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00.057.0.01.037. Leek yellow stripe virus

Cite this publication as: ICTVdB Management (2006). 00.057.0.01.037. Leek yellow stripe 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: several European countries; Germany.

Host of Isolate and Habitat Details
Source of isolate: Allium porrum.

Natural host and symptoms
Allium porrum — yellow leaf striping.

Allium cepa var. ascalonicum, A cepa — rarely infected.

Reference to Isolation Report
Bos et al. (1978).

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: 00.057.0.01.037. Virus accession number: 57001037. Obsolete virus code: 57.0.1.0.037; superceded accession number: 57010037.
NCBI Taxon Identifier NCBI Taxonomy ID: 42004.

Name, Synonyms and Lineage

ICTV approved acronym: LYSV. Virus is an ICTV approved species of the genus 00.057.0.01. Potyvirus in the 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 820 nm. Axial canal is indistinct. Basic helix is obscure.

Electron microscopic preparation and references: Virus preparation contains many virions. Reference for electron microscopic methods: Huttinga (1975, Bos et al. (1978).

Physicochemical and Physical Properties

Virions have a buoyant density in sucrose of 1.326 g cm-3. There are 1 sedimenting component(s) found in purified preparations. The thermal inactivation point (TIP) is at 50-60°C. The longevity in vitro (LIV) is 3-4 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 2-3.

Nucleic Acid

The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered, is partially sequenced. Sequence has the accession number [X89711] Em(44)n:Lyspvpoly Gb(90)n:Lyspvpoly Leek yellow stripe virus genomic RNA for partial nuclear inclusion protein and coat protein.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins and non-structural proteins. Virions consist of 1 structural protein(s).

Structural Proteins: Reference to method of preparation: Huttinga (1975).

Lipids

Lipids are not reported.

Antigenicity

The virus is serologically related to onion yellow dwarf virus.

Diagnostics and Reference Collections

The best tests for diagnosis are onions infected by leek yellow stripe virus (LYSV) with difficulty, and leek is very resistant to onion yellow dwarf virus (OYDV). Allium fistulosum is immune to LYSV but infected symptomlessly by OYDV. LYSV gives local lesions in Chenopodium amaranticolor and C. quinoa. LYSV differs from shallot latent virus in virion size and morphology and in forming larger and later local lesions on Chenopodium amaranticolor and C. quinoa.

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 a vector. Virus is transmitted by mechanical inoculation; not transmitted by contact between hosts; not transmitted by seeds.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae. Virus is transmitted in a non-persistent manner.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in several families. Susceptible host species are found in the Family Alliaceae, Amaranthaceae, Chenopodiaceae, Solanaceae. The following species were susceptible to experimental virus infection: Allium cepa, Allium cepa var. ascalonicum, Allium porrum, Celosia argentea, Chenopodium album, Chenopodium amaranticolor, Chenopodium foetidum, Chenopodium murale, Chenopodium quinoa, Nicotiana debneyi.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Alliaceae, Amaranthaceae, Caryophyllaceae, Chenopodiaceae, Compositae, Cruciferae, Cucurbitaceae, or Leguminosae-Papilionoideae, Solanaceae, Tetragoniaceae (1 /1), or Umbelliferae. Species inoculated with virus that do not show signs of susceptibility: Allium cepa, Allium cepa var. ascalonicum, Allium fistulosum, Apium graveolens, Brassica oleracea var. botrytis, Chenopodium ambrosioides, Chenopodium capitatum, Chenopodium foliosum, Cucumis sativus, Datura stramonium, Gomphrena globosa, Lactuca sativa, Lycopersicon esculentum, Nicotiana clevelandii, Nicotiana glutinosa, Nicotiana megalosiphon, Nicotiana tabacum, Petunia x hybrida, Phaseolus vulgaris, Pisum sativum, Silene armeria, Sinapis alba, Spinacia oleracea, Tetragonia tetragonioides, Trifolium pratense, Trifolium repens, Vicia faba, Zinnia elegans.

Diagnostic Hosts

Diagnostic host species and symptoms:

Allium porrum — yellow leaf stripes.

Chenopodium amaranticolor, C. quinoa — chlorotic local lesions, becoming green rings when leaves senesce.

Celosia argentea — brown necrotic local lesions.

Diagnostic host: insusceptible host species Allium fistulosum, Cucumis sativus, Nicotiana clevelandii, N. megalosiphon, Petunia x hybrida.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Allium porrum.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium quinoa (L), C. amaranticolor (L).

References to host data: Verhoyen and Horvat (1973, Bos et al. (1978, Graichen (1978).

Histopathology: Virus can be best detected in leaves.

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are pinwheels. Inclusions are large fibrous or granular cytoplasmic inclusion bodies.

Geographical Distribution

The virus spreads in Eurasia. The virus occurs in New Zealand (Aotearoa).

Ecology, Epidemiology and Control

Studies reported by Bos et al. (1975).

References

Bos, L. (1981). CMI/AAB Descr. Pl. Viruses No. 240, 4 pp.

Bos, L., Huijberts, N., Huttinga, H. and Maat, D.Z. (1978). Neth. J. Pl. Path. 84: 185.

Bremer, H. (1937). Phytopath. Z. 10: 79.

Graichen, K. (1978). Arch. Phytopath. PflSchutz. 14: 1.

Kupke, F.W. (1957). Rhein. Monatschr. Gem. Obst. Gartenb. 45: 173.

Mohamed, N.A. and Young, B.R. (1980). N.Z. Jl agric. Res. 23: 129.

Verhoyen, M. and Horvat, F. (1973). Parasitica 29: 16.

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 437 by L. Bos, 1987. A description of the virus is found in DPV, a database for plant viruses developed by the Association of Applied Biologists (AAB), with the number 240.



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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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