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Composition of cuticular waxes coating flag leaf blades and peduncles of Triticum aestivum cv. Bethlehem

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Composition of cuticular waxes coating flag leaf blades and peduncles of Triticum aestivum cv. Bethlehem

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dc.contributor.author Racovita, Radu C. es_ES
dc.contributor.author Hen-Avivi, Shelly es_ES
dc.contributor.author Fernández Moreno, Josefina Patricia es_ES
dc.contributor.author Granell Richart, Antonio es_ES
dc.contributor.author Aharoni, Asaph es_ES
dc.contributor.author Jetter, Reinhard es_ES
dc.date.accessioned 2017-09-18T09:32:39Z
dc.date.available 2017-09-18T09:32:39Z
dc.date.issued 2016-10
dc.identifier.issn 0031-9422
dc.identifier.uri http://hdl.handle.net/10251/87413
dc.description.abstract [EN] The work herein presents comprehensive analyses of the cuticular wax mixtures covering the flag leaf blade and peduncle of bread wheat (Triticum aestivum) cv. Bethlehem. Overall, Gas Chromatography Mass Spectrometry and Flame Ionization Detection revealed a wax coverage of flag leaf blades (16 mu g/cm(2)) a third that of peduncles (49 mu g/cm(2)). Flag leaf blade wax was dominated by 1-alkanols, while peduncle wax contained primarily beta-diketone and hydroxy-beta-diketones, thus suggesting differential regulation of the acyl reduction and beta-diketone biosynthetic pathways in the two analyzed organs. The characteristic chain length distributions of the various wax compound classes are discussed in light of their individual biosynthetic pathways and biosynthetic relationships between classes. Along with previously reported wheat wax compound classes (fatty acids, 1-alkanols, 1-alkanol esters, aldehydes, alkanes, beta-diketone, hydroxy-beta-diketones, alkylresorcinols and methyl alkylresorcinols), esters of 2-alkanols and three types of aromatic esters (benzyl, phenethyl and p-hydroxyphenethyl) are also reported. In particular, 2-heptanol esters were identified. Detailed analyses of the isomer distributions within 1-alkanol and 2-alkanol ester homologs revealed distinct patterns of esterified acids and alcohols, suggesting several wax ester synthases with very different substrate preferences in both wheat organs. Terpenoids, including two terpenoid esters, were present only in peduncle wax. (C) 2016 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship Generous financial support from the Natural Sciences and Engineering Research Council (Canada) Discovery Grant #2208738 and the Canada Foundation for Innovation Grant #201681 is gratefully acknowledged. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation Natural Sciences and Engineering Research Council (Canada) Discovery [2208738] es_ES
dc.relation Canada Foundation for Innovation [201681] es_ES
dc.relation.ispartof Phytochemistry es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Bread wheat es_ES
dc.subject Triticum aestivum es_ES
dc.subject Poaceae es_ES
dc.subject Cuticular wax es_ES
dc.subject Primary alcohols es_ES
dc.subject b-Diketones es_ES
dc.subject Chain length profiling es_ES
dc.subject 2-Alkanol esters es_ES
dc.subject Benzyl esters es_ES
dc.subject Phenethyl esters es_ES
dc.subject p-Hydroxy-phenethyl esters es_ES
dc.subject Wax ester metamers es_ES
dc.title Composition of cuticular waxes coating flag leaf blades and peduncles of Triticum aestivum cv. Bethlehem es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.phytochem.2016.05.003
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario de Conservación y Mejora de la Agrodiversidad Valenciana - Institut Universitari de Conservació i Millora de l'Agrodiversitat Valenciana es_ES
dc.description.bibliographicCitation Racovita, RC.; Hen-Avivi, S.; Fernández Moreno, JP.; Granell Richart, A.; Aharoni, A.; Jetter, R. (2016). Composition of cuticular waxes coating flag leaf blades and peduncles of Triticum aestivum cv. Bethlehem. Phytochemistry. 130:182-192. doi:10.1016/j.phytochem.2016.05.003 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.phytochem.2016.05.003 es_ES
dc.description.upvformatpinicio 182 es_ES
dc.description.upvformatpfin 192 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 130 es_ES
dc.relation.senia 331641 es_ES
dc.identifier.pmid 27264640


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