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00.010.0.02.013. Parietaria mottle virus

Cite this publication as: ICTVdB Management (2006). 00.010.0.02.013. Parietaria mottle 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: Torino; Italy.

Host of Isolate and Habitat Details
Source of isolate: Parietaria officinalis.

Natural host and symptoms
Parietaria officinalis — bright yellow mosaic or mottling.

Reference to Isolation Report
Caciagli et al. (1989).

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: 00.010.0.02.013. Virus accession number: 10002013. Obsolete virus code: 10.0.2.10.01; superceded accession number: 10021001.
NCBI Taxon Identifier NCBI Taxonomy ID: 64958.

Name, Synonyms and Lineage

ICTV approved acronym: PMoV. Virus is an ICTV approved species of the genus 00.010.0.02. Ilarvirus in the family 00.010. Bromoviridae.

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 24 nm, or 29 nm, or 36 nm. Capsids appear round. The capsomer arrangement is not obvious. Virus preparations contain more than one particle component.
























Electron micrograph of Bromoviridae.

Electron microscopic preparation and references: Purification. Reference for electron microscopic methods: Caciagli et al. (1989).

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.354 g cm-3. There are 1 sedimenting component(s) found in purified preparations (in CsCl), or 3 sedimenting component(s) found in purified preparations (in sucrose). A260/A280 ratio is 1.63. The thermal inactivation point (TIP) is at 50°C. The longevity in vitro (LIV) is 1.5 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 3. The infectivity is retained when deproteinized with proteases; retained when deproteinized with phenol or detergent.

Nucleic Acid

The genome is segmented; tripartite, segements are distribute among 3 particle types of different size; consists of four segments 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 subgenomic RNA. The complete genome is 11800 nucleotides long, is sequenced, complete sequence is about 4300 nucleotides long. RNA-2 is sequenced, but only an estimate is available, complete sequence is 3700 nucleotides long. RNA-3 is sequenced, but only an estimate is given, complete sequence is 2700 nucleotides long. RNA-4 is subgenomic has been sequenced and complete sequence is 1100 nucleotides long. Subgenomic RNA-4 is an mRNA derived from RNA-3 negative strand template. The multipartite genome is divided among more than one type of particle and the segments are distributed between 3 different types of particles. The largest particles contain each one molecule of RNA-1 (sedimenting component B). The medium sized particles contain each one molecule of RNA-2 (sedimenting component M). The smallest particles contain one molecule each of RNA-3 and RNA-4 (sedimenting component T). Reference to nucleotide sequence Boccardo and Milne (1975, Caciagli et al. (1989).

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) located in the capsid.

Structural Proteins: Capsid protein is involved in viral encapsidation and involved in protein movement.

Reference to method of preparation: Francki et al. (1980).

Lipids

Lipids are absent.

Antigenicity

The virus does not show serological relationships to apple mosaic, Hydrangea mosaic, prune dwarf, spinach latent, tobacco streak and Tulare apple 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 HAMAMELIDAE; Order Urticales.

General Symptoms in Plants Symptoms mosaic or mottling.

Severity and Occurrence of Disease

Host: Signs and symptoms vary seasonally.

Transmission and Vector Relationships

Virus is transmitted by mechanical inoculation; transmitted by grafting.

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 Chenopodiaceae, Labiatae, Leguminosae-Papilionoideae, Solanaceae, Tetragoniaceae, Urticaceae. The following species were susceptible to experimental virus infection: Chenopodium album, Chenopodium amaranticolor, Chenopodium murale, Chenopodium quinoa, Lycopersicon esculentum, Nicotiana clevelandii, Nicotiana megalosiphon, Nicotiana tabacum, Ocimum basilicum, Parietaria officinalis, Petunia x hybrida, Phaseolus vulgaris, Spinacia oleracea, Tetragonia tetragonioides, Vigna unguiculata (cv. Black), Vigna unguiculata ssp. sesquipedalis .

Host:
Experimentally infected hosts mainly show symptoms of chlorotic local lesions and then mottle or leafroll in species of the Chenopodiaceae and necrotic local lesions and necrotic patching in species of Solanaceae.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Apocynaceae, or Caryophyllaceae, Chenopodiaceae, Compositae, Cucurbitaceae, or Leguminosae-Caesalpinioideae, Leguminosae-Papilionoideae, Solanaceae, or Umbelliferae. Species inoculated with virus that do not show signs of susceptibility: Amaranthus caudatus, Beta vulgaris, Capsicum annuum, Cassia occidentalis, Catharanthus roseus, Cucumis sativus, Cucurbita pepo, Cyamopsis tetragonoloba, Gomphrena globosa, Momordica balsamina, Nicotiana glutinosa, Nicotiana tabacum, Petroselinum crispum, Physalis floridana, Saponaria vaccaria, Zinnia elegans.

Diagnostic Hosts

Diagnostic host species and symptoms:

Chenopodium album — local lesions and systemic mottle.

Chenopodium amaranticolor — local lesions and systemic leafroll.

Chenopodium quinoa, Spinacia oleracea — systemic mottle and leaf malformation.

Lycopersicon esculentum — mosaic, necrosis.

Nicotiana clevelandii — chlorosis, rosetting and mottle.

Nicotiana megalosiphon — leaf malformation.

Nicotiana tabacum cv. Xanthi — necrotic etching; systemic.

Nicotiana tabacum cv. White Burley — local lesions.

Ocimum basilicum — necrotic etching.

Tetragonia tetragonioides — latent.

Diagnostic host: insusceptible host species Amaranthus caudatus, Cucumis sativus, Cyamopsis tetragonoloba, Momordica balsamina, Nicotiana glutinosa.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Chenopodium amaranticolor, C. quinoa.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium murale (L), C. quinoa (W), Phaseolus vulgaris (L), Vigna unguiculata cv. Black (W).

References to host data: Caciagli et al. (1989).

Cytopathology: Inclusions are not present in infected cells.

Geographical Distribution

The virus occurs in Italy.

References

Boccardo, G. and Milne, R.G. (1975). Virology 68: 79.

Caciagli, P., Boccardo, G. and Lovisolo, O. (1989). Pl. Path. 38: 577.

Francki, RIB., Hatta, T., Boccardo, G. and Randles, J.W. (1980). Virology 101: 233.

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 551 by P. Caciagli, 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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Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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