Viroids and Viroid-host interactions. (Articolo in rivista)

Type
Label
  • Viroids and Viroid-host interactions. (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1146/annurev.phyto.43.040204.140243 (literal)
Alternative label
  • Flores R.(1); Hernández C. (1).,; Martínez de Alba A.E.(1),; Daròs J.A. (1); F. Di Serio (2) (2005)
    Viroids and Viroid-host interactions.
    in Annual review of phytopathology (Print); Annual Reviews, Palo Alto (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Flores R.(1); Hernández C. (1).,; Martínez de Alba A.E.(1),; Daròs J.A. (1); F. Di Serio (2) (literal)
Pagina inizio
  • 117 (literal)
Pagina fine
  • 139 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://biblioproxy.cnr.it:2098/doi/pdf/10.1146/annurev.phyto.43.040204.140243 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 43 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Instituto de Biologia Molecular y Celular de Plantas, Universidad Politecnica-CSIC,Valencia, Spain. (2) Istituto di Virologia Vegetale del CNR, UOS di Bari, Italy (literal)
Titolo
  • Viroids and Viroid-host interactions. (literal)
Abstract
  • Although they induce symptoms in plants similar to those accompanying virus infections, viroids have unique structural, functional, and evolutionary characteristics. They are composed of a small, nonprotein-coding, single-stranded, circular RNA, with autonomous replication. Viroid species are clustered into the families Pospiviroidae and Avsunviroidae, whose members replicate (and accumulate) in the nucleus and chloroplast, respectively. Viroids replicate in three steps through an RNA-based rolling-circle mechanism: synthesis of longer-than-unit strands catalyzed by host RNA polymerases; processing to unit-length, which in the family Avsunviroidae is mediated by hammerhead ribozymes; and circularization. Within the initially infected cells, viroid RNA must move to its replication organelle, with the resulting progeny then invading adjacent cells through plasmodesmata and reaching distal parts via the vasculature. To carry out these movements, viroids must interact with host factors. The mature viroid RNA could be the primary pathogenic effector or, alternatively, viroids could exert their pathogenic effects via RNA silencing. (literal)
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