[Home] [ICTV Taxonomy - Index of Viruses] [Virus Descriptions] [Character List] [Picture Gallery]
[Tutorial] [Online Data Retrieval & Identification] [Virus Isolate Registration & Submission] [Search]
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.

00.056.0.81.006. Centrosema mosaic virus

Cite this publication as: ICTVdB Management (2006). 00.056.0.81.006. Centrosema 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: Papua New Guinea.

Host of Isolate and Habitat Details
Source of isolate: Centrosema ssp., Crotalaria ssp. and other tropical legumes.

Natural host and symptoms
Centrosema pubescens, Crotalaria anagyroides, C. retusa, C. goreensis, C. mucronata, Calopogonium mucunoides (which sets no seeds), Desmodium distortum — vein-clearing, mosaic, leaf malformation.

Reference to Isolation Report
Van Velsen and Crowley (1962).

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: 00.056.0.81.006. Virus accession number: 56081006. Obsolete virus code: 56.0.1.T.006; superceded accession number: 5601t006.

Name, Synonyms and Lineage

ICTV approved acronym: CenMV. Virus is a tentative member of the genus 00.056.0.01. Potexvirus in the family 00.056. Flexiviridae.

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 length of 580 nm. Axial canal is indistinct.

Electron microscopic preparation and references: Reference for electron microscopic methods: Crowley and Francki, 1963.

Physicochemical and Physical Properties

The thermal inactivation point (TIP) is at 55-58°C. The longevity in vitro (LIV) is 0.25 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 3-4.

Nucleic Acid

The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered.

Proteins

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

Lipids

Lipids are not reported.

Transcription: The virus codes for 5 ORF(s).

Coding Strategy of Segment 1: Sequence has a gene block. Sequence has triple gene block sequence (TGB). Encodes proteins involved in cell to cell movement.

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 ROSIDAE.

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; transmitted by grafting; not transmitted by contact between hosts; not transmitted by seeds.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Heteroptera; Lygaeidae and Nysius ssp. Virus is transmitted in a non-persistent manner.

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 Leguminosae-Papilionoideae. The following species were susceptible to experimental virus infection: Calopogonium mucunoides, Centrosema, Centrosema pubescens, Crotalaria anagyroides, Crotalaria goreensis, Crotalaria juncea, Crotalaria mucronata, Crotalaria retusa, Crotalaria spectabilis, Desmodium distortum, Trifolium subterraneum.

Host:
Experimentally infected hosts mainly show symptoms of mosaic.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Chenopodiaceae, Cucurbitaceae, or Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Arachis hypogaea, Chenopodium amaranticolor, Cicer arietinum, Cucumis sativus, Datura stramonium, Glycine max, Lupinus albus, Lupinus angustifolius, Lycopersicon esculentum, Medicago sativa, Nicotiana glutinosa, Nicotiana rustica, Nicotiana tabacum, Petunia x hybrida, Phaseolus lunatus, Phaseolus vulgaris, Pisum sativum, Sesbania exaltata, Trifolium hybridum, Trifolium incarnatum, Trifolium pratense, Trifolium repens, Vicia faba, Vigna unguiculata, Vigna unguiculata ssp. cylindrica, Vigna unguiculata ssp. sesquipedalis .

Diagnostic Hosts

Diagnostic host species and symptoms:

Crotalaria spectabilis, C. juncea, C. retusa, C. anagyroides, Centrosema pubescens and Trifolium subterraneum — mosaic. Diagnostic host: insusceptible host species Nicotiana tabacum, Phaseolus vulgaris, Pisum sativum, Vicia faba, Vigna unguiculata.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Crotalaria anagyroides.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Crotalaria anagyroides (W).

Geographical Distribution

The virus occurs in Papua New Guinea.

References

Crowley, N.C. and Francki, RIB. (1963). Aust. J. biol. Sci. 16: 468.

Van Velsen, R.J. and Crowley, N.C. (1962). Aust. J. agric. Sci. 13: 220.

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

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 191 by A.J. Gibbs, 1985. Revised 1987.



Limit search to: Title & Body Title Document Path
Show Reverse Sort

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

ICTVdB and DELTA related References

Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
Copyright © 2002    International Committee on Taxonomy of Viruses.    All rights reserved.


Additional access points to virus species lists, descriptions and images on the web:

Species catalogue                     iSpecies.org - a species search engine           a species search engine

Google Analytics      Google Analytics: activity view