Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Mulberry latent carlavirus

Index

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

Data collated by T. Tsuchizaki, 1987.

Nomenclature

Acronym

MLV

ICTV decimal code

14.0.1.0.019

Host range and symptoms

Natural host range and symptoms

• Morus alba - latent.

Transmission

Virus transmitted by mechanical inoculation; transmitted by grafting; not transmitted by seed (in Chenopodium quinoa).

Geographical distribution

Spreads in Japan.

Experimental host range

Several (3-9) families susceptible.

Diagnostically susceptible host species and symptoms

• Chenopodium quinoa - local and systemic chlorotic spotting, mosaic and malformation.
• C. amaranticolor - green ringspots; then symptomless systemic infection.

Diagnostically insusceptible host species

Vigna unguiculata, Glycine max, Cucumis sativus, Lycopersicon esculentum, Phaseolus spp.

Maintenance and propagation hosts

Morus alba (maintenance), Chenopodium quinoa (propagation).

Assay hosts (Local lesions or Whole plants)

Chenopodium quinoa (L and W).

Susceptible host species

• Beta vulgaris
• Chenopodium amaranticolor
• Chenopodium quinoa
• Gomphrena globosa
• Morus alba
• Nicotiana clevelandii
• Sesamum indicum
• Spinacia oleracea

Insusceptible host species

• Brassica campestris ssp. rapa
• Capsicum annuum
• Cucumis sativus
• Cucurbita maxima
• Datura stramonium
• Glycine max
• Humulus lupulus
• Lycopersicon esculentum
• Phaseolus vulgaris
• Pisum sativum
• Trifolium subterraneum
• Vicia faba
• Vigna unguiculata
• Vigna unguiculata ssp. sesquipedalis
• Zea mays
• Zinnia elegans

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (4/4)
• Moraceae (1/1)
• Pedaliaceae (1/1)
• Solanaceae (1/4)

Families containing insusceptible hosts

• Cannabidaceae (1/1)
• Compositae (1/1)
• Cruciferae (1/1)
• Cucurbitaceae (2/2)
• Gramineae (1/1)
• Leguminosae-Papilionoideae (7/7)
• Solanaceae (3/4)

Sources of host-range data

Tsuchizaki (1976).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-65 °C. LIV: 3-7 days (at 20ºC). DEP: log₁₀ minus 3-4. Leaf sap contains few virions.

Purification method

Tsuchizaki (1976).

Particle morphology

Virions filamentous; not enveloped; usually straight; with a clear modal length; of 700 nm; 12 nm wide. Axial canal obscure. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations.

Cytopathology

Virions found in mesophyll and epidermis; in cytoplasm. Inclusions absent from infected cells.

Taxonomy and relationships

Carlavirus

Virus(es) with serologically related virions

Carnation latent virus.

Best tests for diagnosis

Electron microscopic detection in sap possible.

Comments and References

References

• Tsuchizaki, T. (1976). Ann. Phytopath. Soc. Japan 42: 304.

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.