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00.029.0.04.001. Tomato pseudo-curly top virus

Cite this publication as: ICTVdB Management (2006). 00.029.0.04.001. Tomato pseudo-curly top 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: the United States of America.

Host of Isolate and Habitat Details
Source of isolate: Lycopersicon esculentum.

Natural host and symptoms
Lycopersicon esculentum — chlorosis (especially at leaf edges), vein-clearing, leaf curling and cupping and shoot proliferation. Plants often severely stunted and set few fruit.

Ambrosia sp., Solanum nigrum — vein-clearing and leaf rolling.

Reference to Isolation Report
Giddings et al. (1951).

Details on Isolate Sequencing

Genome codes 6 units.

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: 00.029.0.04.001. Virus accession number: 29004001. Obsolete virus code: 00.029.0.02.004.; 29.0.2.T.003; superceded accession number: 2902004; 2902t003.
NCBI Taxon Identifier NCBI Taxonomy ID: 49267.

Name, Synonyms and Lineage

ICTV approved acronym: TPCTV. Virus is an ICTV approved species of the genus 00.029.0.04. Topocuvirus in the family 00.029. Geminiviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid is elongated and exhibits icosahedral symmetry. The capsid is geminate and has a diameter of 18 nm. With a length of 30 nm.

Nucleic Acid

The genome is not segmented and contains a single molecule of circular, ambisense, single-stranded DNA. The complete genome is 2860 nucleotides long.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Lipids

Lipids are not reported.

Antigenicity

The virus is serologically related to beet curly top virus.

Reported to have virions that are serologically related to those of beet curly top virus, however this virus is transmitted by the treehopper Micrutalis malleifera (Hemiptera: Membracidae) and fails to infect Beta vulgaris, whereas beet curly top virus is transmitted by the leafhopper Circulifer tenellus (Hemiptera: Cicadellidae).

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 Lycopersicon esculentum (tomato) [TaxID 4081].

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is not transmitted by mechanical inoculation; not transmitted by seeds.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Membracidae; Micrutalis malleifera. Virus is not transmitted by Acutalis sp., Micrutalis clava, Spissistilus festinus. Virus is transmitted in a semi-persistent manner; retained when the vector moults.

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 Compositae, Solanaceae. The following species were susceptible to experimental virus infection: Ambrosia, Datura stramonium, Lactuca sativa, Lycopersicon esculentum, Nicotiana glutinosa, Nicotiana x edwardsonii, Solanum melongena, Solanum nigrum.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Apocynaceae, or Chenopodiaceae, Compositae, Cucurbitaceae, Leguminosae-Papilionoideae, Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Beta vulgaris, Capsicum annuum, Catharanthus roseus, Chenopodium ambrosioides, Cucumis sativus, Cucurbita pepo, Gomphrena globosa, Nicotiana tabacum, Petunia x hybrida, Phaseolus vulgaris, Physalis floridana, Solanum melongena, Zinnia elegans.

Diagnostic Hosts

Diagnostic host species and symptoms:

Ambrosia sp., Datura stramonium, Lactuca sativa, Lycopersicon esculentum, Nicotiana glutinosa, N. x edwardsonii, Solanum melongena, Solanum nigrum — systemic vein-clearing, chlorosis, leaf rolling or cupping and plant stunting. Diagnostic host: insusceptible host species Beta vulgaris, Capsicum annuum, Cucumis sativus, Nicotiana tabacum, Solanum melongena.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Lycopersicon esculentum, Nicotiana x edwardsonii, Solanum nigrum.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Lycopersicon esculentum (W), Solanum nigrum (W).

References to host data: Simons (1962a).

Histopathology: Virus can be best detected in leaves. Virions are found in the nucleus.

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

Geographical Distribution

The virus occurs in the United States of America (Florida).

Ecology, Epidemiology and Control

Studies reported by Tsai and Brown (1991).

References

Bennett, CW (1971). Am. Phytopathol. Soc. Monog. 7, 81 pp.

Christie, R.G., Ko, N.-J., Flak, BW., Hiebert, E., Lastra, R., Bird, J. and Kim, K.S. (1986). Phytopathology 76: 124.

Giddings, N.J., Bennett, CW and Harrison, AL. (1951). Phytopathology 41: 415.

McDaniel, L.L. and Tsai, J.H. (1990). Plant Dis. 74: 17.

Simons, J.N. (1962a). J. econ. Ent. 55: 358.

Simons, J.N. (1962b). J. econ. Ent. 55: 363.

Simons, J.N. and Coe, DM (1958). Virology 6: 43.

Tsai, J.H. and Brown, L.G. (1991). Fla Dep. Agric. and Consumer Serv., Plant Path. Circ. No. 344, 2 pp.

Zitter, T.A. and Tsai, J.H. (1981). Plant Dis. 65: 787.

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 835 by A.A. Brunt, 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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