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00.015.0.01.008. Mirabilis mosaic virus

Cite this publication as: ICTVdB Management (2006). 00.015.0.01.008. Mirabilis mosaic 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: Illinois; the United States of America.

Host of Isolate and Habitat Details
Source of isolate: Mirabilis nyctaginea.

Natural host and symptoms
Mirabilis nyctaginea — chlorotic vein banding of tip leaves and interveinal chlorosis of older leaves.

Reference to Isolation Report
Brunt and Kitajima (1973).

Classification

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

ICTVdB Virus Code: 00.015.0.01.008. Virus accession number: 15001008. Obsolete virus code: 15.0.1.0.008; superceded accession number: 15010008.
NCBI Taxon Identifier NCBI Taxonomy ID: 194445.

Name, Synonyms and Lineage

ICTV approved acronym: MiMV. Virus is an ICTV approved species of the genus 00.015.0.01. Caulimovirus in the family 00.015. Caulimoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 50 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 many virions. Reference for electron microscopic methods: Donson and Hull (1983, Richins and Shepherd (1983).

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.32 g cm-3. There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 210-254 S20w. The infectivity is retained when deproteinized with proteases; retained when deproteinized with phenol or detergent.

Nucleic Acid

The Mr of the genome constitutes 17% of the virion by weight. The genome is not segmented and contains a single molecule of circular. The genome is -RT. The genome is double-stranded DNA. Minor species of non-genomic nucleic acid are not found in virions. The complete genome is 7800 nucleotides long. Genome is sequenced, but only an estimate is available, complete sequence is 7800 nucleotides long. The genome has an intergenic poly (A) region at in full length cRNA. Reference to nucleotide sequence Donson and Hull (1983, Richins and Shepherd (1983).

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Proteins constitute about 83% of the particle weight.

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

Structural Proteins: Reference to method of preparation: Brunt and Kitajima (1973).

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

Lipids

Lipids are not reported.

Transcription: The virus codes for 7 ORF(s).

Translation: The genome replicates in presumably the nucleus and the cytoplasm. Replication involves a reverse transcription step.

Antigenicity

The virus does not show serological relationships to dahlia mosaic, cauliflower mosaic and carnation etched ring 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).

General Symptoms in Plants Symptoms systemic mosaics, mottles, ringspots or necrosis.

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; not transmitted by pollen.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Myzus persicae. Virus is transmitted in a semi-persistent manner; lost by the vector when it moults; does not replicate in the vector; not transmitted congenitally to the progeny of the vector.

Experimental Hosts and Symptoms

Susceptible host species are found in the Family Nyctaginaceae. The following species were susceptible to experimental virus infection: Mirabilis jalapa, Mirabilis nyctaginea.

Diagnostic Hosts

Diagnostic host species and symptoms:

Mirabilis jalapa — chlorotic vein banding of tip leaves and interveinal chlorosis of older leaves.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Mirabilis jalapa.

References to host data: Brunt and Kitajima (1973).

Histopathology: Virus can be best detected in mesophyll and epidermis. Virions are found in the cytoplasm.

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are viroplasma. Inclusions contain mature virions.

Geographical Distribution

The virus occurs in the United States of America.

References

Brunt, A.A. and Kitajima, E.W. (1973). Phytopath. Z. 76: 265.

Donson, J. and Hull, R. (1983). J. gen Virol. 64: 2281.

Richins, R.D. and Shepherd, R.J. (1983). Virology 124: 208.

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

PubMed References. A description of this taxon in VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 498 by R. Hull, 1987.



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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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Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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