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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.

00.039. Luteoviridae

Cite this publication as: ICTVdB Management (2006). 00.039. Luteoviridae. In: ICTVdB - The Universal Virus Database, version 3. 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

Classification

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

ICTVdB Virus Code: 00.039. Virus accession number: 00039FAM. Obsolete virus code: 39.; superceded accession number: 39000000.
NCBI Taxon Identifier NCBI Taxonomy ID: 119163.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 25-30 nm. Capsids appear round, or hexagonal in outline. The capsomer arrangement is clearly visible, or is not obvious. The capsid consists of 32 capsomers.

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

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.38-1.42 g cm-3.

Nucleic Acid

The Mr of the genome constitutes 28-37% of the virion by weight. The genome is not segmented and contains a single molecule of linear positive-sense, single-stranded RNA. Minor species of non-genomic nucleic acid are also found in virions. The encapsidated nucleic acid is mainly of genomic origin, but virions may also contain satellite RNA. The genome is sequenced, and complete sequence is about 5600-6044-6900 nucleotides long. The 5'-end of the genome has a genome-linked protein (VPg).

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Proteins constitute about 70-72% of the particle weight.

The viral genome encodes structural proteins and non-structural proteins. Virions consist of 1 structural protein(s), or 2 structural protein(s), or 4 structural protein(s).

Non-Structural Proteins: Virus-coded non-structural proteins have been isolated, or identified by sequence analysis and 3 non-structural protein(s) are found, or 6 non-structural protein(s) are found.

Lipids

Lipids are absent.

Genome Organization and Replication

By itself, genomic nucleic acid is infectious.

Translation: The genome replicates in the cytoplasm.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Severity and Occurrence of Disease

Host: Signs and symptoms persist, or vary seasonally, or disappear soon after infection.

Transmission and Vector Relationships

Virus is transmitted by a vector, or not transmitted by a vector. Virus is not transmitted by mechanical inoculation; transmitted by grafting, or not transmitted by grafting; not transmitted by contact between hosts; not transmitted by seeds; not transmitted by pollen.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae. Virus is transmitted in a persistent manner; retained when the vector moults; does not replicate in the vector; not transmitted congenitally to the progeny of the vector; does not require a helper virus for vector transmission, or can facilitate the vector transmission of another virus.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in many families to few families.

Histopathology: Virions are found in the cytoplasm, or nucleus, or cell vacuole.

Cytopathology: Inclusions are present in infected cells, or not present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are crystals, or amorphous X-bodies, or membranous bodies. Inclusions contain mature virions.

Geographical Distribution

The virus is probably distributed worldwide. The virus spreads in Africa, or East Asia, or Eurasia, or the Mediterranean, or North America, or Australasia and Pacific Islands. The virus occurs in Australia, or Belgium, or Brazil, or Canada, or China, or Ethiopia, or Germany, or Indonesia, or Iran, or Japan, or Lebanon, or Malawi, or New Zealand (Aotearoa), or Pakistan, or South Africa, or Sudan, or Syria, or Thailand, or Tunisia, or Turkey, or the United Kingdom, or the United States of America, or Zimbabwe.

Taxonomic Structure of the Family

00.039.0.01. Luteovirus
00.039.0.02. Polerovirus
00.039.0.03. Enamovirus.

Unassigned Viruses

List of Unassigned Viruses in the Family.

References

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

PubMed References.
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 339.



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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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