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Peroxiredoxin genes of Lotus japonicus: expression analysis in plants and hormone effects

AuthorsTovar-Méndez, Alejandro ; Bustos-Sanmamed, Pilar ; Sato, Shusei; Dietz, Karl-Josef; Cejudo, Francisco Javier ; Tabata, Satoshi; Becana Ausejo, Manuel
Issue DateJun-2010
PublisherSociedad Española de Fijación de Nitrógeno
CitationTovar-Méndez, A., Bustos Sanmamed, P., Sato, S., Dietz, K.J., Cejudo, F.J., Tabata, S., Becana, M., Peroxiredoxin genes of Lotus japonicus: expression analysis in plants and hormone effects. En: Biological Nitrogen Fixation and Plant-Associated Microorganisms. XIII SEFIN. XIII National Meeting of the Spanish Society of Nitrogen Fixation; II Portuguese-Spanish Congress on Nitrogen Fixation. Zaragoza (Spain), 15-18 June 2010 . S4-20, p. 219-220.
AbstractWe have identified nine genes encoding peroxiredoxins (Prxs) in the model legume Lotus japonicus. The genes belong to the typical four classes of Prxs found in plants: 1Cys (1C-Prx), 2Cys (C2-PrxA and C2-PrxB), PrxQ (PrxQ1, PrxQ2, and PrxQ3), and type II (PrxIIB/C, PrxIIE, and PrxIIF). All genes were found to be transcribed, except PrxQ3. The expression pattern among the various plant organs and tissues is gene specific, with some overlapping in genes of the same class. Additionally, we have assessed the response of Prx genes to treatments with classical hormones and related stress and signaling compounds in roots of hydroponically-grown plants. Most Prx genes, especially 1C-Prx, were responsive to indole-3-acetic acid (IAA) or cytokinins (CKs). There were limited and specific changes of Prx expression after plant treatment with abscisic acid (ABA), 1- aminocyclopropane-1-carboxylic acid (ACC), gibberellic acid (GA), or jasmonic acid (JA). The unique expression pattern for each Prx gene within the plant and the specific response of Prx expression to hormones support a non-redundant role for most of these genes.
Description2 Pag., 1 Tabl.
Appears in Collections:(EEAD) Comunicaciones congresos
(IBVF) Comunicaciones congresos
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