Evidence for the plant-specific intercellular transport of the Arabidopsis copper chaperone CCH
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/36080
comunitat-uji-handle3:10234/36082
comunitat-uji-handle4:
INVESTIGACIONEste recurso está restringido
http://dx.doi.org/10.1046/j.1365-313x.2001.00985.x |
Metadatos
Título
Evidence for the plant-specific intercellular transport of the Arabidopsis copper chaperone CCHFecha de publicación
2001-03Editor
WileyISSN
0960-7412Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://onlinelibrary.wiley.com/doi/10.1046/j.1365-313x.2001.00985.x/abstractVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Arabidopsis copper chaperone (CCH) belongs to a family of eukaryotic proteins that participates in intracellular copper homeostasis by delivering this metal to the secretory pathway. In this work we show that the CCH ... [+]
Arabidopsis copper chaperone (CCH) belongs to a family of eukaryotic proteins that participates in intracellular copper homeostasis by delivering this metal to the secretory pathway. In this work we show that the CCH protein is mainly located along the vascular bundles of senescing leaves and petioles, as shown by tissue prints and immunohistochemical detection. CCH protein also accumulates in stem sieve elements and is collected in phloem exudates. Accordingly, Arabidopsis CCH is the only member of the metallochaperone family described to function intercellularly to date. Moreover, the CCH protein remains stable when plants are subjected to excess copper that causes a rapid and specific decrease in its mRNA. These facts point to a role for CCH in copper mobilization from decaying organs towards reproductive structures, as a result of metalloprotein breakdown. [-]
Publicado en
The Plant Journal, v. 25, n. 5, p. 521–528Derechos de acceso
Copyright © 2001 Blackwell Science Ltd
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/restrictedAccess
Aparece en las colecciones
- MED_Articles [632]