Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

Abstract The microbial contribution to soil organic matter has been shown to be much larger than previously thought and thus it plays a major role in carbon cycling. Among soil microorganisms, chemoautotrophs can fix CO2 without sunlight and can glean energy through the oxidation of reduced elements...

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Autores principales:	Brian P. Kelleher, Paul V. Flanagan, Kris M. Hart, Andre J. Simpson, Seth F. Oppenheimer, Brian T. Murphy, Shane S. O’Reilly, Sean F. Jordan, Anthony Grey, Aliyu Ibrahim, Christopher C. R. Allen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/624f0bb01dc944f58054af944a1f9b34
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spelling	oai:doaj.org-article:624f0bb01dc944f58054af944a1f9b342021-12-02T11:53:12ZLarge perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur10.1038/s41598-017-04934-92045-2322https://doaj.org/article/624f0bb01dc944f58054af944a1f9b342017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04934-9https://doaj.org/toc/2045-2322Abstract The microbial contribution to soil organic matter has been shown to be much larger than previously thought and thus it plays a major role in carbon cycling. Among soil microorganisms, chemoautotrophs can fix CO2 without sunlight and can glean energy through the oxidation of reduced elements such as sulfur. Here we show that the addition of sulfur to soil results in an initial surge in production of CO2 through microbial respiration, followed by an order of magnitude increase in the capture of carbon from the atmosphere as elemental sulfur is oxidised to sulfate. Thiobacillus spp., take advantage of specific conditions to become the dominant chemoautotrophic group that consumes CO2. We discern the direct incorporation of atmospheric carbon into soil carbohydrate, protein and aliphatic compounds and differentiate these from existing biomass. These results suggest that chemoautotrophs can play a large role in carbon cycling and that this carbon is heavily influenced by land management practises.Brian P. KelleherPaul V. FlanaganKris M. HartAndre J. SimpsonSeth F. OppenheimerBrian T. MurphyShane S. O’ReillySean F. JordanAnthony GreyAliyu IbrahimChristopher C. R. AllenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Brian P. Kelleher Paul V. Flanagan Kris M. Hart Andre J. Simpson Seth F. Oppenheimer Brian T. Murphy Shane S. O’Reilly Sean F. Jordan Anthony Grey Aliyu Ibrahim Christopher C. R. Allen Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
description	Abstract The microbial contribution to soil organic matter has been shown to be much larger than previously thought and thus it plays a major role in carbon cycling. Among soil microorganisms, chemoautotrophs can fix CO2 without sunlight and can glean energy through the oxidation of reduced elements such as sulfur. Here we show that the addition of sulfur to soil results in an initial surge in production of CO2 through microbial respiration, followed by an order of magnitude increase in the capture of carbon from the atmosphere as elemental sulfur is oxidised to sulfate. Thiobacillus spp., take advantage of specific conditions to become the dominant chemoautotrophic group that consumes CO2. We discern the direct incorporation of atmospheric carbon into soil carbohydrate, protein and aliphatic compounds and differentiate these from existing biomass. These results suggest that chemoautotrophs can play a large role in carbon cycling and that this carbon is heavily influenced by land management practises.
format	article
author	Brian P. Kelleher Paul V. Flanagan Kris M. Hart Andre J. Simpson Seth F. Oppenheimer Brian T. Murphy Shane S. O’Reilly Sean F. Jordan Anthony Grey Aliyu Ibrahim Christopher C. R. Allen
author_facet	Brian P. Kelleher Paul V. Flanagan Kris M. Hart Andre J. Simpson Seth F. Oppenheimer Brian T. Murphy Shane S. O’Reilly Sean F. Jordan Anthony Grey Aliyu Ibrahim Christopher C. R. Allen
author_sort	Brian P. Kelleher
title	Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
title_short	Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
title_full	Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
title_fullStr	Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
title_full_unstemmed	Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
title_sort	large perturbations in co2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/624f0bb01dc944f58054af944a1f9b34
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Large perturbations in CO2 flux and subsequent chemosynthesis are induced in agricultural soil by the addition of elemental sulfur

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