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00.015.0.06.001. Petunia vein clearing virus

Cite this publication as: ICTVdB Management (2006). 00.015.0.06.001. Petunia vein clearing 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: Germany.

Host of Isolate and Habitat Details
Source of isolate: Petunia x hybrida hort. cv. Himmelsroeschen.

Natural host and symptoms
Petunia x hybrida hort. cv. Himmelsroeschen — chlorotic clearing and banding of leaf veins, leaf malformation, stunting of sprouts.

Reference to Isolation Report
Lesemann and Casper (1973).

Classification

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

ICTVdB Virus Code: 00.015.0.06.001. Virus accession number: 15006001. Obsolete virus code: 15.0.1.T.004; superceded accession number: 1501t004.
NCBI Taxon Identifier NCBI Taxonomy ID: 59504.

Name, Synonyms and Lineage

ICTV approved acronym: PVCV. Virus is the type of the genus 00.015.0.06. Petuvirus in the family 00.015. Caulimoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid is round to elongated with icosahedral symmetry. The capsid is isometric and has a diameter of 43-46 nm. The capsid shells of virions are composed of multiple layers. Capsids appear round. The capsomer arrangement is not obvious.

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

Nucleic Acid

The genome is not segmented and contains a single molecule of circular. The genome is -RT. The genome is double-stranded DNA. The complete genome is 7206 nucleotides long. The DNA is fully sequenced. Complete sequence is 7206 nucleotides long. Sequence has the accession number [U95208]. The genome has a guanine + cytosine content of 38.2 %.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Non-Structural Proteins: The virus codes for an RNA-dependent DNA polymerase.

Lipids

Lipids are not reported.

Transcription: The virus codes for 2 ORF(s).

Translation: Replication involves a reverse transcription step.

Antigenicity

The virus does not show serological relationships to cauliflower mosaic and dahlia mosaic viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

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

Class Magnoliopsida (Dicotyledonae)
Subclass ASTERIDAE; Order Solanales;
Family Solanaceae. Virus found in Petunia x hybrida (garden petunia) [TaxID 4102].

General Symptoms in Plants Symptoms chlorotic vein clearing, leaf malformation.

Severity and Occurrence of Disease

Host: Signs and symptoms persist and vary seasonally.

Transmission and Vector Relationships

Virus is not transmitted by mechanical inoculation; transmitted by grafting.

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 Solanaceae. The following species were susceptible to experimental virus infection: Petunia x hybrida.

Host:
Experimentally infected hosts mainly show symptoms of vein clearing, leaf malformation.

Diagnostic Hosts

Diagnostic host species and symptoms:

Petunia ssp. — vein clearing, chlorotic vein banding and leaf distortion.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Petunia ssp.

Histopathology: Virus can be best detected in leaves, mesophyll, epidermis, vascular parenchyma, phloem and the companion cells. Virions are found in the cytoplasm and nucleus.

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are viroplasma. Cytoplasmic inclusion bodies are associated with the endoplasmic reticulum. Inclusions are proliferation of endoplasmic reticulum. Inclusions do not contain mature virions. Other cellular changes include proliferation of endoplasmic reticulum into multilayers, surrounding the virion-containing regions which also contain the dark staining, viroplasm like rounded and vacuolated inclusions.

Geographical Distribution

The virus is found, but with no evidence of proliferation, in Germany.

References

Casper, R., Lesemann, D.-E. and Fischer, D. (1973). Proc. 7th Conf. Czechoslovak Pl. Virologists, High Tatras 1971, Slovak Acad. Sci., Bratislava, p. 247.

Lesemann, D.-E. and Casper, R. (1973). Phytopathology 63: 1118.

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 609 by D.-E. Lesemann, 1991.

Taxonomic Proposals and Changes

A taxonomic proposal has been submitted to the ICTV by the Plant Virus Subcommittee, Study Group for Caulimoviridae at the meeting in Strasburg, April 1997. The proposal has been approved at the meeting of the Executive Committee in Strasburg, 1997, the taxon has been removed from the Species (Caulimovirus).



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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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