English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/7012
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:


Elemental 2-D mapping and changes in leaf iron and chlorophyll in response to iron re-supply in iron-deficient GF 677 peach-almond hybrid

AuthorsJiménez Tarodo, Sergio ; Morales Iribas, Fermín ; Abadía Bayona, Anunciación ; Abadía Bayona, Javier ; Moreno Sánchez, María Ángeles ; Gogorcena Aoiz, Yolanda
KeywordsInactive Iron
Iron Chlorosis
Iron Deficiency
Iron Re-supply
Leaf Iron Distribution
Issue Date2008
CitationPlant and Soil 315(1-2): 93-106 (2009)
AbstractIron is an essential micronutrient for plant growth and development, involved in key cellular processes. However, the distribution of Fe in plant tissues is still not well known. In the so-called Fe chlorosis paradox, leaves of fruit trees grown in the field usually have high concentrations of Fe but still are Fe-deficient. Leaves of the Prunus rootstock GF 677 (P. dulcis x P. persica) grown in hydroponics have been used to carry out two-dimensional (2-D) nutrient mapping by synchrotron radiation-induced X-ray fluorescence. Iron-deficient leaves accumulated more Fe in the midrib and veins, with Fe concentration being markedly lower in mesophyll leaf areas. The effects of Fe deficiency and Fe re-supply on leaf chlorophyll concentration and on the distribution of Fe and other nutrients within different plant tissues have been investigated in the same plants. After Fe re-supply, leaf Fe concentrations increased largely in all leaf types. However, whereas re-greening was almost completely achieved in apical leaves, in some expanded leaves the increase in chlorophyll concentration was only moderate. Therefore, after Fe re-supply Fe-deficient expanded leaves of the Prunus rootstock GF 677 had significant increases in Fe concentration but were still chlorotic. This is similar to what occurs in leaves of peach trees in field conditions, opening the possibility that this system could be used as a model to study the Fe chlorosis paradox.
DescriptionThe final version is available at: http://www.springerlink.com/content/b488124277300r27/fulltext.pdf
Publisher version (URL)http://dx.doi.org/10.1007/s11104-008-9735-9
Appears in Collections:(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
Jimenez_et_al_v_f16-6-08-final[1].pdf1,49 MBAdobe PDFThumbnail
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.