Plant paralog to viral movement protein that potentiates transport of mRNA into the phloem.
Science
; 283(5398): 94-8, 1999 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-9872750
ABSTRACT
CmPP16 from Cucurbita maxima was cloned and the protein was shown to possess properties similar to those of viral movement proteins. CmPP16 messenger RNA (mRNA) is present in phloem tissue, whereas protein appears confined to sieve elements (SE). Microinjection and grafting studies revealed that CmPP16 moves from cell to cell, mediates the transport of sense and antisense RNA, and moves together with its mRNA into the SE of scion tissue. CmPP16 possesses the characteristics that are likely required to mediate RNA delivery into the long-distance translocation stream. Thus, RNA may move within the phloem as a component of a plant information superhighway.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Plantas
/
RNA Mensageiro
/
RNA de Plantas
/
Cucurbitaceae
Idioma:
En
Revista:
Science
Ano de publicação:
1999
Tipo de documento:
Article