''Polerovirus'' is a genus of
viruses
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
Since Dmitri Ivanovsky's 1 ...
, in the family ''
Solemoviridae
''Solemoviridae'' is a family of non-enveloped, positive-strand RNA viruses which infect plants. ''Solemoviridae'' is a member of the order ''Sobelivirales''.
Structure
Member viruses are non-enveloped and have a viral capsid with T=3 symmet ...
''. Plants serve as natural hosts. There are 26 species in this genus. Diseases associated with this genus include: PLRV causes prominent rolling of the leaves of potato and a stiff upright habit of the plants; necrosis of the phloem and accumulation of carbohydrates in the leaves.
Taxonomy
The following species are recognized:
* ''
Beet chlorosis virus''
* ''
Beet mild yellowing virus''
* ''
Beet western yellows virus''
* ''
Carrot red leaf virus''
* ''
Cereal yellow dwarf virus RPS''
* ''
Cereal yellow dwarf virus RPV''
* ''
Chickpea chlorotic stunt virus''
* ''
Cotton leafroll dwarf virus''
* ''
Cucurbit aphid-borne yellows virus''
* ''
Faba bean polerovirus 1''
* ''
Maize yellow dwarf virus RMV''
* ''
Maize yellow mosaic virus''
* ''
Melon aphid-borne yellows virus''
* ''
Pepo aphid-borne mosaic virus''
* ''
Pepper vein yellows virus 1''
* ''
Pepper vein yellows virus 2''
* ''
Pepper vein yellows virus 3''
* ''
Pepper vein yellows virus 4''
* ''
Pepper vein yellows virus 5''
* ''
Pepper vein yellows virus 6''
* ''
Potato leafroll virus
Potato leafroll virus (PLRV) is a member of the genus ''Polerovirus'' and family ''Solemoviridae''. The phloem limited positive sense RNA virus infects potatoes and other members of the family Solanaceae. PLRV was first described by Quanjer ''e ...
''
* ''
Pumpkin polerovirus''
* ''
Suakwa aphid-borne yellows virus''
* ''
Sugarcane yellow leaf virus''
* ''
Tobacco vein distorting virus''
* ''
Turnip yellows virus''
Structure
Viruses in ''Polerovirus'' are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The diameter is around 23 nm. Genomes are linear and non-segmented, around 5.3-5.7kb in length.
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. Translation takes place by leaky scanning, −1 ribosomal frameshifting, and suppression of termination. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (plrv:
myzus persicae
''Myzus persicae'', known as the green peach aphid, greenfly, or the peach-potato aphid, is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the ...
). Transmission routes are vector and mechanical.
References
External links
Viralzone: ''Polerovirus''ICTV
{{Taxonbar, from=Q3394094
Virus genera