English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/98497
Share/Impact:
Statistics
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:

Title

Down co-regulation of light absorption, photochemistry, and carboxylation in Fe-deficient plants growing in different environments

AuthorsLarbi, Ajmi ; Abadía Bayona, Anunciación ; Abadía Bayona, Javier ; Morales Iribas, Fermín
KeywordsPhotosynthesis down co-regulation
Pear
Peach
Fe deficiency
Apparent carboxylation efficiency
Photosystem II efficiency
Sugar beet
Xanthophyll cycle
Light absorption
Issue Date2006
PublisherSpringer
CitationPhotosynthesis Research 89 (2-3): 113-126 (2006)
AbstractThe regulation of photosynthesis through changes in light absorption, photochemistry, and carboxylation efficiency has been studied in plants grown in different environments. Iron deficiency was induced in sugar beet (Beta vulgaris L.) by growing plants hydroponically in controlled growth chambers in the absence of Fe in the nutrient solution. Pear (Pyrus communis L.) and peach (Prunus persica L. Batsch) trees were grown in field conditions on calcareous soils, in orchards with Fe deficiency-chlorosis. Gas exchange parameters were measured in situ with actual ambient conditions. Iron deficiency decreased photosynthetic and transpiration rates, instantaneous transpiration efficiencies and stomatal conductances, and increased sub-stomatal CO2 concentrations in the three species investigated. Photosynthesis versus CO 2 sub-stomatal concentration response curves and chlorophyll fluorescence quenching analysis revealed a non-stomatal limitation of photosynthetic rates under Fe deficiency in the three species investigated. Light absorption, photosystem II, and Rubisco carboxylation efficiencies were down-regulated in response to Fe deficiency in a coordinated manner, optimizing the use of the remaining photosynthetic pigments, electron transport carriers, and Rubisco. © 2006 Springer Science+Business Media B.V.
Publisher version (URL)http://dx.doi.org/10.1007/s11120-006-9089-1
URIhttp://hdl.handle.net/10261/98497
DOI10.1007/s11120-006-9089-1
Identifiersdoi: 10.1007/s11120-006-9089-1
issn: 0166-8595
e-issn: 1573-5079
Appears in Collections:(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
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.