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Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes

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Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes. / Nottingham, Andrew; Turner, Benjamin L.; Whitaker, Jeanette; Ostle, Nicholas John; Bardgett, Richard David; McNamara, Niall P.; Salinas, Norma; Meir, Patrick.

In: Biogeochemistry, Vol. 127, No. 2, 02.2016, p. 217-230.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Nottingham, A, Turner, BL, Whitaker, J, Ostle, NJ, Bardgett, RD, McNamara, NP, Salinas, N & Meir, P 2016, 'Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes', Biogeochemistry, vol. 127, no. 2, pp. 217-230. https://doi.org/10.1007/s10533-015-0176-2

APA

Nottingham, A., Turner, B. L., Whitaker, J., Ostle, N. J., Bardgett, R. D., McNamara, N. P., Salinas, N., & Meir, P. (2016). Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes. Biogeochemistry, 127(2), 217-230. https://doi.org/10.1007/s10533-015-0176-2

Vancouver

Author

Nottingham, Andrew ; Turner, Benjamin L. ; Whitaker, Jeanette ; Ostle, Nicholas John ; Bardgett, Richard David ; McNamara, Niall P. ; Salinas, Norma ; Meir, Patrick. / Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes. In: Biogeochemistry. 2016 ; Vol. 127, No. 2. pp. 217-230.

Bibtex

@article{fd3c918c3a2c4069948cc6daa1fb17a8,
title = "Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes",
abstract = "Soil enzymes are catalysts of organic matter depolymerisation, which is of critical importance for ecosystem carbon (C) cycling. Better understanding of the sensitivity of enzymes to temperature will enable improved predictions of climate change impacts on soil C stocks. These impacts may be especially large in tropical montane forests, which contain large amounts of soil C. We determined the temperature sensitivity (Q10) of a range of hydrolytic and oxidative enzymes involved in organic matter cycling from soils along a 1900 m elevation gradient (a 10 °C mean annual temperature gradient) of tropical montane forest in the Peruvian Andes. We investigated whether the activity (Vmax) of selected enzymes: (i) exhibited a Q10 that varied with elevation and/or soil properties; and (ii) varied among enzymes and according to the complexity of the target substrate for C-degrading enzymes. The Q10 of Vmax for β-glucosidase and β-xylanase increased with increasing elevation and declining mean annual temperature. For all other enzymes, including cellobiohydrolase, N-acetyl β-glucosaminidase and phosphomonoesterase, the Q10 of Vmax did not vary linearly with elevation. Hydrolytic enzymes that degrade more complex C compounds had a greater Q10 of Vmax, but this pattern did not apply to oxidative enzymes because phenol oxidase had the lowest Q10 value of all enzymes studied here. Our findings suggest that regional differences in the temperature sensitivities of different enzyme classes may influence the terrestrial C cycle under future climate warming.",
keywords = "β-glucosidase, β-xylanase, Q10 values, Soil carbon, Tropical montane forest",
author = "Andrew Nottingham and Turner, {Benjamin L.} and Jeanette Whitaker and Ostle, {Nicholas John} and Bardgett, {Richard David} and McNamara, {Niall P.} and Norma Salinas and Patrick Meir",
year = "2016",
month = feb,
doi = "10.1007/s10533-015-0176-2",
language = "English",
volume = "127",
pages = "217--230",
journal = "Biogeochemistry",
issn = "0168-2563",
publisher = "SPRINGER",
number = "2",

}

RIS

TY - JOUR

T1 - Temperature sensitivity of soil enzymes along an elevation gradient in the Peruvian Andes

AU - Nottingham, Andrew

AU - Turner, Benjamin L.

AU - Whitaker, Jeanette

AU - Ostle, Nicholas John

AU - Bardgett, Richard David

AU - McNamara, Niall P.

AU - Salinas, Norma

AU - Meir, Patrick

PY - 2016/2

Y1 - 2016/2

N2 - Soil enzymes are catalysts of organic matter depolymerisation, which is of critical importance for ecosystem carbon (C) cycling. Better understanding of the sensitivity of enzymes to temperature will enable improved predictions of climate change impacts on soil C stocks. These impacts may be especially large in tropical montane forests, which contain large amounts of soil C. We determined the temperature sensitivity (Q10) of a range of hydrolytic and oxidative enzymes involved in organic matter cycling from soils along a 1900 m elevation gradient (a 10 °C mean annual temperature gradient) of tropical montane forest in the Peruvian Andes. We investigated whether the activity (Vmax) of selected enzymes: (i) exhibited a Q10 that varied with elevation and/or soil properties; and (ii) varied among enzymes and according to the complexity of the target substrate for C-degrading enzymes. The Q10 of Vmax for β-glucosidase and β-xylanase increased with increasing elevation and declining mean annual temperature. For all other enzymes, including cellobiohydrolase, N-acetyl β-glucosaminidase and phosphomonoesterase, the Q10 of Vmax did not vary linearly with elevation. Hydrolytic enzymes that degrade more complex C compounds had a greater Q10 of Vmax, but this pattern did not apply to oxidative enzymes because phenol oxidase had the lowest Q10 value of all enzymes studied here. Our findings suggest that regional differences in the temperature sensitivities of different enzyme classes may influence the terrestrial C cycle under future climate warming.

AB - Soil enzymes are catalysts of organic matter depolymerisation, which is of critical importance for ecosystem carbon (C) cycling. Better understanding of the sensitivity of enzymes to temperature will enable improved predictions of climate change impacts on soil C stocks. These impacts may be especially large in tropical montane forests, which contain large amounts of soil C. We determined the temperature sensitivity (Q10) of a range of hydrolytic and oxidative enzymes involved in organic matter cycling from soils along a 1900 m elevation gradient (a 10 °C mean annual temperature gradient) of tropical montane forest in the Peruvian Andes. We investigated whether the activity (Vmax) of selected enzymes: (i) exhibited a Q10 that varied with elevation and/or soil properties; and (ii) varied among enzymes and according to the complexity of the target substrate for C-degrading enzymes. The Q10 of Vmax for β-glucosidase and β-xylanase increased with increasing elevation and declining mean annual temperature. For all other enzymes, including cellobiohydrolase, N-acetyl β-glucosaminidase and phosphomonoesterase, the Q10 of Vmax did not vary linearly with elevation. Hydrolytic enzymes that degrade more complex C compounds had a greater Q10 of Vmax, but this pattern did not apply to oxidative enzymes because phenol oxidase had the lowest Q10 value of all enzymes studied here. Our findings suggest that regional differences in the temperature sensitivities of different enzyme classes may influence the terrestrial C cycle under future climate warming.

KW - β-glucosidase

KW - β-xylanase

KW - Q10 values

KW - Soil carbon

KW - Tropical montane forest

U2 - 10.1007/s10533-015-0176-2

DO - 10.1007/s10533-015-0176-2

M3 - Journal article

VL - 127

SP - 217

EP - 230

JO - Biogeochemistry

JF - Biogeochemistry

SN - 0168-2563

IS - 2

ER -