Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Ourmiaviruses

Index

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

Nomenclature

ICTV reference

ICTV decimal code 79.0.P.4.

Definitive species

• Cassava Ivorian bacilliform ourmiavirus
• Epirus cherry ourmiavirus
• Melon Ourmia ourmiavirus
• Pelargonium zonate spot ourmiavirus

Tentative species

• Olive latent 2 (?) ourmiavirus

Host range and symptoms

Natural host range and symptoms

Symptoms persist (2/3), or disappear soon after infection (1/3).

Transmission

Virus transmitted by mechanical inoculation (4/4); transmitted by grafting (1/1); transmitted by seed (2/2); transmitted by pollen to the seed (1/1).

Experimental host range

Many (>9) families susceptible (1), or several (3-9) families susceptible (4).

Susceptible host species

• Abelmoschus esculentus (1)
• Apium graveolens (1)
• Beta vulgaris (1)
• Calendula officinalis (1)
• Callistephus chinensis (1)
• Capsicum annuum (1)
• Celosia cristata (2)
• Chenopodium amaranticolor (4)
• Chenopodium murale (1)
• Chenopodium quinoa
• Chrysanthemum segetum (1)
• Cicer arietinum (1)
• Cucumis melo (1)
• Cucumis metuliferus (1)
• Cucumis sativus (3)
• Cucurbita pepo (1)
• Cynara scolymus (1)
• Datura metel (1)
• Datura stramonium (2)
• Dianthus barbatus (1)
• Diplotaxis erucoides (1)
• Glycine max (1)
• Gomphrena globosa
• Lactuca sativa (1)
• Luffa acutangula (2)
• Lupinus albus (1)
• Lycopersicon esculentum (3)
• Manihot esculenta (1)
• Momordica balsamina (1)
• Nicotiana benthamiana (4)
• Nicotiana clevelandii
• Nicotiana debneyi (1)
• Nicotiana glutinosa (2)
• Nicotiana megalosiphon (3)
• Nicotiana rustica (2)
• Nicotiana tabacum
• Ocimum basilicum (1)
• Olea europaea (1)
• Pelargonium zonale (1)
• Petunia × hybrida (4)
• Phaseolus vulgaris (4)
• Phlox drummondii (1)
• Physalis floridana (1)
• Pisum sativum (1)
• Prunus avium (1)
• Raphanus sativus (1)
• Senecio cruentus (1)
• Spinacia oleracea (2)
• Tetragonia tetragonioides (2)
• Vicia faba (3)
• Vigna radiata (3)
• Vigna unguiculata (3)
• Zinnia elegans (1)

Insusceptible host species

• Allium cepa (1)
• Apium graveolens (1)
• Brassica campestris ssp. rapa (1)
• Brassica oleracea (1)
• Brassica oleracea var. botrytis (1)
• Brassica oleracea var. capitata (1)
• Callistephus chinensis (1)
• Capsicum annuum (1)
• Capsicum frutescens (1)
• Catharanthus roseus (2)
• Citrullus lanatus (1)
• Coriandrum sativum (1)
• Cucumis melo (1)
• Cucumis metuliferus (1)
• Cucumis sativus (2)
• Cucurbita maxima (2)
• Cucurbita pepo (2)
• Datura stramonium (3)
• Daucus carota (1)
• Helianthus annuus (1)
• Lactuca sativa (1)
• Lens culinaris (1)
• Lycopersicon chilense (1)
• Lycopersicon esculentum (1)
• Medicago sativa (1)
• Nicotiana benthamiana (1)
• Nicotiana debneyi (1)
• Nicotiana glutinosa (2)
• Nicotiana rustica (1)
• Ocimum basilicum (3)
• Pastinaca sativa (1)
• Petroselinum crispum (1)
• Physalis floridana (1)
• Pisum sativum (3)
• Raphanus sativus (1)
• Solanum melongena (2)
• Solanum tuberosum (2)
• Trifolium repens (1)
• Vicia faba (1)
• Vigna unguiculata (1)
• Zea mays (1)
• Zinnia elegans (2)

Families containing susceptible hosts

• Amaranthaceae
• Caryophyllaceae (1)
• Chenopodiaceae
• Compositae (4)
• Cruciferae (2)
• Cucurbitaceae (3)
• Euphorbiaceae (1)
• Geraniaceae (1)
• Labiatae (1)
• Leguminosae-Papilionoideae
• Malvaceae (1)
• Oleaceae (1)
• Polemoniaceae (1)
• Rosaceae (1)
• Solanaceae
• Tetragoniaceae (2)
• Umbelliferae (1)

Families containing insusceptible hosts

• Alliaceae (1)
• Apocynaceae (2)
• Compositae (3)
• Cruciferae (3)
• Cucurbitaceae (3)
• Gramineae (1)
• Labiatae (3)
• Leguminosae-Papilionoideae (4)
• Solanaceae
• Umbelliferae (2)

Physical and biochemical properties

Properties of particles in sap

TIP: 40-56-80 °C. LIV: 0.3-14.32-35 days. DEP: log₁₀ minus 2-3 (1), or 5-6 (2). Leaf sap contains few virions (1/3), or contains many virions (2/3).

Particle morphology

Virions bacilliform; not enveloped (3/3); 26-41.6-76 nm in length; 18-21.1-26 nm wide.

Physical properties

One sedimenting component in purified preparations (1), or two sedimenting components in purified preparations (2), or three sedimenting components in purified preparations (3), or four sedimenting components in purified preparations (1); sedimentation coefficient 82-100-118 S; of the other(s) 77-81-90 S. Density 1.286-1.35-1.375 g cm^-3 in CsCl. A₂₆₀/A₂₈₀ ratio 0.62-1.105-1.58.

Biochemical properties

Virions contain 15-19.25-25 % nucleic acid; 75-80.33-85 % protein; 0 % lipid.

Genome consists of RNA; single-stranded; linear (2/2). Total genome size 1.58-6.826-10.65 kb. Genome of two parts (1), or of three parts (3), or of four parts (1); largest (or only) genome part 0.91-3-4.4 kb; the 2nd largest 0.35-2.106-3.3 kb; the 3rd largest 0.32-1.625-2.73 kb; the 4th largest 2.1 kb. Infectivity retained when deproteinised with phenol or detergent (1/1). Additional factor not required for infectivity (1/1).

Features of the genome

Non-genomic nucleic acid found in the virions (1/1); is of unknown origin and function (1/1).

Features of proteins

Virion protein(s) one; M_r 21400-23340-26300.

Replication

Replication does not depend on a helper virus (1/1).

Cytopathology

Virions found in cytoplasm (2/2), or in nuclei (1/2), or in nucleoli (1/2). Inclusions absent from infected cells (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.