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Title

Iron-dependent modifications of the flower transcriptome, proteome, metabolome, and hormonal content in an Arabidopsis ferritin mutant

AuthorsSudre, Damien; Gutiérrez Carbonell, Elaín ; Lattanzio, Giuseppe ; Rellán-Álvarez, Rubén ; Gaymard, Frédéric; Wohlgemuth, Gert; Fiehn, Oliver; Álvarez-Fernández, Ana ; Zamarreño, Ángel M.; Bacaicoa, Eva; Duy, Daniela; García Mina, José María; Abadía Bayona, Javier ; Philippar, Katrin; López-Millán, Ana Flor ; Briat, Jean François
KeywordsFerritin
Flowers
Functional genomics
Iron
Issue DateJul-2013
PublisherOxford University Press
CitationSudre D, Gutiérrez-Carbonell E, Lattanzio G, Rellán-Álvarez R, Gaymard F, Wohlgemuth G, Fiehn O, Álvarez-Fernández A, Zamarreño AM, Bacaicoa E, Duy D, García-Mina JM, Abadía J, Philippar K, López-Millán AF, Briat JF. Iron-dependent modifications of the flower transcriptome, proteome, metabolome, and hormonal content in an Arabidopsis ferritin mutant. Journal of Experimental Botany 64 (10): 2665-2688 (2013)
AbstractIron homeostasis is an important process for flower development and plant fertility. The role of plastids in these processes has been shown to be essential. To document the relationships between plastid iron homeostasis and flower biology further, a global study (transcriptome, proteome, metabolome, and hormone analysis) was performed of Arabidopsis flowers from wild-type and triple atfer1-3-4 ferritin mutant plants grown under iron-sufficient or excess conditions. Some major modifications in specific functional categories were consistently observed at these three omic levels, although no significant overlaps of specific transcripts and proteins were detected. These modifications concerned redox reactions and oxidative stress, as well as amino acid and protein catabolism, this latter point being exemplified by an almost 10-fold increase in urea concentration of atfer1-3-4 flowers from plants grown under iron excess conditions. The mutant background caused alterations in Fehaem redox proteins located in membranes and in hormone-responsive proteins. Specific effects of excess Fe in the mutant included further changes in these categories, supporting the idea that the mutant is facing a more intense Fe/redox stress than the wild type. The mutation and/or excess Fe had a strong impact at the membrane level, as denoted by the changes in the transporter and lipid metabolism categories. In spite of the large number of genes and proteins responsive to hormones found to be regulated in this study, changes in the hormonal balance were restricted to cytokinins, especially in the mutant plants grown under Fe excess conditions. © The Author 2013.
Description24 Pág., 2 Fig., 9 Tabl. The definitive version is available at: http://jxb.oxfordjournals.org/content/64/10/2665
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited
Publisher version (URL)http://dx.doi.org/10.1093/jxb/ert112
URIhttp://hdl.handle.net/10261/80219
DOI10.1093/jxb/ert112
Identifiersdoi: 10.1093/jxb/ert112
issn: 0022-0957
Appears in Collections:(EEAD) Artículos
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