Plant Viruses
Online 
Descriptions and Lists from
the VIDE Database
Furoviruses
Index
Nomenclature
ICTV reference
Definitive species
Tentative species
Host range and
symptoms
Natural host range and symptoms
Symptoms
persist (3/8), or vary seasonally (5/8).
Transmission
Transmitted by a vector (7/9), or means not
involving a vector (2/9); a fungus (7/7); Plasmodiophorales (6/6). Virus
transmitted by mechanical inoculation (11/11); transmitted by grafting (3/3);
transmitted by contact between plants (1/4), or not transmitted by contact
between plants (3/4); transmitted by seed (2/5), or not transmitted by seed
(3/5); not transmitted by pollen (1/1).
Experimental host range
Several (3-9) families
susceptible (7/11), or few (<3) families susceptible (4/11).
Susceptible host species
Insusceptible host
species
Families containing susceptible hosts
Families containing
insusceptible hosts
Physical and
biochemical properties
Properties of particles in sap
TIP:
45-61.83-80 °C. LIV: 1-531-4000 days. DEP: log10 minus 1 (1/8), or 2-3 (4/8),
or 4 (3/8), or 5 (1/8). Infectivity of sap not changed by treatment with
di-ethyl ether (1/1). Leaf sap contains few virions (8/10), or contains many
virions (2/10).
Particle morphology
Virions rod-shaped; not enveloped
(9/9); usually straight (11/11); with a clear modal length (8), or with no clear
modal length (3), or with clear modal lengths (1); of 65-236.7-532 nm;
18-20.16-25 nm wide. Axial canal obvious (10/11), or obscure (1/11); 4.5 nm in
diameter. Basic helix obvious (6/8), or obscure (2/8); pitch of basic helix
2.6-2.712-2.9 nm.
Physical properties
One sedimenting component in purified
preparations (1/9), or two sedimenting components in purified preparations
(4/9), or three sedimenting components in purified preparations (3/9), or four
sedimenting components in purified preparations (1/9), or five sedimenting
components in purified preparations (1/9), or six sedimenting components in
purified preparations (1/9), or eight sedimenting components in purified
preparations (1/9); sedimentation coefficient 155-206.8-236 S; of the
other(s) 15-150.3-183 S. Density 1.32-1.32-1.321 g cm-3 in CsCl.
Isoelectric point pH 3.4-5-6.45. A260/A280 ratio 1.2.
Biochemical properties
Virions contain 4-4.75-5 % nucleic
acid; 95-95.25-96 % protein; 0 % lipid.
Genome consists of RNA (10/10); single-stranded (10/10); linear (7/7).
Total genome size 9.7-11.16-13.5 kb. Genome unipartite (1/7), or of two parts
(5/7), or of four parts (1/7), or of five parts (1/7); largest (or only) genome
part 6.2-7.342-11 kb; the 2nd largest 3-3.916-5.3 kb; the 3rd largest 1.8 kb;
the 4th largest 1.5 kb; the 5th largest 1.45 kb. Base composition 24-24.25-24.5
% G; 26-27-28 % A; 15-17.5-20 % C; 27.5-30.75-34 % U. 5´ terminus of RNA has
a methylated nucleotide cap (1/1). Infectivity retained when deproteinised with
phenol or detergent (3/3). Poly A region present (1/2), or absent (1/2).
Additional factor not required for infectivity (1/1). Genome has no
tRNA-like activity (1/1).
Features of the genome
Non-genomic nucleic acid
found in the virions (1/4), or not found in the virions (3/4). Sub-genomic
mRNA found in infected cells (1/1). 3-3.5-4 virus specified dsRNA species
found in infected cells. Size of largest virus specified dsRNA 4.1 kbp; 2nd
largest 1.95 kbp; 3rd largest 1.68 kbp.
Features of proteins
Virion protein(s) one (7/7);
Mr 18500-20890-24500.
Virus-coded non-virion proteins identified by genomic sequence
analysis (1/1); seven proteins found (1/1). Mr 236900. Mr of
2nd largest 75000. Mr of 3rd 42000. Mr of 4th 31000.
Mr of 5th and smaller 25000.
Replication
Replication does not depend on a helper virus
(4/4).
Cytopathology
Virions found in cytoplasm (7/7), or in
cell vacuoles (1/7). Inclusions present in infected cells (5/8), or absent from
infected cells (3/8); are crystals in the cytoplasm (1/4), or amorphous
X-bodies (2/4), or membranous bodies (1/4), or viroplasms (1/4), or unusual
in shape (2/4); they contain virions (4/4).
Taxonomy and relationships
No data available.
Illustrations
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: 20th August 1996.' URL
http://biology.anu.edu.au/Groups/MES/vide/
Dallwitz (1980)
and
Dallwitz, Paine and Zurcher (1993)
should also be cited.
Please send comments, corrections and suggestions to:
vide-manager@biology.anu.edu.au
