Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Satelliviruses

Index

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

Nomenclature

ICTV reference

ICTV decimal code 64.0.4.

Definitive species

• Maize white line mosaic satellivirus
• Panicum mosaic satellivirus
• Tobacco mosaic satellivirus
• Tobacco necrosis satellivirus

Transmission

Transmitted by a vector (1/1); a fungus (1/1); Chytridiales (1/1). Virus transmitted by mechanical inoculation (2/3), or not transmitted by mechanical inoculation (1/3); not transmitted by seed (2/2).

Experimental host range

Several (3-9) families susceptible (1/1).

Susceptible host species

• Capsicum annuum (1)
• Catharanthus roseus (1)
• Chenopodium amaranticolor (1)
• Chenopodium quinoa (1)
• Cucurbita pepo (1)
• Datura metel (1)
• Datura meteloides (1)
• Datura stramonium (1)
• Gomphrena globosa (1)
• Lycopersicon esculentum (1)
• Nicotiana benthamiana (1)
• Nicotiana clevelandii (2)
• Nicotiana glauca (1)
• Nicotiana glutinosa (1)
• Nicotiana rustica (1)
• Nicotiana sylvestris (1)
• Nicotiana tabacum (2)
• Panicum virgatum (1)
• Phaseolus vulgaris (1)
• Physalis floridana (1)
• Tulipa gesneriana (1)
• Zea mays (1)

Families containing susceptible hosts

• Amaranthaceae (1)
• Apocynaceae (1)
• Chenopodiaceae (1)
• Cucurbitaceae (1)
• Gramineae (2)
• Leguminosae-Papilionoideae (1)
• Liliaceae (1)
• Solanaceae (2)

Host range and symptoms

No data available.

Physical and biochemical properties

Properties of particles in sap

TIP: 95 °C.

Particle morphology

Virions isometric (3/3); not enveloped (3/3); 17 nm in diameter; rounded in profile (2/3), or neither clearly angular or nor rounded in profile (1/3); with a conspicuous capsomere arrangement (1/2), or without a conspicuous capsomere arrangement (1/2).

Physical properties

One sedimenting component in purified preparations; sedimentation coefficient 42-45.25-50 S. Density 1.355 g cm^-3 in CsCl. Isoelectric point pH 7. A₂₆₀/A₂₈₀ ratio 1.53-1.59-1.65.

Biochemical properties

Virions contain 20-22.5-25 % nucleic acid; 75-77.5-80 % protein.

Genome consists of DNA (1), or consists of RNA (3); single-stranded; linear (1/1). Total genome size 1.059-1.155-1.239 kb. Genome unipartite (3/3); largest (or only) genome part 1.059-1.155-1.239 kb. Base composition 22-23.7-24.4 % G; 26.1-27.3-29 % A; 20-21.15-22 % C; 25-27.6-29 % U. 5´ terminus of RNA has an unusual type (1/1). Infectivity retained when deproteinised with proteases (1/1); retained when deproteinised with phenol or detergent (1/1). Poly A region absent (1/1). Additional factor not required for infectivity (1/1).

NCBI sequence data (Entrez search)

Features of the genome

Non-genomic nucleic acid not found in the virions (1/1). Sub-genomic mRNA not found in infected cells (1/1). 1 virus specified dsRNA species found in infected cells. Size of largest virus specified dsRNA 1.1 kbp.

Features of proteins

Virion protein(s) one (3/3); M_r 17500-21730-24700.

Virus-coded non-virion proteins isolated (1/1); one protein found (1/1). M_r 68000.

Replication

Genome replicates in cytoplasmic viroplasms (1/1). Replication depends on co-infection with a helper virus (1/1).

Cytopathology

Virions found in cytoplasm (3/3). Inclusions present in infected cells (1/3), or absent from infected cells (2/3); are crystals in the cytoplasm (1/1), or viroplasms (1/1), or unusual in shape (1/1); they contain virions (1/1).

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.