antigenicity

The virus is serologically related to soybean dwarf virus, closely; beet western yellows virus. The virus does not show serological relationships to potato leafroll, bean leaf roll and tobacco necrotic dwarf viruses. The relationship to soybean dwarf virus is so close that they are probably the same species.

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 not transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between hosts (of Fragaria vesca clone UC-6, not transmitted by seeds; not transmitted by pollen.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Chaetosiphon fragaraefolii, C. thomasi, C. thomasi jacobi. Virus is transmitted in a persistent manner; can facilitate the vector transmission of another virus (strawberry mild yellow edge-associated virus).

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 Rosaceae, Rutaceae. The following species were susceptible to experimental virus infection: Citrus aurantium, Duchesnea indica, Fragaria chiloensis, Fragaria ovalis, Fragaria vesca, Fragaria virginiana, Fragaria x ananassa, Sanguisorba minor.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Rosaceae. Species inoculated with virus that do not show signs of susceptibility: Fragaria vesca (strain UC-6 is insusceptible or only very mildly infected when graft inoculated).

Diagnostic Hosts

Diagnostic host species and symptoms:

Fragaria vesca — leaflets cupped, chlorotic margins, vigour reduced; chlorotic vein netting and necrosis of young leaves with Pacific coast strain.

F. virginiana — leaflets cupped, vigour reduced.

F. ovalis — symptomless carrier.

Diagnostic host: insusceptible host species Fragaria vesca strain UC-6 is insusceptible or only very mildly infected when graft inoculated.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Fragaria chiloensis, F. x ananassa, F. vesca, F. virginiana.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Fragaria vesca (W).

Histopathology: Virus can be best detected in roots (Yosuikewa, 1985).

Geographical Distribution

The virus is probably distributed worldwide. The virus spreads in East Asia, Eurasia, the Mediterranean, North America, and Australasia and Pacific Islands.

References

Converse, RH, Martin, R.R. and Spiegel, S. (1987). In: Virus Diseases of Small Fruits; ed. RH Converse. U.S. Dep. Agric. Hdbk No. 631, p. 25.

Harris, RV (1933). J. Pomol. 11: 56.

Harris, RV and King, M.E. (1940). Rep. East Malling Res. Stn. 1939, p. 66.

Horne, W.T. (1922). Rep. Calif. Agric. Exp. Stn. 1921-1922, p. 122.

Martin, R.R. and Converse, RH (1982). Acta Hort. 129: 75.

Martin, R.R. and Converse, RH (1985). Phytopath. Z. 114: 21.

Mellor, F.C. and Frazier, N.W. (1970). In: Virus Diseases of Small Fruits and Grapevines, p. 14; ed. N.W. Frazier. Univ. Calif. Div. Agric. Sci., Berkeley.

Yankulova, M. and Schmelzer, K. (1974). Virusni bolesti po rastenyala, pp.33-42.

Yoshikawa, N., Ohki, S.T., Kobatake, H., Osaki, T. and Inouye, T. (1984). Ann. Phytopath. Soc. Japan 50: 659.

Yoshikawa, N. and Inouye, T. (1986). Ann. Phytopath. Soc. Japan 52: 643.

The following generic references are cited in the most recent ICTV Report.

PubMed References.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 760 by R.H. Converse, 1985 and J.A. Cooper, 1985.



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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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