Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils

Abstract Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the atmosphere´s primary oxidant. An unknown strong daytime source of HONO is required to explain measurements in ambient air. Emissions from soils are one of the potential sources. Ammonia-oxidizing bacteria (AOB)...

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Autores principales:	M. Ermel, T. Behrendt, R. Oswald, B. Derstroff, D. Wu, S. Hohlmann, C. Stönner, A. Pommerening-Röser, M. Könneke, J. Williams, F. X. Meixner, M. O. Andreae, I. Trebs, M. Sörgel
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0a1c73a78de148cd9cc68523fda0d791
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spelling	oai:doaj.org-article:0a1c73a78de148cd9cc68523fda0d7912021-12-02T15:05:29ZHydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils10.1038/s41598-018-20170-12045-2322https://doaj.org/article/0a1c73a78de148cd9cc68523fda0d7912018-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20170-1https://doaj.org/toc/2045-2322Abstract Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the atmosphere´s primary oxidant. An unknown strong daytime source of HONO is required to explain measurements in ambient air. Emissions from soils are one of the potential sources. Ammonia-oxidizing bacteria (AOB) have been identified as possible producers of these HONO soil emissions. However, the mechanisms for production and release of HONO in soils are not fully understood. In this study, we used a dynamic soil-chamber system to provide direct evidence that gaseous emissions from nitrifying pure cultures contain hydroxylamine (NH2OH), which is subsequently converted to HONO in a heterogeneous reaction with water vapor on glass bead surfaces. In addition to different AOB species, we found release of HONO also in ammonia-oxidizing archaea (AOA), suggesting that these globally abundant microbes may also contribute to the formation of atmospheric HONO and consequently OH. Since biogenic NH2OH is formed by diverse organisms, such as AOB, AOA, methane-oxidizing bacteria, heterotrophic nitrifiers, and fungi, we argue that HONO emission from soil is not restricted to the nitrifying bacteria, but is also promoted by nitrifying members of the domains Archaea and Eukarya.M. ErmelT. BehrendtR. OswaldB. DerstroffD. WuS. HohlmannC. StönnerA. Pommerening-RöserM. KönnekeJ. WilliamsF. X. MeixnerM. O. AndreaeI. TrebsM. SörgelNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q M. Ermel T. Behrendt R. Oswald B. Derstroff D. Wu S. Hohlmann C. Stönner A. Pommerening-Röser M. Könneke J. Williams F. X. Meixner M. O. Andreae I. Trebs M. Sörgel Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
description	Abstract Nitrous acid (HONO) is an important precursor of the hydroxyl radical (OH), the atmosphere´s primary oxidant. An unknown strong daytime source of HONO is required to explain measurements in ambient air. Emissions from soils are one of the potential sources. Ammonia-oxidizing bacteria (AOB) have been identified as possible producers of these HONO soil emissions. However, the mechanisms for production and release of HONO in soils are not fully understood. In this study, we used a dynamic soil-chamber system to provide direct evidence that gaseous emissions from nitrifying pure cultures contain hydroxylamine (NH2OH), which is subsequently converted to HONO in a heterogeneous reaction with water vapor on glass bead surfaces. In addition to different AOB species, we found release of HONO also in ammonia-oxidizing archaea (AOA), suggesting that these globally abundant microbes may also contribute to the formation of atmospheric HONO and consequently OH. Since biogenic NH2OH is formed by diverse organisms, such as AOB, AOA, methane-oxidizing bacteria, heterotrophic nitrifiers, and fungi, we argue that HONO emission from soil is not restricted to the nitrifying bacteria, but is also promoted by nitrifying members of the domains Archaea and Eukarya.
format	article
author	M. Ermel T. Behrendt R. Oswald B. Derstroff D. Wu S. Hohlmann C. Stönner A. Pommerening-Röser M. Könneke J. Williams F. X. Meixner M. O. Andreae I. Trebs M. Sörgel
author_facet	M. Ermel T. Behrendt R. Oswald B. Derstroff D. Wu S. Hohlmann C. Stönner A. Pommerening-Röser M. Könneke J. Williams F. X. Meixner M. O. Andreae I. Trebs M. Sörgel
author_sort	M. Ermel
title	Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
title_short	Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
title_full	Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
title_fullStr	Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
title_full_unstemmed	Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils
title_sort	hydroxylamine released by nitrifying microorganisms is a precursor for hono emission from drying soils
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/0a1c73a78de148cd9cc68523fda0d791
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Hydroxylamine released by nitrifying microorganisms is a precursor for HONO emission from drying soils

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