Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Cassia mild mosaic (?) carlavirus

Index

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

Data collated by M.T. Lin, 1983, revised E.W. Kitajima, 1991.

Nomenclature

Synonyms

cassia mottle carlavirus.

Acronym

CasMMV

ICTV decimal code

14.0.T.1.008

Host range and symptoms

Natural host range and symptoms

Symptoms vary cyclically over a few weeks.
• Cassia sylvestris - mild chlorosis.
• C. macranthera - chlorotic local lesions, vein clearing and interveinal chlorosis.

Transmission

Virus transmitted by mechanical inoculation; not transmitted by contact between plants; not transmitted by seed; not transmitted by pollen.

Geographical distribution

Spreads in Brazil.

Experimental host range

Few (<3) families susceptible. Experimentally infected plants mostly show necrotic or chlorotic local lesions, mosaics or chlorosis.

Diagnostically susceptible host species and symptoms

• Gomphrena globosa - necrotic local lesions; not systemic.
• Cassia coluteoides, C. sylvestris, C. macranthera - chlorotic local lesions; systemic chlorosis.
• C. obtusifolia, C. occidentalis - necrotic and chlorotic local lesions; systemic wilting, mosaic, interveinal chlorosis, pods and seeds abnormal.

Diagnostically insusceptible host species

Chenopodium amaranticolor, C. quinoa, Medicago sativa, Phaseolus vulgaris, Pisum sativum.

Maintenance and propagation hosts

Cassia obtusifolia, C. occidentalis.

Assay hosts (Local lesions or Whole plants)

Gomphrena globosa (L), Cassia obtusifolia (L), C. occidentalis (L).

Susceptible host species

• Apium graveolens
• Arachis hypogaea
• Brassica campestris ssp. rapa
• Brassica oleracea var. capitata
• Capsicum annuum
• Cassia coluteoides
• Cassia macranthera
• Cassia obtusifolia
• Cassia occidentalis
• Cassia sylvestris
• Chenopodium amaranticolor
• Chenopodium murale
• Chenopodium quinoa
• Cichorium endiva
• Citrullus lanatus
• Cucumis melo
• Cucumis sativus
• Cucurbita pepo
• Datura stramonium
• Glycine max
• Gomphrena globosa
• Helianthus annuus
• Lactuca sativa
• Lupinus albus
• Lupinus angustifolius
• Lycopersicon esculentum
• Medicago sativa
• Nicandra physalodes
• Nicotiana debneyi
• Nicotiana glutinosa
• Nicotiana sylvestris
• Nicotiana tabacum
• Phaseolus vulgaris
• Physalis floridana
• Pisum sativum
• Raphanus sativus
• Solanum melongena
• Solanum tuberosum
• Sonchus oleraceus
• Sorghum bicolor
• Tetragonia tetragonioides
• Vigna unguiculata
• Zea mays
• Zinnia elegans

Insusceptible host species

• Cassia occidentalis
• Chenopodium amaranticolor
• Chenopodium quinoa
• Gomphrena globosa
• Medicago sativa
• Phaseolus vulgaris
• Pisum sativum

Families containing susceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (3/3)
• Compositae (5/5)
• Cruciferae (3/3)
• Cucurbitaceae (4/4)
• Gramineae (2/2)
• Leguminosae-Caesalpinioideae (5/5)
• Leguminosae-Papilionoideae (8/8)
• Solanaceae (11 /11)
• Tetragoniaceae (1/1)
• Umbelliferae (1/1)

Families containing insusceptible hosts

• Amaranthaceae (1/1)
• Chenopodiaceae (2/3)
• Leguminosae-Caesalpinioideae (1/5)
• Leguminosae-Papilionoideae (3/8)

Sources of host-range data

Lin et al. (1977).

Physical and biochemical properties

Properties of particles in sap

TIP: 55-60 °C. DEP: log₁₀ minus 5-6. Leaf sap contains many virions.

Purification method

Veerisetty and Brakke (1978); Tremaine and Hamilton (1983).

Particle morphology

Virions filamentous; not enveloped; usually flexuous; with a clear modal length; of 640 nm; 15 nm wide. Axial canal obscure. Basic helix obscure.

Cytopathology

Virions found in leaves; in cytoplasm. Inclusions present in infected cells; are unusual in shape; are loose aggregates of elongated virions up to 1m in size.

Taxonomy and relationships

Possible Carlavirus

Comments and References

References

• Lin, M.T., Kitajima, E.W., Cupertino, F.P. and Costa, C.L. (1977). Fitopatol. Bras. 2: 87.
• Lin, M.T., Kitajima, E.W., Cupertino, F.P. and Costa, C.L. (1977). Pl. Dis. Reptr 63: 501.
• Lin, M.T., Kitajima, E.W. and Costa, C.L. (1980). Plant Dis. 64: 587.
• Munro, D. (1981). Aust. Pl. Path. Soc. Newsl. 10: 61.
• Tremaine, J.H. and Hamilton, R.I. (1983). CMI/AAB Descr. Pl. Viruses No. 274, 3 pp.
• Veerisetty, V. and Brakke, M.K. (1978). Phytopathology 68: 59.

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.