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00.029.0.02. Curtovirus

Cite this publication as: ICTVdB Management (2006). 00.029.0.02. Curtovirus. 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

Classification

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

ICTVdB Virus Code: 00.029.0.02. Virus accession number: 029002GE. Obsolete virus code: 29.0.2.; superceded accession number: 29020000.
NCBI Taxon Identifier NCBI Taxonomy ID: 10813.

Name, Synonyms and Lineage

Synonym(s): Subgroup II geminivirus, Beet curly top virus group; hybrigeminivirus (VIDE). Virus is of 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. The capsid consists of 22 capsomers. With a length of 30 nm.






















Electron micrograph of Geminiviridae by R.G. Milne, Istituto di Virologia, CRN, Torino, Italy.

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

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.34 g cm-3. The thermal inactivation point (TIP) is at 80°C. The longevity in vitro (LIV) is 8 days. Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 3.

Nucleic Acid

The genome is not segmented and contains a single molecule of circular, ambisense, single-stranded DNA that forms a closed circle. The complete genome is 2500-3000 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.

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 CARYOPHYLLIDAE, or ASTERIDAE; Order Caryophyllales; Order Scrophulariales.

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

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

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Cicadellidae, Membracidae. Virus is transmitted in a semi-persistent manner, or in a persistent manner; retained when the vector moults; does not replicate in the vector; not transmitted congenitally to the progeny of the vector.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in many families, several families. Susceptible host species are found in the Family Amaranthaceae, Apocynaceae, Caryophyllaceae, Chenopodiaceae, Compositae, Convolvulaceae, Cruciferae, Cucurbitaceae, Euphorbiaceae, Labiatae, Leguminosae-Papilionoideae, Linaceae, Malvaceae, Papaveraceae, Phytolaccaceae, Polemoniaceae, Polygonaceae, Solanaceae, Tropaeolaceae, Umbelliferae, Violaceae. The following species were susceptible to experimental virus infection: Abelmoschus esculentus, Amaranthus caudatus, Amaranthus retroflexus, Ambrosia, Apium graveolens, Atriplex hortensis, Bellis perennis, Beta macrocarpa, Beta patellaris, Beta vulgaris, Brassica campestris ssp. rapa, Calendula officinalis, Capsella bursa-pastoris, Capsicum frutescens, Catharanthus roseus, Chenopodium album, Chenopodium amaranticolor, Chenopodium capitatum, Chenopodium murale, Cicer arietinum, Citrullus lanatus, Coriandrum sativum, Cucumis sativus, Cucurbita maxima, Cucurbita moschata, Cucurbita pepo, or Cucurbitaceae, Datura stramonium, Dianthus barbatus, Dianthus caryophyllus, Euphorbia marginata, Fagopyrum esculentum, Gomphrena globosa, Gossypium hirsutum, Ipomoea setosa, Lactuca sativa, Lathyrus odoratus, Linum usitatissimum, Lycopersicon esculentum, Matthiola incana, Medicago hispida, Medicago sativa, Melilotus albus, Nicotiana benthamiana, Nicotiana bigelovii (1), Nicotiana clevelandii, Nicotiana debneyi, Nicotiana glutinosa, Nicotiana rustica, Nicotiana sylvestris, Nicotiana tabacum, Nicotiana x edwardsonii, Papaver nudicaule, Petunia x hybrida, Phaseolus vulgaris, Phlox drummondii, Physalis floridana, Physalis peruviana, Phytolacca americana, Pisum sativum, Raphanus sativus, Ricinus communis, Salvia splendens, Senecio vulgaris, Solanum demissum, Solanum melongena, Solanum nigrum, Solanum tuberosum, Spinacia oleracea, Stellaria media, Trifolium hybridum, Trifolium incarnatum, Trifolium pratense, Trifolium repens, Tropaeolum majus, Vicia faba, Vicia sativa, Vicia villosa, Vigna angularis, Vigna unguiculata, Viola cornuta, Zinnia elegans.

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, Celosia argentea, Chenopodium ambrosioides, Cucumis sativus, Cucurbita pepo, Datura stramonium, Gomphrena globosa, Lycopersicon esculentum, Lycopersicon pimpinellifolium, Nicotiana tabacum, Petunia x hybrida, Phaseolus lunatus, Phaseolus vulgaris, Physalis floridana, Solanum melongena, Solanum tuberosum, Sonchus oleraceus, Zinnia elegans.

Geographical Distribution

The virus spreads in Africa, or Eurasia, or the Mediterranean, or North America, or South and Central Americas. The virus occurs in Argentina, or Bolivia, or Brazil, or Canada, or Costa Rica, or Cyprus, or Egypt, or India, or Iran, or Italy, or Mexico, or Puerto Rico, or Spain, or Turkey, or the United States of America, or Uruguay.

Taxonomic Structure of the Genus

Type species 00.029.0.02.001. Beet curly top virus .

Species in the Genus

List of Species in the Genus.

Tentative Species in the Genus

Tentative Species in the Genus.

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Briddon RW, Markham PG.

References

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

PubMed References.



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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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