Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Aster chlorotic stunt (?) carlavirus

Index

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

Data collated by L.W. Stobbs, 1991.

Nomenclature

ICTV decimal code

14.0.1.T.DE.1

Host range and symptoms

Natural host range and symptoms

Symptoms persist. Symptoms systemic chlorosis, stunting, chlorotic local lesions.
• Aster spp. - systemic chlorosis and stunting, curling of apical leaves, often elongated with necrotic flecking. Rosetting caused by shortened internodes; irregular chlorotic local lesions, often with necrotic centres, on basal leaves.

Transmission

Transmitted by a vector; an insect; Myzus persicae, Aphis gossypii; Aphididae. Transmitted in a non-persistent manner. Virus transmitted by mechanical inoculation; not transmitted by seed.

Geographical distribution

Spreads in the North American region; Canada (southern Ontario).

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show systemic chlorosis, stunting, chlorotic local lesions.

Diagnostically susceptible host species and symptoms

• Aster novae-angliae, A. novi-belgii - systemic chlorosis, necrotic flecking; stunting.
• Chenopodium amaranticolor, C. quinoa - chlorotic local lesions, vein-netting and chlorotic spotting.

Diagnostically insusceptible host species

Helenium autumnale, Impatiens walleriana, Dianthus barbatus, D. caryophyllus.

Maintenance and propagation hosts

Aster spp., Chenopodium amaranticolor, C. quinoa.

Assay hosts (Local lesions or Whole plants)

Chenopodium amaranticolor (W).

Susceptible host species

• Aster novae-angliae
• Aster novi-belgii
• Chenopodium amaranticolor
• Chenopodium quinoa

Insusceptible host species

• Achillea filipendulina
• Achillea ptarmica
• Ajuga reptans
• Althaea rosea
• Aurinia saxatilis var. compactum
• Begonia × tuberhybrida
• Callistephus chinensis
• Chrysanthemum maximum
• Coreopsis tinctoria
• Cucumis sativus
• Dahlia pinnata
• Datura stramonium
• Dianthus barbatus
• Dianthus caryophyllus
• Gazania rigens
• Gerbera jamesonii
• Gomphrena globosa
• Helenium autumnale
• Helianthus maximilianii
• Impatiens walleriana
• Iris pumila
• Liatris spicata
• Lycopersicon esculentum
• Myosotis scorpioides
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum
• Papaver nudicaule
• Pelargonium × domesticum
• Petunia × hybrida
• Phaseolus vulgaris
• Portulaca grandiflora
• Primula malacoides
• Salvia splendens
• Saxifraga cordifolia (Bergenia)
• Tagetes erecta
• Vigna unguiculata
• Zinnia elegans

Families containing susceptible hosts

• Chenopodiaceae (2/2)
• Compositae (2/15)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Balsaminaceae (1/1)
• Begoniaceae (1/1)
• Boraginaceae (1/1)
• Caryophyllaceae (2/2)
• Compositae (13/15)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Geraniaceae (1 /1)
• Iridaceae (1/1)
• Labiatae (2/2)
• Leguminosae-Papilionoideae (2/2)
• Malvaceae (1/1)
• Papaveraceae (1/1)
• Portulacaceae (1/1)
• Primulaceae (1/1)
• Saxifragaceae (1/1)
• Solanaceae (7 /7)

Sources of host-range data

Stobbs and van Schagen (1991).

Physical and biochemical properties

Properties of particles in sap

TIP: 50-60 °C. LIV: 5 days (at 25ºC). DEP: log₁₀ minus 6-7. Leaf sap contains many virions.

Purification method

Stobbs and van Schagen (1991).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 610-620 nm; 13 nm wide. Axial canal obvious. Basic helix obscure.

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 160 S. Density 1.29 g cm^-3 in sucrose. A₂₆₀/A₂₈₀ ratio 1.38 (»0.05).

Biochemical properties

Genome consists of RNA; single-stranded; linear. Total genome size 8 kb. Genome unipartite; largest (or only) genome part 8 kb. Infectivity retained when deproteinised with proteases; retained when deproteinised with phenol or detergent. Additional factor not required for infectivity.

Features of proteins

Virion protein(s) one; M_r 35400. Method of preparation: Stobbs and van Schagen (1991).

Cytopathology

Virions found in all parts of the host plant; in cytoplasm.

Taxonomy and relationships

Possible Carlavirus

Comments and References

References

• Stobbs, L.W. and van Schagen, J.G. (1991). Plant Dis. 75: 421.

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.