Mostrar el registro sencillo del ítem

dc.contributor.author
Zodrow, Erwin L.
dc.contributor.author
D`angelo, José Alejandro
dc.contributor.author
Cleal, Christopher J.
dc.date.available
2018-11-08T14:14:48Z
dc.date.issued
2017-11
dc.identifier.citation
Zodrow, Erwin L.; D`angelo, José Alejandro; Cleal, Christopher J.; 3D chemometric model and frond architecture of Alethopteris ambigua (Medullosales): Implications for reconstruction and taxonomy; E Schweizerbartsche Verlags; Palaeontographica Abteilung B; 295; 4-6; 11-2017; 91-133
dc.identifier.issn
0375-0299
dc.identifier.uri
http://hdl.handle.net/11336/63952
dc.description.abstract
The postulated relationship between chemistry and frond architecture is further tested based on a 450 mm frond segment Alethopteris ambigua Lesquereux pars from the Sydney Coalfield (Canada), this being the largest specimen known for this species. Micromorphology demonstrated amphistomatic rachides with larger anomocytic stomata than on the hypostomatic pinnules, and rachial epidermal cells that are irregularly elongate to polygonal-rectangular, intermingled with more rectangular isodiametric cells, with hardly any change over the segment. Functional groups or chemical structural groups, however, are continuously variable over the frond segment, allowing meaningful comparisons between frond parts. Based on these data, a three-dimensional “model” is derived which explains the relationship between the frond architecture and changes in chemical structural groups. Furthermore, the aromatic-rich compounds correlate with robust and stiffer proximal frond parts, whereas the aliphatic-rich compounds correlate with the slender and flexible distal parts. The former reflects lignin-related compounds in the basal part of the frond, and the latter tannin and resin-like chemicals as secondary metabolites in pinnules and midveins as the defense against herbivory. Strengthening the relationship between the hypothesized fossil chemistry-frond architecture is the testable prediction of chemistry of the “missing parts” in the likely quadripinnate A. ambigua frond, i.e. the petiole, frond bifurcation, and their adjacent proximal and most robust parts.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
E Schweizerbartsche Verlags
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Alethopteris
dc.subject
Frond
dc.subject
Cuticles
dc.subject
Chemistry
dc.subject
Carboniferous
dc.subject
Ftir
dc.subject
Chemometrics
dc.subject
Chemical Composition
dc.subject.classification
Meteorología y Ciencias Atmosféricas
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
3D chemometric model and frond architecture of Alethopteris ambigua (Medullosales): Implications for reconstruction and taxonomy
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-23T14:43:15Z
dc.identifier.eissn
2194-900X
dc.journal.volume
295
dc.journal.number
4-6
dc.journal.pagination
91-133
dc.journal.pais
Alemania
dc.journal.ciudad
Stuttgart
dc.description.fil
Fil: Zodrow, Erwin L.. Coxheath Road; Canadá
dc.description.fil
Fil: D`angelo, José Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Cleal, Christopher J.. National Museum Wales; Reino Unido
dc.journal.title
Palaeontographica Abteilung B
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1127/palb/295/2017/91
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/palb/detail/295/88245/3D_chemometric_model_and_frond_architecture_of_Ale?af=crossref


Archivos asociados

Documento no disponible

Comunidades y colecciones

Mostrar el registro sencillo del ítem