Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Pea stem necrosis virus

Index

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

Data collated by K.T. Natsuaki, 1984.

Nomenclature

ICTV decimal code

79.0.P.DE.30

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Pisum sativum - yellowing, leaf and stem necrosis.

Transmission

Transmitted by a vector; a fungus; Olpidium spp; Plasmodiophorales. Virus transmitted by mechanical inoculation; not transmitted by contact between plants; transmitted by seed.

Geographical distribution

Spreads in Japan.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Gomphrena globosa, Chenopodium amaranticolor, Lathyrus odoratus, Phaseolus vulgaris - local lesions.
• Pisum sativum - systemic yellowing, necrosis.
• Sesamum indicum - local lesions.

Maintenance and propagation hosts

Pisum sativum.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (L), Pisum sativum (W).

Susceptible host species

• Chenopodium amaranticolor
• Gomphrena globosa
• Lathyrus odoratus
• Phaseolus vulgaris
• Pisum sativum
• Sesamum indicum

Insusceptible host species

• Lathyrus odoratus

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (1/1)
• Leguminosae-Papilionoideae (3/3)
• Pedaliaceae (1/1)

Families containing insusceptible hosts

• Leguminosae-Papilionoideae (1/3)

Sources of host-range data

Nakano et al. (1976).

Physical and biochemical properties

Properties of particles in sap

TIP: 70-75 °C. LIV: 2 days. Leaf sap contains many virions.

Purification method

Inouye et al. (1977).

Particle morphology

Virions isometric; not enveloped; 34 nm in diameter; rounded in profile; without a conspicuous capsomere arrangement.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 118 S.

Biochemical properties

Virions contain 15 % nucleic acid; 85 % protein.

Genome consists of RNA; single-stranded. Total genome size 1.4 kb. Genome unipartite; largest (or only) genome part 1.4 kb.

Features of proteins

Virion protein(s) one; M_r 35000.

Replication

Genome replicates in cytoplasm. Replication does not depend on a helper virus.

Cytopathology

Virions found in all parts of the host plant; in cytoplasm and in cell vacuoles. Inclusions absent from infected cells. Other cellular changes: vesicles in the cytoplasm.

Taxonomy and relationships

(ungrouped)

Virus(es) with serologically unrelated virions

Nepoviruses, tobacco necrosis, cucumber necrosis, satsuma dwarf and melon necrotic spot viruses.

Comments and References

References

• Inouye et al. (1977). Ann. Phytopath. Soc. Japan 43: 371.
• Nakano et al. (1976). Ann. Phytopath. Soc. Japan 42: 82.
• Osaki and Inouye (1982). Ann. Phytopath. Soc. Japan 48: 113.

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.