J u m p t o c o n t e n t
M a i n m e n u
M a i n m e n u
N a v i g a t i o n
● M a i n p a g e ● C o n t e n t s ● C u r r e n t e v e n t s ● R a n d o m a r t i c l e ● A b o u t W i k i p e d i a ● C o n t a c t u s ● D o n a t e
C o n t r i b u t e
● H e l p ● L e a r n t o e d i t ● C o m m u n i t y p o r t a l ● R e c e n t c h a n g e s ● U p l o a d f i l e
S e a r c h
Search
A p p e a r a n c e
● C r e a t e a c c o u n t ● L o g i n
P e r s o n a l t o o l s
● C r e a t e a c c o u n t ● L o g i n
P a g e s f o r l o g g e d o u t e d i t o r s l e a r n m o r e ● C o n t r i b u t i o n s ● T a l k
( T o p )
1 G e n o m e
2 R e p l i c a t i o n
3 T a x o n o m y
4 R e f e r e n c e s
5 E x t e r n a l l i n k s
T o g g l e t h e t a b l e o f c o n t e n t s
P o s p i v i r o i d a e
7 l a n g u a g e s
● C a t a l à ● E s p a ñ o l ● F r a n ç a i s ● I t a l i a n o ● 日 本 語 ● Р у с с к и й ● 中 文
E d i t l i n k s
● A r t i c l e ● T a l k
E n g l i s h
● R e a d ● E d i t ● V i e w h i s t o r y
T o o l s
T o o l s
A c t i o n s
● R e a d ● E d i t ● V i e w h i s t o r y
G e n e r a l
● W h a t l i n k s h e r e ● R e l a t e d c h a n g e s ● U p l o a d f i l e ● S p e c i a l p a g e s ● P e r m a n e n t l i n k ● P a g e i n f o r m a t i o n ● C i t e t h i s p a g e ● G e t s h o r t e n e d U R L ● D o w n l o a d Q R c o d e ● W i k i d a t a i t e m
P r i n t / e x p o r t
● D o w n l o a d a s P D F ● P r i n t a b l e v e r s i o n
I n o t h e r p r o j e c t s
● W i k i s p e c i e s
A p p e a r a n c e
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Viroid
Pospiviroidae
Cocadviroid
Coleviroid
Hostuviroid
Pospiviroid
The Pospiviroidae [1] incertae sedis viroids with 5 genera and 39 species , including the first viroid to be discovered, PSTVd , which is part of genus Pospiviroid .[2] biological activity . The classification of this family is based on differences in the conserved central region sequence.[3] Pospiviroidae replication occurs in an asymmetric fashion via host cell RNA polymerase , RNase , and RNA ligase . Its hosts are plants , specifically dicotyledons and some monocotyledons .
Members of the family Pospiviroidae have circular ssRNA of 246–375 nt. They assume rod-like or quasi-rod-like conformations containing a central conserved region (CCR) and a terminal conserved hairpin (TCH) or a terminal conserved region (TCR). The genome of viroids does not encode any proteins.[4]
Replication [ edit ]
Its replication is nuclear and mediated by DNA-dependent RNA polymerase II, which is redirected to use RNA templates through an asymmetric RNA–RNA rolling-circle mechanism. (+) polarity circRNA molecules (by convention the most abundant strand in vivo ) are repeatedly transcribed into oligomeric complementary (−) RNAs. Such intermediates serve as templates for generating oligomeric (+) RNAs that are cleaved by a host enzyme of the RNase III class. The termini of the resulting linear monomers are ligated by the host DNA ligase 1 to generate the mature circular viroid RNA.[4]
Taxonomy [ edit ]
Apscaviroid
Apple scar skin viroid
Apscaviroid aclsvd
Apscaviroid cvd-VII
Apscaviroid dvd
Apscaviroid glvd
Apscaviroid lvd
Apscaviroid plvd-I
Apscaviroid pvd
Apscaviroid pvd-2
Australian grapevine viroid
Citrus bent leaf viroid
Citrus dwarfing viroid
Citrus viroid V
Citrus viroid VI
Grapevine yellow speckle viroid 1
Grapevine yellow speckle viroid 2
Pear blister canker viroid
Cocadviroid
Coconut cadang-cadang viroid
Coconut tinangaja viroid
Hop latent viroid
Coleviroid
Coleus blumei viroid 2
Coleus blumei viroid 3
Coleviroid cbvd-5
Coleviroid cbvd-6
Hostuviroid
Hop stunt viroid
Pospiviroid
Citrus exocortis viroid
Columnea latent viroid
Iresine viroid 1
Pepper chat fruit viroid
Pospiviroid plvd
Potato spindle tuber viroid
Tomato apical stunt viroid
Tomato chlorotic dwarf viroid
Tomato planta macho viroid
References [ edit ]
^ Di Serio, F; Owens, RA; Li, SF; Matoušek, J; Pallás, V; Randles, JW; Sano, T; Verhoeven, JTJ; Vidalakis, G; Flores, R; ICTV Report Consortium (17 December 2020). "ICTV Virus Taxonomy Profile: Pospiviroidae " . The Journal of General Virology . 102 (2 ). doi :10.1099/jgv.0.001543 PMC 8116940 PMID 33331814 .
^ "Virus Taxonomy: 2022 Release" . International Committee on Taxonomy of Viruses (ICTV) . March 2023. Retrieved 20 August 2023 .
^ "ICTV Report Pospiviroidae" .
^ a b Francesco Di Serio, Robert A. Owens, Shi-Fang Li, Matoušek J, Pallás V, John W. Randles, Sano T, Jacobus Th. J. Verhoeven, Vidalakis G, Flores R (2020). "ICTV Virus Taxonomy Profile: Pospiviroidae " . J Gen Virol . 102 (2 ): 001543. doi :10.1099/jgv.0.001543 PMC 8116940 PMID 33331814 .
External links [ edit ]
Wikispecies : Pospiviroidae
CoL : 627NQ
EoL : 8048
EPPO : 1POSPF
GBIF : 1934
GRIN : 2965
iNaturalist : 1088139
IRMNG : 106552
NCBI : 185751
WoRMS : 734157
t
e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Pospiviroidae&oldid=1208552309 " C a t e g o r i e s : ● V i r o i d s ● V i r u s s t u b s H i d d e n c a t e g o r i e s : ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n i s d i f f e r e n t f r o m W i k i d a t a ● A r t i c l e s w i t h ' s p e c i e s ' m i c r o f o r m a t s ● W i k i p e d i a a r t i c l e s t h a t a r e t o o t e c h n i c a l f r o m A u g u s t 2 0 2 3 ● A l l a r t i c l e s t h a t a r e t o o t e c h n i c a l ● A l l s t u b a r t i c l e s
● T h i s p a g e w a s l a s t e d i t e d o n 1 7 F e b r u a r y 2 0 2 4 , a t 2 3 : 5 9 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
