Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake

Abstract Biogenic volatile organic compounds (BVOCs) affect atmospheric chemistry, climate and regional air quality in terrestrial and marine atmospheres. Although isoprene is a major BVOC produced in vascular plants, and marine phototrophs release dimethyl sulfide (DMS), lakes have been widely igno...

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Autores principales:	Michael Steinke, Bettina Hodapp, Rameez Subhan, Thomas G. Bell, Dominik Martin-Creuzburg
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a637b824a6fd4abe90033a6dc6713641
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spelling	oai:doaj.org-article:a637b824a6fd4abe90033a6dc67136412021-12-02T15:08:40ZFlux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake10.1038/s41598-017-18923-52045-2322https://doaj.org/article/a637b824a6fd4abe90033a6dc67136412018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-18923-5https://doaj.org/toc/2045-2322Abstract Biogenic volatile organic compounds (BVOCs) affect atmospheric chemistry, climate and regional air quality in terrestrial and marine atmospheres. Although isoprene is a major BVOC produced in vascular plants, and marine phototrophs release dimethyl sulfide (DMS), lakes have been widely ignored for their production. Here we demonstrate that oligotrophic Lake Constance, a model for north temperate deep lakes, emits both volatiles to the atmosphere. Depth profiles indicated that highest concentrations of isoprene and DMS were associated with the chlorophyll maximum, suggesting that their production is closely linked to phototrophic processes. Significant correlations of the concentration patterns with taxon-specific fluorescence data, and measurements from algal cultures confirmed the phototrophic production of isoprene and DMS. Diurnal fluctuations in lake isoprene suggested an unrecognised physiological role in environmental acclimation similar to the antioxidant function of isoprene that has been suggested for marine biota. Flux estimations demonstrated that lakes are a currently undocumented source of DMS and isoprene to the atmosphere. Lakes may be of increasing importance for their contribution of isoprene and DMS to the atmosphere in the arctic zone where lake area coverage is high but terrestrial sources of BVOCs are small.Michael SteinkeBettina HodappRameez SubhanThomas G. BellDominik Martin-CreuzburgNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michael Steinke Bettina Hodapp Rameez Subhan Thomas G. Bell Dominik Martin-Creuzburg Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
description	Abstract Biogenic volatile organic compounds (BVOCs) affect atmospheric chemistry, climate and regional air quality in terrestrial and marine atmospheres. Although isoprene is a major BVOC produced in vascular plants, and marine phototrophs release dimethyl sulfide (DMS), lakes have been widely ignored for their production. Here we demonstrate that oligotrophic Lake Constance, a model for north temperate deep lakes, emits both volatiles to the atmosphere. Depth profiles indicated that highest concentrations of isoprene and DMS were associated with the chlorophyll maximum, suggesting that their production is closely linked to phototrophic processes. Significant correlations of the concentration patterns with taxon-specific fluorescence data, and measurements from algal cultures confirmed the phototrophic production of isoprene and DMS. Diurnal fluctuations in lake isoprene suggested an unrecognised physiological role in environmental acclimation similar to the antioxidant function of isoprene that has been suggested for marine biota. Flux estimations demonstrated that lakes are a currently undocumented source of DMS and isoprene to the atmosphere. Lakes may be of increasing importance for their contribution of isoprene and DMS to the atmosphere in the arctic zone where lake area coverage is high but terrestrial sources of BVOCs are small.
format	article
author	Michael Steinke Bettina Hodapp Rameez Subhan Thomas G. Bell Dominik Martin-Creuzburg
author_facet	Michael Steinke Bettina Hodapp Rameez Subhan Thomas G. Bell Dominik Martin-Creuzburg
author_sort	Michael Steinke
title	Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
title_short	Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
title_full	Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
title_fullStr	Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
title_full_unstemmed	Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
title_sort	flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/a637b824a6fd4abe90033a6dc6713641
work_keys_str_mv	AT michaelsteinke fluxofthebiogenicvolatilesisopreneanddimethylsulfidefromanoligotrophiclake AT bettinahodapp fluxofthebiogenicvolatilesisopreneanddimethylsulfidefromanoligotrophiclake AT rameezsubhan fluxofthebiogenicvolatilesisopreneanddimethylsulfidefromanoligotrophiclake AT thomasgbell fluxofthebiogenicvolatilesisopreneanddimethylsulfidefromanoligotrophiclake AT dominikmartincreuzburg fluxofthebiogenicvolatilesisopreneanddimethylsulfidefromanoligotrophiclake
_version_	1718388079300968448

Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake

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