Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Furcraea necrotic streak (?) dianthovirus

Index

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

Data collated by A.A. Brunt, 1987. Revised by F.J. Morales and M. Castâno, 1992.

Nomenclature

Synonyms

cabuya necrotic streak mosaic virus.

Acronym

FNSV

ICTV decimal code

23.0.1.T.001

Host range and symptoms

Natural host range and symptoms

Symptoms persist. Symptoms chlorotic and necrotic streaks.
• Furcraea spp., Yucca spp. - chlorotic and then necrotic streaks.

Transmission

The virus may have a soil-inhabiting vector. Not transmitted by Planococcus citri, Saissetia caffea. Virus transmitted by mechanical inoculation; transmitted by grafting.

Geographical distribution

Spreads in Colombia.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Agave spp. - reddish streaks, necrosis.
• Furcraea spp. - chlorotic and necrotic streaking.

Diagnostically insusceptible host species

Phaseolus vulgaris, Physalis floridana, Nicotiana tabacum cv. White Burley, N. glutinosa, Chenopodium amaranticolor.

Maintenance and propagation hosts

Agave spp., Furcraea macrophylla.

Assay hosts (Local lesions or Whole plants)

Furcraea spp. (W).

Susceptible host species

• Agave
• Furcraea
• Furcraea macrophylla
• Yucca

Insusceptible host species

• Allium cepa
• Allium porrum
• Arachis hypogaea
• Avena sativa
• Brassica campestris ssp. rapa
• Chenopodium amaranticolor
• Chenopodium murale
• Colocasia esculenta
• Cucumis sativus
• Hordeum vulgare
• Hyoscyamus niger
• Lycopersicon esculentum
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana tabacum
• Phaseolus vulgaris
• Philodendron selloum
• Physalis floridana
• Pisum sativum
• Triticum aestivum
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Agavaceae (3/3)
• Amaryllidaceae (1/1)

Families containing insusceptible hosts

• Alliaceae (2/2)
• Araceae (2/2)
• Chenopodiaceae (2/2)
• Cruciferae (1/1)
• Cucurbitaceae (1/1)
• Gramineae (3/3)
• Leguminosae-Papilionoideae (5/5)
• Solanaceae (6/6)

Sources of host-range data

Dabek and Castano (1978).

Physical and biochemical properties

Properties of particles in sap

Leaf sap contains many virions.

Purification method

Gálvez et al. (1977).

Particle morphology

Virions isometric; not enveloped; 34 nm in diameter; angular in profile; with a conspicuous capsomere arrangement.

Physical properties

One sedimenting component in purified preparations. A₂₆₀/A₂₈₀ ratio 1.64.

Biochemical properties

Virions contain 28 % nucleic acid; 72 % protein.

Genome consists of RNA; single-stranded; linear. Total genome size 5.6 kb. Genome of two parts; largest (or only) genome part 4 kb; the 2nd largest 1.6 kb. Genomic nucleic acid isolated by Morales et al. (1992).

Features of proteins

Virion protein(s) one; M_r 40000; coat protein.

Cytopathology

Virions found in leaves, roots and the mesophyll; in cytoplasm. Inclusions present in infected cells; are unusual in shape; electron dense tubular inclusions; they contain virions.

Taxonomy and relationships

Dianthovirus

Virus(es) with serologically related virions

Red clover necrotic mosaic virus.

Virus(es) with serologically unrelated virions

Bean pod mottle, bean rugose mosaic, bean yellow stipple, carnation ringspot and southern bean mosaic viruses.

Additional comments on relationships

The genomic RNAs of this virus cross-hybridizes with cDNAs encoding the two genomic RNAs of red clover necrotic mosaic virus.

Comments and References

References

• Dabek, A.J. and Castâno, J.J. (1978). Phytopath. Z. 92: 57.
• Castâno, J.J. (1990). Fitopatol. Colombiana 14: 24.
• Gálvez, G.E., Castâno, M., Vesga, B. and Kitajima, E.W. (1976). Proc. Am. Phytopath. Soc. 3: 296.
• Gálvez, G.E., Castâno, M., Vesga, B. and Kitajima, E.W. (1977). Pl. Dis. Reptr 61: 1017.
• Morales, F.J., Castâno, M., Calvert, L.A. and Arroyave, S. (1992). J. Phytopath. 134: 247.

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.