Waikavirus

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Waikavirus
Virus classification OOjs UI icon edit-ltr.svg
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Picornavirales
Family: Secoviridae
Genus:Waikavirus

Waikavirus is a genus of viruses in the order Picornavirales , in the family Secoviridae . Plants, poaceae, cyperaceae, and gramineae serve as natural hosts. The genus contains 34 species, 33 of which are assigned to two subgenera with one unassigned to a subgenus. Diseases associated with this genus include: MCDV: plant stunting and chlorotic striping of tertiary leaf veins in maize. [1] [2]

Contents

Taxonomy

The genus contains the following species in the subgenus Actinidivirus : [2] [3]

The genus contains the following species in the subgenus Ritunrivirus : [2] [3]

Lastly, the species Waikavirus anthrisci (Anthriscus yellows virus) is unassigned to a subgenus. [2] [3]

Structure

Viruses in Waikavirus are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear, around 12kb in length. [1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
WaikavirusIcosahedralPseudo T=3Non-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants, poaceae, cyperaceae, and gramineae serve as the natural host. The virus is transmitted via a vector (insects). Transmission routes are vector and mechanical. [1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
WaikavirusGramineaePhloem; phloem parenchyma; bundle sheathViral movementViral movementCytoplasmCytoplasmMechanical innocuation: aphids; mechanical innocuation: leafhoppers

References

  1. 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. 1 2 3 4 "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 21 March 2025.
  3. 1 2 3 "Species List: Secoviridae". International Committee on Taxonomy of Viruses. Retrieved 21 March 2025.
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