ICTVdB Virus Description - 00.078.0.01.005. Groundnut rosette virus

Cite this publication as: ICTVdB Management (2006). 00.078.0.01.005. Groundnut rosette virus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA

chlorotic rosette — faint mottling of youngest leaflets, then yellowing, curling and malformation of leaflets, some veinbanding and blotching.

green rosette — mild mottling and flecking, but mostly dark green, severe stunting.

mosaic rosette — green blotching and severe chlorosis, but less severe rosetting than with green rosette. There are three components associated with all three rosette diseases;

1) Groundnut rosette assistor virus (GRAV): a luteovirus which gives no overt symptoms in groundnut.

2) Groundnut rosette virus: a virus with a single-stranded RNA genome, which becomes packaged in the GRAV virions, and thus depends on GRAV for aphid transmission, but produces no overt symptoms in groundnut.

3) Groundnut rosette satellites: satellite RNAs that control the symptoms and cause the different types of rosette (chlorotic, green and mosaic).

ICTVdB Virus Code: 00.078.0.01.005. Virus accession number: 78001005. Obsolete virus code: 78.0.1.0.004; superceded accession number: 78010004.
NCBI Taxon Identifier NCBI Taxonomy ID: 47740.

Name, Synonyms and Lineage

Morphology

Electron microscopic preparation and references: Reference for electron microscopic methods: Reddy et al. (1985).

Physicochemical and Physical Properties

Nucleic Acid

Proteins

Lipids

Virions are associated with helper virus and dependent on co-infection of helper virus during replication; it requires groundnut rosette assistor virus for aphid transmission, and the satellite RNA determines the symptoms. Virion acts as helper for a satellite virus; a helper for groundnut satellite RNA, which has regions of homology with the host DNA, and is 2.7kb.

Diagnostics and Reference Collections

Natural Host

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms, Class Magnoliopsida (Dicotyledonae).

Class Magnoliopsida (Dicotyledonae)
Subclass ROSIDAE; Order Fabales;
Family Fabaceae (~Leguminosae-Papilionoideae) Arachis hypogaea.

General Symptoms in Plants Virus affects the photosynthetic system. Symptoms are expressed in the leaf include stunting; include rosetting; include deformation of leaves. Symptoms in leaves include development of patterns or markings that are visible in the intercostal regions. Intercostal regions show malformation.

Severity and Occurrence of Disease

Transmission and Vector Relationships

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae. Virus is transmitted in a persistent manner; retained when the vector moults; does not replicate in the vector; not transmitted congenitally to the progeny of the vector; requires, for vector transmission, a helper virus (groundnut rosette assistor virus).

Experimental Hosts and Symptoms

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Apocynaceae, or Chenopodiaceae, Compositae, Cruciferae, Cucurbitaceae, or Leguminosae-Papilionoideae, Malvaceae, Solanaceae, Umbelliferae. Species inoculated with virus that do not show signs of susceptibility: Abelmoschus esculentus, Anthriscus cerefolium, Beta vulgaris, Brassica campestris, Calendula officinalis, Catharanthus roseus, Coriandrum sativum, Cucurbita pepo, Cyamopsis tetragonoloba, Datura stramonium, Daucus carota, Gomphrena globosa, Hyoscyamus niger, Lathyrus odoratus, Medicago sativa, Nicotiana glutinosa, Nicotiana tabacum, Pastinaca sativa, Petunia x hybrida, Phaseolus vulgaris, Physalis floridana, Pisum sativum, Vigna subterranea, Vigna unguiculata, Vigna unguiculata ssp. cylindrica, Zinnia elegans.

Diagnostic Hosts

Nicotiana clevelandii — necrotic rings, then systemic curling and malformation.

Diagnostic host: insusceptible host species Cucurbita pepo cv. Eyes, Pisum sativum, Phaseolus vulgaris cvs Black turtle soup, Bountiful, Great Northern and Pinto, Vigna unguiculata.

Maintenance and Propagation Hosts

Assay Hosts

References to host data: Okusanya and Watson (1966, Dubern (1980, Reddy et al. (1985).

Geographical Distribution

Ecology, Epidemiology and Control

Gibbons, R.W. (1977). In: Diseases Pests and Weeds in Tropical Crops, Groundnut rosette virus, p. 19; ed. P. Dorey. Verlag.

Reddy, D.V.R. (1984). In: Compendium of Peanut Diseases. Amer. Phytopath. Soc. Groundnut rosette virus, p. 51.

Reddy, D.V.R., Murant, AF and Duncan, GH (1985). Ann. appl. Biol. 107: 57.

Reddy, D.V.R., Raschke, J.H. and Mayo, MA (1985). Ann. appl. Biol. 107: 65.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 379 by D.V.R. Reddy, 1989. A description of the virus is found in DPV, a database for plant viruses developed by the Association of Applied Biologists (AAB), with the number 355.

The description has been generated automatically from DELTA files.

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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