dc.creator | Quintero Ariza, José Manuel | es |
dc.creator | Fournier, José M. | es |
dc.creator | Benlloch, Manuel | es |
dc.creator | Ramos, José | es |
dc.date.accessioned | 2017-05-22T19:39:20Z | |
dc.date.available | 2017-05-22T19:39:20Z | |
dc.date.issued | 2001 | |
dc.identifier.citation | Quintero Ariza, J.M., Fournier, J.M., Benlloch, M. y Ramos, J. (2001). Glucose-induced activation of rubidium transport and water flux in sunflower root systems. Journal of Experimental Botany, 2001 (52 (354)), 99-104. | |
dc.identifier.issn | 1460-2431 | es |
dc.identifier.uri | http://hdl.handle.net/11441/60261 | |
dc.description.abstract | Excised 20-d-old sunflower roots (
Helianthusannuus
L. cv. Sun-Gro 393) were used to study the effect of
different sugars on rubidium and water fluxes. The
roots sensed and absorbed glucose from the external
medium inducing the activation of rubidium accu-
mulated in the root (Rb
q
root), the flux of exuded
rubidium (
J
Rb
) and, to a lesser degree, the exudation
rate (
J
v
). These effects were also triggered by
fructose, but not by 6-deoxyglucose (6-dG), a glucose
analogue which is not a substrate for hexokinase
(HXK). The effect of 2-deoxyglucose (2-dG), an
analogue that is phosphorylated but not further
metabolized, was complex, suggesting an inhibitory
effect on solute transport to the xylem. The amounts
of glucose required to activate rubidium and water
fluxes were similar to those previously reported
to regulate different processes in other plants
(0.5±10 mM). When sorbitol was used instead of
glucose, neither rubidium uptake (Rb
q
root plus
J
Rb
)
nor
J
v
was activated. It is proposed that glucose
present in the root plays an important signalling role
in the regulation of Rb
q
(K
q
) and water transport in
plant roots | es |
dc.description.sponsorship | Ministerio de Educación y Cultura PB98-102 | es |
dc.description.sponsorship | Ministerio de Educación y Cultura PB98-1036 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Society for Experimental Biology | es |
dc.relation.ispartof | Journal of Experimental Botany, 2001 (52 (354)), 99-104. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Exudation rate | es |
dc.subject | Helianthus annuus | es |
dc.subject | rubidium transport | es |
dc.subject | sunflower | es |
dc.title | Glucose-induced activation of rubidium transport and water flux in sunflower root systems | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ciencias Agroforestales | es |
dc.relation.projectID | PB98-102 | es |
dc.relation.projectID | PB98-1036 | es |
dc.relation.publisherversion | https://academic.oup.com/jxb/article/52/354/99/675972/Glucose-induced-activation-of-rubidium-transport | es |
dc.relation.publisherversion | https://academic.oup.com/jxb/issue | es |
dc.identifier.doi | 10.1093/jexbot/52.354.99 | es |
dc.contributor.group | Universidad de Sevilla. AGR188: Agronomia | es |
idus.format.extent | 6 p. | es |
dc.journaltitle | Journal of Experimental Botany | es |
dc.publication.volumen | 2001 | es |
dc.publication.issue | 52 (354) | es |
dc.publication.initialPage | 99 | es |
dc.publication.endPage | 104 | es |
dc.contributor.funder | Ministerio de Educación y Cultura (MEC). España | |