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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/09/28 18:42:03」(JST)

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Ilarvirus is a genus of viruses, in the family Bromoviridae. Plants serve as natural hosts. There are currently 19 species in this genus including the type species Tobacco streak virus.^[1]^[2]

Taxonomy

Group: ssRNA(+)

Order: Unassigned

Family: Bromoviridae
- Genus: Ilarvirus
  American plum line pattern virus
  
  Apple mosaic virus
  
  Asparagus virus 2
  
  Blackberry chlorotic ringspot virus
  
  Blueberry shock virus
  
  Citrus leaf rugose virus
  
  Citrus variegation virus
  
  Elm mottle virus
  
  Fragaria chiloensis latent virus
  
  Humulus japonicus latent virus
  
  Lilac leaf chlorosis virus
  
  Lilac ring mottle virus
  
  Parietaria mottle virus
  
  Prune dwarf virus
  
  Prunus necrotic ringspot virus
  
  Spinach latent virus
  
  Strawberry necrotic shock virus
  
  Tobacco streak virus
  
  Tulare apple mosaic virus

^[2]

Structure

Viruses in Ilarvirus are non-enveloped, with icosahedral and Quasi-spherical geometries, and T=3 symmetry. The diameter is around 29 nm. Genomes are linear and segmented, tripartite.^[1]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Ilarvirus	Icosahedral	T=3	Non-enveloped	Linear	Segmented

Life cycle

Viral replication is cytoplasmic, and is lysogenic. 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, using the internal initiation model of subgenomic rna transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical and contact.^[1]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Ilarvirus	Plants	None	Viral movement; mechanical inoculation	Viral movement	Cytoplasm	Cytoplasm	Mechanical inoculation: insects; contact

References

^ ^a ^b ^c "Viral Zone". ExPASy. Retrieved 15 June 2015.
^ ^a ^b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

External links

Viralzone: Ilarvirus
ICTV

English Journal

PMID 27210549

Full-length M and L RNA sequences of tospovirus isolate 2009-GZT, which causes necrotic ringspot on tomato in China.

Zheng K1,2,3, Liu H4, Yin Y1,2,3, Chen TC5,6, Yeh SD7, Zhang Z1,2,3, Dong J8,9,10.
Archives of virology.Arch Virol.2016 May;161(5):1411-4. doi: 10.1007/s00705-016-2788-9. Epub 2016 Feb 18.
The virus isolate 2009-GZT, collected from tomato in Guizhou province of China, was identified as a new member of the genus Tospovirus based on its S RNA sequence. Because its provisional name, "tomato necrotic spot virus" (TNSV), was identical to an already existing member of the genus Ilarvirus, 2
PMID 26887969

Structural studies on tobacco streak virus coat protein: Insights into the pleomorphic nature of ilarviruses.

Gulati A1, Alapati K2, Murthy A1, Savithri HS2, Murthy MR3.
Journal of structural biology.J Struct Biol.2016 Feb;193(2):95-105. doi: 10.1016/j.jsb.2015.12.007. Epub 2015 Dec 17.
Tobacco streak virus (TSV), the type member of Ilarvirus genus, is a major plant pathogen. TSV purified from infected plants consists of a ss-RNA genome encapsidated in spheroidal particles with diameters of 27, 30 and 33nm constructed from multiple copies of a single species of coat protein (CP) su
PMID 26706030