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Estimation of the solubility parameters of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions
Identificadores del recurso
http://oa.upm.es/13838/
Jatorria
(Archivo Digital UPM)

Fitxa

Izenburu:
Estimation of the solubility parameters of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions
Tema:
Biología
Bioquímica
Agricultura
Química
Física
Botánica
Deskribapen:
Background Most aerial plant parts are covered with a hydrophobic lipid-rich cuticle, which is the interface between the plant organs and the surrounding environment. Plant surfaces may have a high degree of hydrophobicity because of the combined effects of surface chemistry and roughness. The physical and chemical complexity of the plant cuticle limits the development of models that explain its internal structure and interactions with surface-applied agrochemicals. In this article we introduce a thermodynamic method for estimating the solubilities of model plant surface constituents and relating them to the effects of agrochemicals. Results Following the van Krevelen and Hoftyzer method, we calculated the solubility parameters of three model plant species and eight compounds that differ in hydrophobicity and polarity. In addition, intact tissues were examined by scanning electron microscopy and the surface free energy, polarity, solubility parameter and work of adhesion of each were calculated from contact angle measurements of three liquids with different polarities. By comparing the affinities between plant surface constituents and agrochemicals derived from (a) theoretical calculations and (b) contact angle measurements we were able to distinguish the physical effect of surface roughness from the effect of the chemical nature of the epicuticular waxes. A solubility parameter model for plant surfaces is proposed on the basis of an increasing gradient from the cuticular surface towards the underlying cell wall. Conclusions The procedure enabled us to predict the interactions among agrochemicals, plant surfaces, and cuticular and cell wall components, and promises to be a useful tool for improving our understanding of biological surface interactions.
Iturri:
Theoretical Biology and Medical Modelling, 2012-11-14, Vol. 9, No. 45
Idioma:
English
Harreman:
http://oa.upm.es/13838/1/Khayet_Fernandez_2012_AV.pdf
http://www.tbiomed.com/content/9/1/45/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1186/1742-4682-9-45
Autor/Productor:
Khayet, Mohamed
Fernandez Fernandez, Victoria
Argitaratzaile:
E.T.S.I. Montes (UPM)
Eskubideak:
(c) Editor/Autor
info:eu-repo/semantics/openAccess
Data:
2012-11-14
Tipo de recurso:
info:eu-repo/semantics/article
Artículo
PeerReviewed
Formatu:
application/pdf

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      1. <bibo:abstract datatype="http://www.w3.org/2001/XMLSchema#string">Background Most aerial plant parts are covered with a hydrophobic lipid-rich cuticle, which is the interface between the plant organs and the surrounding environment. Plant surfaces may have a high degree of hydrophobicity because of the combined effects of surface chemistry and roughness. The physical and chemical complexity of the plant cuticle limits the development of models that explain its internal structure and interactions with surface-applied agrochemicals. In this article we introduce a thermodynamic method for estimating the solubilities of model plant surface constituents and relating them to the effects of agrochemicals. Results Following the van Krevelen and Hoftyzer method, we calculated the solubility parameters of three model plant species and eight compounds that differ in hydrophobicity and polarity. In addition, intact tissues were examined by scanning electron microscopy and the surface free energy, polarity, solubility parameter and work of adhesion of each were calculated from contact angle measurements of three liquids with different polarities. By comparing the affinities between plant surface constituents and agrochemicals derived from (a) theoretical calculations and (b) contact angle measurements we were able to distinguish the physical effect of surface roughness from the effect of the chemical nature of the epicuticular waxes. A solubility parameter model for plant surfaces is proposed on the basis of an increasing gradient from the cuticular surface towards the underlying cell wall. Conclusions The procedure enabled us to predict the interactions among agrochemicals, plant surfaces, and cuticular and cell wall components, and promises to be a useful tool for improving our understanding of biological surface interactions.</bibo:abstract>

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      3. <bibo:issue>45</bibo:issue>

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      6. <bibo:volume>9</bibo:volume>

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      19. <dct:title datatype="http://www.w3.org/2001/XMLSchema#string">Estimation of the solubility parameters of model plant surfaces and agrochemicals: a valuable tool for understanding plant surface interactions</dct:title>

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