Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Rice grassy stunt tenuivirus

Index

• Nomenclature
• Host range, transmission and symptoms
• Physical and biochemical properties
• Taxonomy and relationships
• Comments and References

Data collated by H. Hibino, 1985. Revised 1989.

Nomenclature

Synonyms

rice rosette Philippines virus, probably rice rosette virus (Bergonia et al., 1966; Gingery, 1988; Ling, 1972).

Acronym

RGSV

Strains

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.

ICTV decimal code

69.0.1.0.003

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Oryza sativa - severe stunting, excessive tillering, erect growth habit, short, narrow pale green leaves.

Transmission

Transmitted by a vector; an insect; Nilaparvata bakeri, N. lugens, N. muiri; Delphacidae. Transmitted in a persistent manner. Virus retained when the vector moults; multiplies in the vector; not transmitted congenitally to the progeny of the vector; not transmitted by mechanical inoculation; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Ecology and control

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

Geographical distribution

Spreads in China, India, Indonesia, Japan, Malaysia, the Philippines, Sri Lanka, Taiwan, and Thailand.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible 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

Oryza sativa.

Assay hosts (Local lesions or Whole plants)

Oryza sativa (W).

Susceptible host species

• Cynodon dactylon
• Cyperus rotundus
• Echinochloa colona
• Leersia hexandra
• Monochoria vaginalis
• Oryza punctata
• Oryza sativa

Families containing susceptible hosts

• Cyperaceae (1/1)
• Gramineae (5/5)
• Pontederiaceae (1/1)

Sources of host-range data

Ling (1979); Anjaneyulu et al. (1988).

Physical and biochemical properties

Properties of particles in sap

LIV: 0.5 days (12 hours). DEP: log₁₀ minus 2. Electron microscopy: virions difficult to detect in sap.

Purification method

Hibino et al. (1985a; 1985b).

Particle morphology

Virions filamentous (often circular); not enveloped; of 950-1350 nm; 6 nm wide.

Physical properties

Three sedimenting components in purified preparations.

Biochemical properties

Genome consists of RNA; single-stranded; linear. Total genome size 15.46 kb. Genome of four parts; largest (or only) genome part 4.39 kb; the 2nd largest 3.94 kb; the 3rd largest 3.64 kb; the 4th largest 3.49 kb.

Features of proteins

Virion protein(s) one; M_r 31000. Method of preparation: Hibino et al. (1985a).

Cytopathology

Inclusions present in infected cells; are crystals in the cytoplasm, crystals in the nucleus, and unusual in shape; bundles of fibrillar structures. Other cellular changes: occurrence of small spherical virions in sieve tubes and phloem cells (Pellegrini and Bassi, 1978, Shikata et al., 1980).

Taxonomy and relationships

Tenuivirus

Virus(es) with serologically related virions

Rice stripe virus.

Virus(es) with serologically unrelated virions

Maize stripe and rice hoja blanca viruses.

Best tests for diagnosis

Use combination of symptomatology, transmission tests using Nilaparvata lugens and serology.

Comments and References

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, C.A., 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.

Cite this publication as: Brunt, A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., Watson, L. and Zurcher, E.J. (eds.) (1996 onwards). `Plant Viruses Online: Descriptions and Lists from the VIDE Database. Version: 20^th August 1996.' URL http://biology.anu.edu.au/Groups/MES/vide/

Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.