Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Patchouli mosaic potyvirus

Index

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

Data collated by E.W. Kitajima, 1991.

Nomenclature

ICTV decimal code

57.0.1.DE.08

Host range and symptoms

Natural host range and symptoms

Symptoms persist.
• Pogostemon patchouli.

Transmission

Transmitted by a vector (probably); an insect (probably); Myzus persicae; Aphididae (probably). Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation.

Experimental host range

Several (3-9) families susceptible. Experimentally infected plants mostly show local lesions, then systemic chlorotic spots or mosaic.

Diagnostically susceptible host species and symptoms

• Chenopodium amaranticolor - local lesion with reddish halo.
• Zinnia elegans - mosaic.
• Nicotiana tabacum - systemic chlorotic spots.
• Bidens pilosa, Gomphrena globosa - symptomless.

Diagnostically insusceptible host species

Crotalaria juncea, Capsicum annuum, Datura stramonium, Phaseolus vulgaris, Petunia × hybrida.

Maintenance and propagation hosts

Zinnia elegans.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (L), Zinnia elegans, Nicotiana tabacum (W).

Susceptible host species

• Bidens pilosa
• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Gomphrena globosa
• Helianthus annuus
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana sylvestris
• Nicotiana tabacum
• Pogostemon patchouli
• Spinacia oleracea
• Zinnia elegans

Insusceptible host species

• Abelmoschus esculentus
• Apium graveolens
• Beta vulgaris
• Brassica campestris ssp. rapa
• Brassica oleracea var. capitata
• Capsicum annuum
• Coriandrum sativum
• Crotalaria juncea
• Dahlia pinnata
• Datura stramonium
• Daucus carota
• Galinsoga parviflora
• Glycine max
• Lactuca sativa
• Lycopersicon esculentum
• Nicandra physalodes
• Petunia × hybrida
• Phaseolus vulgaris
• Physalis floridana
• Raphanus sativus
• Solanum melongena
• Vigna unguiculata ssp. cylindrica

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (4/5)
• Compositae (3/6)
• Labiatae (1/1)
• Solanaceae (4/11)

Families containing insusceptible hosts

• Chenopodiaceae (1/5)
• Compositae (3/6)
• Cruciferae (3/3)
• Leguminosae-Papilionoideae (4/4)
• Malvaceae (1/1)
• Solanaceae (7/11)
• Umbelliferae (3/3)

Sources of host-range data

Gama (1979).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-60 °C. LIV: 16 days. DEP: log₁₀ minus 3-4. Leaf sap contains few virions.

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 720 nm; 15 nm wide. Axial canal obscure. Basic helix obscure.

Cytopathology

Virions found in leaves, mesophyll and the epidermis; in cytoplasm. Inclusions present in infected cells; are pinwheels.

Taxonomy and relationships

Potyvirus: Potyviridae

Best tests for diagnosis

Chenopodium amaranticolor develop local lesions; Nicotiana tabacum local and systemic chlorotic spots; and Zinnia elegans systemic mosaic.

Comments and References

References

• Gama, M.I.C.S. (1979). M.Sc. Dissertation, Univ. Brasilia.
• Gama, M.I.C.S., Lin, M.T., Costa, C.L., Pinto, A.D. and Kitajima, E.W. (1979). Fitopatol. Bras. 4: 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.