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Riverbed methanotrophy sustained by high carbon conversion efficiency

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Riverbed methanotrophy sustained by high carbon conversion efficiency. / Trimmer, Mark; Shelley, Felicity C.; Purdy, Kevin J. et al.
In: ISME Journal, Vol. 9, No. 10, 09.06.2015, p. 2304-2314.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Trimmer, M, Shelley, FC, Purdy, KJ, Maanoja, ST, Chronopoulou, P-M & Grey, J 2015, 'Riverbed methanotrophy sustained by high carbon conversion efficiency', ISME Journal, vol. 9, no. 10, pp. 2304-2314. https://doi.org/10.1038/ismej.2015.98

APA

Trimmer, M., Shelley, F. C., Purdy, K. J., Maanoja, S. T., Chronopoulou, P.-M., & Grey, J. (2015). Riverbed methanotrophy sustained by high carbon conversion efficiency. ISME Journal, 9(10), 2304-2314. https://doi.org/10.1038/ismej.2015.98

Vancouver

Trimmer M, Shelley FC, Purdy KJ, Maanoja ST, Chronopoulou PM, Grey J. Riverbed methanotrophy sustained by high carbon conversion efficiency. ISME Journal. 2015 Jun 9;9(10):2304-2314. doi: 10.1038/ismej.2015.98

Author

Trimmer, Mark ; Shelley, Felicity C. ; Purdy, Kevin J. et al. / Riverbed methanotrophy sustained by high carbon conversion efficiency. In: ISME Journal. 2015 ; Vol. 9, No. 10. pp. 2304-2314.

Bibtex

@article{9c9444f345e846a4ab538576373b2c00,
title = "Riverbed methanotrophy sustained by high carbon conversion efficiency",
abstract = "Our understanding of the role of freshwaters in the global carbon cycle is being revised, but there is still a lack of data, especially for the cycling of methane, in rivers and streams. Unravelling the role of methanotrophy is key to determining the fate of methane in rivers. Here we focus on the carbon conversion efficiency (CCE) of methanotrophy, that is, how much organic carbon is produced per mole of CH4 oxidised, and how this is influenced by variation in methanotroph communities. First, we show that the CCE of riverbed methanotrophs is consistently high (~50%) across a wide range of methane concentrations (~10–7000 nM) and despite a 10-fold span in the rate of methane oxidation. Then, we show that this high conversion efficiency is largely conserved (50%± confidence interval 44–56%) across pronounced variation in the key functional gene (70 operational taxonomic units (OTUs)), particulate methane monooxygenase (pmoA), and marked shifts in the abundance of Type I and Type II methanotrophs in eight replicate chalk streams. These data may suggest a degree of functional redundancy within the variable methanotroph community inhabiting these streams and that some of the variation in pmoA may reflect a suite of enzymes of different methane affinities which enables such a large range of methane concentrations to be oxidised. The latter, coupled to their high CCE, enables the methanotrophs to sustain net production throughout the year, regardless of the marked temporal and spatial changes that occur in methane.",
author = "Mark Trimmer and Shelley, {Felicity C.} and Purdy, {Kevin J.} and Maanoja, {Susanna T.} and Panagiota-Myrsini Chronopoulou and Jonathan Grey",
year = "2015",
month = jun,
day = "9",
doi = "10.1038/ismej.2015.98",
language = "English",
volume = "9",
pages = "2304--2314",
journal = "ISME Journal",
issn = "1751-7362",
publisher = "Nature Publishing Group",
number = "10",

}

RIS

TY - JOUR

T1 - Riverbed methanotrophy sustained by high carbon conversion efficiency

AU - Trimmer, Mark

AU - Shelley, Felicity C.

AU - Purdy, Kevin J.

AU - Maanoja, Susanna T.

AU - Chronopoulou, Panagiota-Myrsini

AU - Grey, Jonathan

PY - 2015/6/9

Y1 - 2015/6/9

N2 - Our understanding of the role of freshwaters in the global carbon cycle is being revised, but there is still a lack of data, especially for the cycling of methane, in rivers and streams. Unravelling the role of methanotrophy is key to determining the fate of methane in rivers. Here we focus on the carbon conversion efficiency (CCE) of methanotrophy, that is, how much organic carbon is produced per mole of CH4 oxidised, and how this is influenced by variation in methanotroph communities. First, we show that the CCE of riverbed methanotrophs is consistently high (~50%) across a wide range of methane concentrations (~10–7000 nM) and despite a 10-fold span in the rate of methane oxidation. Then, we show that this high conversion efficiency is largely conserved (50%± confidence interval 44–56%) across pronounced variation in the key functional gene (70 operational taxonomic units (OTUs)), particulate methane monooxygenase (pmoA), and marked shifts in the abundance of Type I and Type II methanotrophs in eight replicate chalk streams. These data may suggest a degree of functional redundancy within the variable methanotroph community inhabiting these streams and that some of the variation in pmoA may reflect a suite of enzymes of different methane affinities which enables such a large range of methane concentrations to be oxidised. The latter, coupled to their high CCE, enables the methanotrophs to sustain net production throughout the year, regardless of the marked temporal and spatial changes that occur in methane.

AB - Our understanding of the role of freshwaters in the global carbon cycle is being revised, but there is still a lack of data, especially for the cycling of methane, in rivers and streams. Unravelling the role of methanotrophy is key to determining the fate of methane in rivers. Here we focus on the carbon conversion efficiency (CCE) of methanotrophy, that is, how much organic carbon is produced per mole of CH4 oxidised, and how this is influenced by variation in methanotroph communities. First, we show that the CCE of riverbed methanotrophs is consistently high (~50%) across a wide range of methane concentrations (~10–7000 nM) and despite a 10-fold span in the rate of methane oxidation. Then, we show that this high conversion efficiency is largely conserved (50%± confidence interval 44–56%) across pronounced variation in the key functional gene (70 operational taxonomic units (OTUs)), particulate methane monooxygenase (pmoA), and marked shifts in the abundance of Type I and Type II methanotrophs in eight replicate chalk streams. These data may suggest a degree of functional redundancy within the variable methanotroph community inhabiting these streams and that some of the variation in pmoA may reflect a suite of enzymes of different methane affinities which enables such a large range of methane concentrations to be oxidised. The latter, coupled to their high CCE, enables the methanotrophs to sustain net production throughout the year, regardless of the marked temporal and spatial changes that occur in methane.

U2 - 10.1038/ismej.2015.98

DO - 10.1038/ismej.2015.98

M3 - Journal article

VL - 9

SP - 2304

EP - 2314

JO - ISME Journal

JF - ISME Journal

SN - 1751-7362

IS - 10

ER -