Wettability and water uptake of holm oak leaf surfaces

Simple item page
dc.bibliographicCitation.endpage38es_ES
dc.bibliographicCitation.stpage1es_ES
dc.bibliographicCitation.titlePlant Physiologyen
dc.contributor.authorFernández, Victoriaes_ES
dc.contributor.authorSancho Knapik, Domingoes_ES
dc.contributor.authorGuzmán, Paulaes_ES
dc.contributor.authorPeguero Pina, José Javieres_ES
dc.contributor.authorKarabourniotis, Georgees_ES
dc.contributor.authorKhayet, Mohamedes_ES
dc.contributor.authorFasseas, Costases_ES
dc.contributor.authorHeredia Guerrero, José Alejandroes_ES
dc.contributor.authorHeredia Bayona, Antonioes_ES
dc.contributor.authorGil Pelegrín, Eustaquioes_ES
dc.date.accessioned2014-07-02T09:15:43Z
dc.date.available2014-07-02T09:15:43Z
dc.date.issued2014es_ES
dc.description.abstractPlant trichomes play important protective functions and may have a major influence on leaf surface wettability. With the aim of gaining insight into trichome structure, composition and function in relation to water-plant surface interactions, we analyzed the adaxial and abaxial leaf surface of Quercus ilex L. (holm oak) as model. By measuring the leaf water potential 24 h after the deposition of water drops on to abaxial and adaxial surfaces, evidence for water penetration through the upper leaf side was gained in young and mature leaves. The structure and chemical composition of the abaxial (always present) and adaxial (occurring only in young leaves) trichomes were analyzed by various microscopic and analytical procedures. The adaxial surfaces were wettable and had a high degree of water drop adhesion in contrast to the highly unwettable and water repellent abaxial holm oak leaf sides. The surface free energy, polarity and solubility parameter decreased with leaf age, with generally higher values determined for the abaxial sides. All holm oak leaf trichomes were covered with a cuticle. The abaxial trichomes were composed of 8% soluble waxes, 49% cutin, and 43% polysaccharides. For the adaxial side, it is concluded that trichomes and the scars after trichome shedding contribute to water uptake, while the abaxial leaf side is highly hydrophobic due to its high degree of pubescence and different trichome structure, composition and density. Results are interpreted in terms of water-plant surface interactions, plant surface physical-chemistry, and plant ecophysiologyen
dc.description.statusPublishedes_ES
dc.identifier.citationPlant Physiology, p. 1-38en
dc.identifier.issn0032-0889*
dc.identifier.urihttp://hdl.handle.net/10532/2585
dc.language.isoenes_ES
dc.relation.doi10.1104/pp.114.242040es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/*
dc.subject.agrovocQuercuses
dc.subject.agrovocRelaciones planta aguaes
dc.subject.agrovocRespuesta de la plantaes
dc.subject.otherrecursos forestales
dc.titleWettability and water uptake of holm oak leaf surfacesen
dc.typeJournal Contribution*
dc.type.refereedNon-Refereedes_ES
dc.type.specifiedArticlees_ES

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2014_147.pdf
Size:
1.34 MB
Format:
Adobe Portable Document Format
Download

Collections

Artículos científicos, técnicos y divulgativos