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00.069.0.01.003. Rice grassy stunt virus

Cite this publication as: ICTVdB Management (2006). 00.069.0.01.003. Rice grassy stunt 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 Philippines.

Host of Isolate and Habitat Details
Source of isolate: Oryza sativa.

Natural host and symptoms
Oryza sativa — severe stunting, excessive tillering, erect growth habit, short, narrow pale green leaves.

Reference to Isolation Report
Ribera et al. (1966).

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: 00.069.0.01.003. Virus accession number: 69001003. Obsolete virus code: 69.0.1.0.003; superceded accession number: 69010003.
NCBI Taxon Identifier NCBI Taxonomy ID: 66266.

Name, Synonyms and Lineage

Synonym(s): rice rosette Philippines virus, probably rice rosette virus (Bergonia et al., 1966; Gingery, 1988; Ling, 1972). ICTV approved acronym: RGSV. Virus is an ICTV approved species of the genus 00.069.0.01. Tenuivirus; not assigned to a family.

Virion Properties

Morphology

Virions consist of a nucleocapsid. Virus capsid is not enveloped. Capsid/nucleocapsid is elongated with helical symmetry. Virus preparations contain more than one particle component. The nucleocapsid is filamentous, flexuous, or circular; and segments have a length proportional to the size of their RNA and a width of 6 nm. The nucleocapsid is segmented.

Electron microscopic preparation and references: Virions difficult to detect in sap. Reference for electron microscopic methods: Hibino et al. (1985a; 1985b).

Physicochemical and Physical Properties

There are 3 sedimenting component(s) found in purified preparations. The longevity in vitro (LIV) is 0.5 days (12 hours). Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 2.

Nucleic Acid

The genome is segmented and consists of four segments of linear negative-sense and ambisense, single-stranded RNA. The complete genome is 15460 nucleotides long. RNA-1 is partially sequenced. RNA-2 is sequenced, but only an estimate is available, complete sequence is 3940 nucleotides long. RNA-3 is sequenced and complete sequence is about 3640 nucleotides long. RNA-4 has been sequenced, but only an estimate is provided, complete sequence is 3490 nucleotides long.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Structural Proteins: Reference to method of preparation: Hibino et al. (1985a).

Lipids

Lipids are not reported.

Antigenicity

The virus is serologically related to rice stripe virus. The virus does not show serological relationships to maize stripe and rice hoja blanca viruses.

Diagnostics and Reference Collections

The best tests for diagnosis are use combination of symptomatology, transmission tests using Nilaparvata lugens and serology.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms, Class Liliopsida (Monocotyledonae).

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; 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 Delphacidae; Nilaparvata bakeri, N. lugens, N. muiri. Virus is transmitted in a persistent manner; retained when the vector moults; replicates 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 few families. Susceptible host species are found in the Family Cyperaceae, Gramineae, Pontederiaceae. The following species were susceptible to experimental virus infection: Cynodon dactylon, Cyperus rotundus, Echinochloa colona, Leersia hexandra, Monochoria vaginalis, Oryza punctata, Oryza sativa.

Diagnostic Hosts

Diagnostic host species and symptoms:

Oryza sativa cv. Shan San Sa San — striping of leaves.

Oryza sativa cv. Taichung Native 1 — excess tillering, short, narrow pale green leaves.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Oryza sativa.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Oryza sativa (W).

References to host data: Ling (1979, Anjaneyulu et al. (1988).

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm and nucleus. Nuclear inclusion bodies are crystals. Cytoplasmic inclusions are crystals. Inclusions are bundles of fibrillar structures. Other cellular changes include occurrence of small spherical virions in sieve tubes and phloem cells (Pellegrini and Bassi, 1978, Shikata et al., 1980).

Geographical Distribution

The virus occurs in China, India, Indonesia, Japan, Malaysia, the Philippines, Sri Lanka, Taiwan, and Thailand.

Ecology, Epidemiology and Control

Studies reported by Khush and Ling (1974, Ling et al. (1976, Chen (1984).

List of Strains and Isolates in the Species

GSV1 and GSV2 in the Philippines, wilted stunt virus (GSW), grassy stunt B (GSV), grassy stunt Y (GSY) in Taiwan. GSV 2-like strains in India, Indonesia and Thailand.

References

Anjaneyulu, A, Daquioag, R.D., Mesina, M. E., Hibino, H., Lubigan. R.T. and Moody, K. (1988). Int. Rice Res. Newsl. 13: 37.

Bergonia, Capule, Novera and Calica (1966). Philipp. J. Pl. Ind. 31: 47.

Chen, C.C. (1984). Plant Prot. Bull. Taiwan 26: 315.

Chen, C.C. and Chiu, R.J. (1982). Plant Dis. 66: 15.

Gingery, R.E. (1988). In: The Plant Viruses Vol. 4, The Filamentous Plant Viruses, p. 302; ed. R.G. Milne. Plenum Press, New York.

Hibino, H. (1986). AAB Descr. Pl. Viruses No. 320, 5 pp.

Hibino, H., Iwasaki, M. and Izumi, K. (1982). Ann. Phytopath. Soc. Japan 48: 388.

Hibino, H., Usugi, T. and Tsuchizaki, T. (1983a). Int. Rice Res. Newsl. 8: 11.

Hibino, H., Usugi, T., Omura, T. and Shohara, K. (1983b). Int. Rice Res. Newsl. 8: 9.

Hibino, H., Cabauatan, P.Q., Omura, T. and Tsuchizaki, T. (1985a). Plant Dis. 69: 538.

Hibino, H., Usugi, T., Omura, T., Tsuchizaki, T., Shohara, K. and Iwasaki, M. (1985b). Phytopathology 75: 894.

Khush, G.S. and Ling, K.C. (1974). J. Hered. 65: 134.

Ling, K.C. (1972). Rice Virus Diseases. Los Banos, Philippines, Int. Rice Res. Inst.

Ling, K.C. (1979). Int. Rice Res. Inst., Los Banos, Philippines.

Ling, K.C., Aquieno, V.M. and Lee, S.H. (1976). Plant Dis. 54: 565.

Omura, T., Hibino, H., Usugi, T., Inoue, H., Morinaka, T., Tsurumachi, S., Ong, CA, Putta, M., Tsuchizaki, T. and Saito, Y. (1984). Plant Dis. 68: 374.

Pellegrini, S. and Bassi, M. (1978). Phytopath. Z. 92: 247.

Ribera, C.T., Ou, S.H. and Iida, T.T. (1966). Pl. Dis. Reptr 50: 453.

Shikata, E., Senboku, T. and Ishimizu, T. (1980). Proc. Japan Acad. 56, Ser. B: 89.

Toriyama, S. (1985). Ann. Phytopath. Soc. Japan 51: 59.

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 688 by H. Hibino, 1985. Revised 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 320.



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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.

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