Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Guar symptomless potyvirus

Index

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

Data collated by G.M. Behncken, 1983.

Nomenclature

Acronym

GSLV

ICTV decimal code

57.0.1.T.040

Host range and symptoms

Natural host range and symptoms

Symptoms disappear soon after infection.
• Cyamopsis tetragonoloba - mild green mottle or symptomless.

Transmission

Transmitted by a vector; an insect; Myzus persicae; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; transmitted by seed (up to 70% in commercial seeds lots).

Geographical distribution

Probably distributed worldwide. Found, but with no evidence of spread, in Australia, India, Pakistan and the U.S.A.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor - necrotic local lesions.
• C. quinoa, Phaseolus vulgaris cv. Bountiful - chlorotic local lesions.
• Glycine soja, Macroptilium lathyroides - systemic mosaic.
• Macrotyloma uniflorum - necrotic local lesions and systemic lethal necrosis.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (L), Phaseolus vulgaris cv. Bountiful (L).

Susceptible host species

• Chenopodium album
• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Cyamopsis tetragonoloba
• Glycine soja
• Macroptilium lathyroides
• Macrotyloma uniflorum
• Phaseolus vulgaris
• Vigna unguiculata

Insusceptible host species

• Chenopodium foetidum
• Cucumis sativus
• Cucurbita maxima
• Lycopersicon esculentum
• Macrotyloma uniflorum
• Nicotiana clevelandii
• Nicotiana tabacum
• Pisum sativum
• Vicia faba

Families containing susceptible hosts

• Chenopodiaceae (4/5)
• Leguminosae-Papilionoideae (6/8)

Families containing insusceptible hosts

• Chenopodiaceae (1/5)
• Cucurbitaceae (2/2)
• Leguminosae-Papilionoideae (3/8)
• Solanaceae (3/3)

Sources of host-range data

Hansen and Lesemann (1978).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; of 760 nm; 12 nm wide.

Cytopathology

Virions found in all parts of the host plant; in cytoplasm. Inclusions present in infected cells; are pinwheels (of the scroll-type); they do not contain virions. Other cellular changes: cell wall proliferations and enlarged mitochondria.

Taxonomy and relationships

Potyvirus: Potyviridae

Comments and References

References

• Hansen, A.J. and Lesemann, D.E. (1978). Phytopathology 68: 841.

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.