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dc.contributor.author
Lafuente Diaz, Maiten Amalia
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dc.contributor.author
del Fueyo, Georgina Marisa
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dc.contributor.author
Mendes, Mário Miguel
dc.date.available
2024-02-26T10:35:27Z
dc.date.issued
2023-12
dc.identifier.citation
Lafuente Diaz, Maiten Amalia; del Fueyo, Georgina Marisa; Mendes, Mário Miguel; Cuticle chemistry of the Cheirolepidiaceae Frenelopsis teixeirae from the Lower Cretaceous of Portugal. A case of study using ATR-FTIR spectroscopy; Elsevier Science; Review of Palaeobotany and Palynology; 319; 12-2023; 1-16
dc.identifier.issn
0034-6667
dc.identifier.uri
http://hdl.handle.net/11336/228279
dc.description.abstract
A Cheirolepidiaceae Frenelopsis teixeirae from the Lower Cretaceous of the Santa Susana Formation, near Torres Vedras locality (Estremadura region, western Portugal), is analyzed by means of Fourier Transform Infrared (FTIR) spectroscopy in Attenuated Total Reflection (ATR) mode at both micro and macro scales. This analytical technique (ATR-FTIR spectroscopy), which requires minimal sample preparation and a small amount of material, is used to evaluate the chemical composition of the F. teixeirae cuticles. For this, functional groups (i.e., specific groupings of atoms within molecules), that compose the complex chemical structure making up the F. teixeirae cuticles, are detected, analyzed, and interpreted from the resulting spectra. The Frenelopsis material comprises compressions of eighteen leafy axes with very well-preserved cuticles. Previously reported chemical information derived from transmission FTIR spectra of the foliar cuticle of the podocarp Squamastrobus tigrensis from the Lower Cretaceous of Argentina is used for comparison in order to assess the existence of a distinctive spectroscopic pattern for this Portuguese taxon. Semi-quantitative data derived from FTIR spectra of both fossil taxa were statistically analyzed using principal component analysis (PCA). The F. teixeirae cuticles have a lower contribution of C = O stretch and a lower degree of biopolymeric matrix cross-linking (higher CHal/C = O ratio) than those of S. tigrensis. Despite the existing differences between both conifers, spectroscopic patterns characterizing each fossil taxon are not fully distinctive from a chemotaxonomic perspective. This is mainly related to the relatively variable morphological cuticular features (e.g., trichomes) and to the biomacropolymeric chemistry among the leaves of each fossil taxon.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ATR-FTIR SPECTROSCOPY
dc.subject
CHEIROLEPIDIACEAE
dc.subject
CUTICLE CHEMISTRY
dc.subject
FRENELOPSIS
dc.subject
LOWER CRETACEOUS
dc.subject
PORTUGAL
dc.subject.classification
Paleontología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Cuticle chemistry of the Cheirolepidiaceae Frenelopsis teixeirae from the Lower Cretaceous of Portugal. A case of study using ATR-FTIR spectroscopy
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-09T14:51:32Z
dc.journal.volume
319
dc.journal.pagination
1-16
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Lafuente Diaz, Maiten Amalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: del Fueyo, Georgina Marisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Mendes, Mário Miguel. Universidad de Coimbra; Portugal
dc.journal.title
Review of Palaeobotany and Palynology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.revpalbo.2023.105001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666723001707?via%3Dihub
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