Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.

<h4>Background</h4>Preservation of original organic components in fossils across geological time is controversial, but the potential such molecules have for elucidating evolutionary processes and phylogenetic relationships is invaluable. Chitin is one such molecule. Ancient chitin has be...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Patricia G Weaver, Larisa A Doguzhaeva, Daniel R Lawver, R Christopher Tacker, Charles N Ciampaglio, Jon M Crate, Wenxia Zheng
Formato: article
Lenguaje:EN
Publicado: Public Library of Science (PLoS) 2011
Materias:
R
Q
Acceso en línea:https://doaj.org/article/34af8173323748aeb3aceb54b2cc81ce
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:34af8173323748aeb3aceb54b2cc81ce
record_format dspace
spelling oai:doaj.org-article:34af8173323748aeb3aceb54b2cc81ce2021-11-18T07:33:34ZCharacterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.1932-620310.1371/journal.pone.0028195https://doaj.org/article/34af8173323748aeb3aceb54b2cc81ce2011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22132239/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Preservation of original organic components in fossils across geological time is controversial, but the potential such molecules have for elucidating evolutionary processes and phylogenetic relationships is invaluable. Chitin is one such molecule. Ancient chitin has been recovered from both terrestrial and marine arthropods, but prior to this study had not been recovered from fossil marine mollusks.<h4>Methodology/principal findings</h4>Organics consistent with β-chitin are recovered in cuttlebones of Mississaepia mississippiensis from the Late Eocene (34.36 million years ago) marine clays of Hinds County, Mississippi, USA. These organics were determined and characterized through comparisons with extant taxa using Scanning Electron Microscopy/Energy Dispersive Spectrometry (SEM/EDS), Field Emission Scanning Electron Microscopy (Hyperprobe), Fourier Transmission Infrared Spectroscopy (FTIR) and Immunohistochemistry (IHC).<h4>Conclusions/significance</h4>Our study presents the first evidence for organics consistent with chitin from an ancient marine mollusk and discusses how these organics have been degraded over time. As mechanisms for their preservation, we propose that the inorganic/organic lamination of the cuttlebone, combined with a suboxic depositional environment with available free Fe(2+) ions, inhibited microbial or enzymatic degradation.Patricia G WeaverLarisa A DoguzhaevaDaniel R LawverR Christopher TackerCharles N CiampaglioJon M CrateWenxia ZhengPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 11, p e28195 (2011)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Patricia G Weaver
Larisa A Doguzhaeva
Daniel R Lawver
R Christopher Tacker
Charles N Ciampaglio
Jon M Crate
Wenxia Zheng
Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
description <h4>Background</h4>Preservation of original organic components in fossils across geological time is controversial, but the potential such molecules have for elucidating evolutionary processes and phylogenetic relationships is invaluable. Chitin is one such molecule. Ancient chitin has been recovered from both terrestrial and marine arthropods, but prior to this study had not been recovered from fossil marine mollusks.<h4>Methodology/principal findings</h4>Organics consistent with β-chitin are recovered in cuttlebones of Mississaepia mississippiensis from the Late Eocene (34.36 million years ago) marine clays of Hinds County, Mississippi, USA. These organics were determined and characterized through comparisons with extant taxa using Scanning Electron Microscopy/Energy Dispersive Spectrometry (SEM/EDS), Field Emission Scanning Electron Microscopy (Hyperprobe), Fourier Transmission Infrared Spectroscopy (FTIR) and Immunohistochemistry (IHC).<h4>Conclusions/significance</h4>Our study presents the first evidence for organics consistent with chitin from an ancient marine mollusk and discusses how these organics have been degraded over time. As mechanisms for their preservation, we propose that the inorganic/organic lamination of the cuttlebone, combined with a suboxic depositional environment with available free Fe(2+) ions, inhibited microbial or enzymatic degradation.
format article
author Patricia G Weaver
Larisa A Doguzhaeva
Daniel R Lawver
R Christopher Tacker
Charles N Ciampaglio
Jon M Crate
Wenxia Zheng
author_facet Patricia G Weaver
Larisa A Doguzhaeva
Daniel R Lawver
R Christopher Tacker
Charles N Ciampaglio
Jon M Crate
Wenxia Zheng
author_sort Patricia G Weaver
title Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
title_short Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
title_full Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
title_fullStr Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
title_full_unstemmed Characterization of organics consistent with β-chitin preserved in the Late Eocene cuttlefish Mississaepia mississippiensis.
title_sort characterization of organics consistent with β-chitin preserved in the late eocene cuttlefish mississaepia mississippiensis.
publisher Public Library of Science (PLoS)
publishDate 2011
url https://doaj.org/article/34af8173323748aeb3aceb54b2cc81ce
work_keys_str_mv AT patriciagweaver characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT larisaadoguzhaeva characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT danielrlawver characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT rchristophertacker characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT charlesnciampaglio characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT jonmcrate characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
AT wenxiazheng characterizationoforganicsconsistentwithbchitinpreservedinthelateeocenecuttlefishmississaepiamississippiensis
_version_ 1718423277289865216