Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medull...

Autores
Zodrow, Erwin L.; D`angelo, José Alejandro; Al-Shraah, Ahmad
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
From seven of the eight studied coalified ovules (Trigonocarpus grandis: Sydney Coalfield, Canada) sufficient material could be macerated (Schulze's process) for histochemical investigation. This encompasses histological identification of the ovular structure/tissue components by methods of Nomarski phase-contrast microscopy, and determination of the chemical make-up by Fourier transform infrared (FTIR) spectroscopy. The generated data are then input for principal component analysis (PCA), based on the chemometric approach. Not included in PCA, but complementary to it, are data from pyrolysis gas chromatography/mass spectrometry (Py-GC/MS), powder X-ray diffraction, carbon 13 magnetic resonance analyses (13CNMR), and introducing mass spectrometric data of selected epidermal/nucellar and vitrain samples. Addressed amongst other questions are evolution of ovular chemical grouping which includes vitrain and cutin; if coalified ovules reflect optimally original Carboniferous seeds, and why; and can chemotaxonomy/systematics of medullosalean ovules be advanced through histochemistry? Demonstrably preserved in T. grandis are outer and inner integumentary epidermises, a double-walled nucellus with nucellar cuticles, and endospermous tissue. These structures are protected by tecta or nucellar cuticles. Molecular structures for epidermises and nucellii are probably not the same which is suggested by initial mass-spectrometric experiments. These “hard” parts are most resistant to diagenetic influences, correlating with aliphatic (lipid) composition, but facies changes influenced fossilization as in ovular molds/casts vitrain lost all its otherwise preserved tissues. This collectively suggests a narrow window of fossilizing conditions by coalification. Inferred from PCA are transitional changes, rather than sharp delineation, where the nucellus occupies a chemical composition intermediate between epidermis/cutin and the vitrain. Integumentary fibers, tectum, inorganic replacement of an epidermis, and some nucellar specimens are difficult to group by PCA. Nucellar material is probably suited for chemotaxonomic/systematic research because of the lipid chemistry.
Fil: Zodrow, Erwin L.. Cape Breton University. Carboniferous Palaeobiology Laboratory; Canadá
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. Cape Breton University. Carboniferous Palaeobiology Laboratory; Canadá
Fil: Al-Shraah, Ahmad. Memorial University Of Newfoundland. Department of Chemistry; Canadá
Materia
Medullosalean
Ovules
Coalified
Chemistry
M/Z Ratios
Preservation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/25535

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network_name_str CONICET Digital (CONICET)
spelling Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovulesZodrow, Erwin L.D`angelo, José AlejandroAl-Shraah, AhmadMedullosaleanOvulesCoalifiedChemistryM/Z RatiosPreservationhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1From seven of the eight studied coalified ovules (Trigonocarpus grandis: Sydney Coalfield, Canada) sufficient material could be macerated (Schulze's process) for histochemical investigation. This encompasses histological identification of the ovular structure/tissue components by methods of Nomarski phase-contrast microscopy, and determination of the chemical make-up by Fourier transform infrared (FTIR) spectroscopy. The generated data are then input for principal component analysis (PCA), based on the chemometric approach. Not included in PCA, but complementary to it, are data from pyrolysis gas chromatography/mass spectrometry (Py-GC/MS), powder X-ray diffraction, carbon 13 magnetic resonance analyses (13CNMR), and introducing mass spectrometric data of selected epidermal/nucellar and vitrain samples. Addressed amongst other questions are evolution of ovular chemical grouping which includes vitrain and cutin; if coalified ovules reflect optimally original Carboniferous seeds, and why; and can chemotaxonomy/systematics of medullosalean ovules be advanced through histochemistry? Demonstrably preserved in T. grandis are outer and inner integumentary epidermises, a double-walled nucellus with nucellar cuticles, and endospermous tissue. These structures are protected by tecta or nucellar cuticles. Molecular structures for epidermises and nucellii are probably not the same which is suggested by initial mass-spectrometric experiments. These “hard” parts are most resistant to diagenetic influences, correlating with aliphatic (lipid) composition, but facies changes influenced fossilization as in ovular molds/casts vitrain lost all its otherwise preserved tissues. This collectively suggests a narrow window of fossilizing conditions by coalification. Inferred from PCA are transitional changes, rather than sharp delineation, where the nucellus occupies a chemical composition intermediate between epidermis/cutin and the vitrain. Integumentary fibers, tectum, inorganic replacement of an epidermis, and some nucellar specimens are difficult to group by PCA. Nucellar material is probably suited for chemotaxonomic/systematic research because of the lipid chemistry.Fil: Zodrow, Erwin L.. Cape Breton University. Carboniferous Palaeobiology Laboratory; CanadáFil: 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. Cape Breton University. Carboniferous Palaeobiology Laboratory; CanadáFil: Al-Shraah, Ahmad. Memorial University Of Newfoundland. Department of Chemistry; CanadáElsevier Science2013-12-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25535Zodrow, Erwin L.; D`angelo, José Alejandro; Al-Shraah, Ahmad; Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules; Elsevier Science; International Journal Of Coal Geology; 122; 13-12-2013; 61-750166-5162CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0166516213002759info:eu-repo/semantics/altIdentifier/doi/10.1016/j.coal.2013.12.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:44:04Zoai:ri.conicet.gov.ar:11336/25535instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:44:05.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
title Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
spellingShingle Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
Zodrow, Erwin L.
Medullosalean
Ovules
Coalified
Chemistry
M/Z Ratios
Preservation
title_short Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
title_full Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
title_fullStr Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
title_full_unstemmed Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
title_sort Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules
dc.creator.none.fl_str_mv Zodrow, Erwin L.
D`angelo, José Alejandro
Al-Shraah, Ahmad
author Zodrow, Erwin L.
author_facet Zodrow, Erwin L.
D`angelo, José Alejandro
Al-Shraah, Ahmad
author_role author
author2 D`angelo, José Alejandro
Al-Shraah, Ahmad
author2_role author
author
dc.subject.none.fl_str_mv Medullosalean
Ovules
Coalified
Chemistry
M/Z Ratios
Preservation
topic Medullosalean
Ovules
Coalified
Chemistry
M/Z Ratios
Preservation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv From seven of the eight studied coalified ovules (Trigonocarpus grandis: Sydney Coalfield, Canada) sufficient material could be macerated (Schulze's process) for histochemical investigation. This encompasses histological identification of the ovular structure/tissue components by methods of Nomarski phase-contrast microscopy, and determination of the chemical make-up by Fourier transform infrared (FTIR) spectroscopy. The generated data are then input for principal component analysis (PCA), based on the chemometric approach. Not included in PCA, but complementary to it, are data from pyrolysis gas chromatography/mass spectrometry (Py-GC/MS), powder X-ray diffraction, carbon 13 magnetic resonance analyses (13CNMR), and introducing mass spectrometric data of selected epidermal/nucellar and vitrain samples. Addressed amongst other questions are evolution of ovular chemical grouping which includes vitrain and cutin; if coalified ovules reflect optimally original Carboniferous seeds, and why; and can chemotaxonomy/systematics of medullosalean ovules be advanced through histochemistry? Demonstrably preserved in T. grandis are outer and inner integumentary epidermises, a double-walled nucellus with nucellar cuticles, and endospermous tissue. These structures are protected by tecta or nucellar cuticles. Molecular structures for epidermises and nucellii are probably not the same which is suggested by initial mass-spectrometric experiments. These “hard” parts are most resistant to diagenetic influences, correlating with aliphatic (lipid) composition, but facies changes influenced fossilization as in ovular molds/casts vitrain lost all its otherwise preserved tissues. This collectively suggests a narrow window of fossilizing conditions by coalification. Inferred from PCA are transitional changes, rather than sharp delineation, where the nucellus occupies a chemical composition intermediate between epidermis/cutin and the vitrain. Integumentary fibers, tectum, inorganic replacement of an epidermis, and some nucellar specimens are difficult to group by PCA. Nucellar material is probably suited for chemotaxonomic/systematic research because of the lipid chemistry.
Fil: Zodrow, Erwin L.. Cape Breton University. Carboniferous Palaeobiology Laboratory; Canadá
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. Cape Breton University. Carboniferous Palaeobiology Laboratory; Canadá
Fil: Al-Shraah, Ahmad. Memorial University Of Newfoundland. Department of Chemistry; Canadá
description From seven of the eight studied coalified ovules (Trigonocarpus grandis: Sydney Coalfield, Canada) sufficient material could be macerated (Schulze's process) for histochemical investigation. This encompasses histological identification of the ovular structure/tissue components by methods of Nomarski phase-contrast microscopy, and determination of the chemical make-up by Fourier transform infrared (FTIR) spectroscopy. The generated data are then input for principal component analysis (PCA), based on the chemometric approach. Not included in PCA, but complementary to it, are data from pyrolysis gas chromatography/mass spectrometry (Py-GC/MS), powder X-ray diffraction, carbon 13 magnetic resonance analyses (13CNMR), and introducing mass spectrometric data of selected epidermal/nucellar and vitrain samples. Addressed amongst other questions are evolution of ovular chemical grouping which includes vitrain and cutin; if coalified ovules reflect optimally original Carboniferous seeds, and why; and can chemotaxonomy/systematics of medullosalean ovules be advanced through histochemistry? Demonstrably preserved in T. grandis are outer and inner integumentary epidermises, a double-walled nucellus with nucellar cuticles, and endospermous tissue. These structures are protected by tecta or nucellar cuticles. Molecular structures for epidermises and nucellii are probably not the same which is suggested by initial mass-spectrometric experiments. These “hard” parts are most resistant to diagenetic influences, correlating with aliphatic (lipid) composition, but facies changes influenced fossilization as in ovular molds/casts vitrain lost all its otherwise preserved tissues. This collectively suggests a narrow window of fossilizing conditions by coalification. Inferred from PCA are transitional changes, rather than sharp delineation, where the nucellus occupies a chemical composition intermediate between epidermis/cutin and the vitrain. Integumentary fibers, tectum, inorganic replacement of an epidermis, and some nucellar specimens are difficult to group by PCA. Nucellar material is probably suited for chemotaxonomic/systematic research because of the lipid chemistry.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-13
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/25535
Zodrow, Erwin L.; D`angelo, José Alejandro; Al-Shraah, Ahmad; Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules; Elsevier Science; International Journal Of Coal Geology; 122; 13-12-2013; 61-75
0166-5162
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25535
identifier_str_mv Zodrow, Erwin L.; D`angelo, José Alejandro; Al-Shraah, Ahmad; Morphology and histochemistry of coalified Trigonocarpus grandis (Sydney Coalfield, Canada): Implications for the preservation, chemotaxonomy, and evolution of Carboniferous medullosalean ovules; Elsevier Science; International Journal Of Coal Geology; 122; 13-12-2013; 61-75
0166-5162
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0166516213002759
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.coal.2013.12.008
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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