English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/17440
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Different cation stresses affect specifically osmotic root hydraulic conductance, involving aquaporins, ATPase and xylem loading of ions in Capsicum annuum, L. plants

AuthorsCabañero, Francisco J. ; Carvajal, Micaela
Calcium stress
Root hydraulic conductance
Issue Date19-Oct-2007
CitationJournal of Plant Physiology 164(10): 1300-1310 (2007)
AbstractIn order to study the effect of nutrient stress on water uptake in pepper plants (Capsicum annuum L.), the excess or deficiency of the main cations involved in plant nutrition (K+, Mg2+, Ca2+) and two different degrees of salinity were related to the activity of plasma membrane H+-ATPase, the pH of the xylem sap, nutrient flux into the xylem (Js) and to a number of parameters related to water relations, such as root hydraulic conductance (L0), stomatal conductance (gs) and aquaporin activity. Excess of K+, Ca+ and NaCl produced a toxic effect on L0 while Mg2+ starvation produced a positive effect, which was in agreement with aquaporin functionality, but not with ATPase activity. The xylem pH was altered only by Ca treatments. The results obtained with each treatment could suggest that detection of the quality of the nutrient supply being received by roots can be related to aquaporins functionality, but also that each cation stress triggers specific responses that have to be assessed individually.
Publisher version (URL)http://dx.doi.org/10.1016/j.jplph.2006.08.010
Appears in Collections:(CEBAS) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.