Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain

© The Author(s).

Detalles Bibliográficos
Autores: López Días, Veneranda, Borrego, Angeles G., Blanco, C. G., Bechtel, A., Püttmann, Wilhelm
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/191337
Acceso en línea:http://hdl.handle.net/10261/191337
Access Level:acceso abierto
Palabra clave:Temperate peat
Acetyl-triterpenoids
Hydrogenotrofic methanogenesis
Sphagnum-peat
3-oxyhopanoids
Acetyl-hopanoids
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oai_identifier_str oai:digital.csic.es:10261/191337
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
title Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
spellingShingle Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
López Días, Veneranda
Temperate peat
Acetyl-triterpenoids
Hydrogenotrofic methanogenesis
Sphagnum-peat
3-oxyhopanoids
Acetyl-hopanoids
title_short Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
title_full Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
title_fullStr Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
title_full_unstemmed Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
title_sort Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spain
dc.creator.none.fl_str_mv López Días, Veneranda
Borrego, Angeles G.
Blanco, C. G.
Bechtel, A.
Püttmann, Wilhelm
author López Días, Veneranda
author_facet López Días, Veneranda
Borrego, Angeles G.
Blanco, C. G.
Bechtel, A.
Püttmann, Wilhelm
author_role author
author2 Borrego, Angeles G.
Blanco, C. G.
Bechtel, A.
Püttmann, Wilhelm
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
German Academic Exchange Service
Ministerio de Economía y Competitividad (España)
LOEWE Center for Insect Biotechnology & Bioresources
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Temperate peat
Acetyl-triterpenoids
Hydrogenotrofic methanogenesis
Sphagnum-peat
3-oxyhopanoids
Acetyl-hopanoids
topic Temperate peat
Acetyl-triterpenoids
Hydrogenotrofic methanogenesis
Sphagnum-peat
3-oxyhopanoids
Acetyl-hopanoids
description © The Author(s).
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/191337
url http://hdl.handle.net/10261/191337
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-46458-C2-1-R
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Significance of the high abundance of pentacyclic triterpenyl and hopenyl acetates in sphagnum peat bogs from northern spainLópez Días, VenerandaBorrego, Angeles G.Blanco, C. G.Bechtel, A.Püttmann, WilhelmTemperate peatAcetyl-triterpenoidsHydrogenotrofic methanogenesisSphagnum-peat3-oxyhopanoidsAcetyl-hopanoids© The Author(s).Global warming is expected to increase the rate of CH4 emission from acidic peatlands leading to an increased interest on its mechanisms of formation. The main routes are through the reduction of CO2 by molecular hydrogen and through the cleavage of acetate. A predominance of the former, a reaction which also competes with homoacetogenesis to form acetate, may enrich the media in acetate, which could potentially be incorporated in the peat molecular markers. Acetates of triterpenoid biomarkers have been identified in peats and lake sediments and related to the input of higher plants. Nevertheless, the acetyl derivatives are found in very low amounts in fresh plants and in much lower amount than other derivatives with alcohol or ketone functional groups. The dichloromethane/methanol extracts of Asturian peat bog profiles (North Spain) were analyzed using gas chromatography/mass spectrometry (GC/MS) and compound-specific-isotope-analysis (CSIA). They show abundance of acetates of compounds with oleanane, ursane, and lupane skeletons derived from higher plants and with hopane skeleton, which can be considered a characteristic of these peats. Two families of 3-oxyhopenyl acetates with -17(21)- and -22(29)- configurations were detected in the upper part of the peat profiles, having a δ13C isotopic composition enriched by 4‰ compared with that of higher plant triterpenoids, and similar to that of microorganism-derived regular hopanoids. Both the acetate and ketone derivatives with the oxygenated functionality at C-3 were generally present in a given extract and tended to accumulate at certain depth in the profiles and in specific levels. The widespread occurrence of acetyl-derivatives, their higher concentration in the deeper layers of the peat, the fact that the acetates correspond to different compound families of diverse source and the very low amount of acetates identified in Ericaceae-contributing to the peat compared to the alcohols suggest that they were formed in the peat under particularly favorable environmental conditions. We postulate that these conditions could have been the existence of a medium enriched in acetic acid produced by the dominance of hydrogenotrophic methanogenesis and/or homoacetogenesis over acetoclastic methanogenesis. This phenomenon that has been preferentially described in Sphagnum bogs at high latitudes, and in the deeper layers of peat, appears to be also present in the temperate peats of the Asturian coast.Financial support from the Spanish Ministry for Science and Innovation (MICINN) and the German Academic Exchange Service (DAAD) through a bilateral research project (DE2009-0055) is gratefully acknowledged. Further economic support was received from projects CGL2009-13990-C02-01 (MICINN) and CGL2013-46458-C2-1-R (MINECO) and the LOEWE program (Landes Offensive zur Entwicklung Wissenschaftlich-ökonomischer Exzellenz) of Hesse’s Ministry of Higher Education, Research, and the Arts by funding the Biodiversity and Climate Research Centre (BiK-F).Peer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Ciencia e Innovación (España)German Academic Exchange ServiceMinisterio de Economía y Competitividad (España)LOEWE Center for Insect Biotechnology & BioresourcesConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/191337reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2013-46458-C2-1-RSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1913372026-05-22T06:33:51Z
score 15,811543

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