In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia

Abstract: Soil enzymes can be sensitive indicators of C changes in forest soils produced by global warming. This study assessed the response to temperature of soil enzymes in forest soils from the fragile cold ecosystems of Western Patagonia (Chile), to be used as indicators of the biological C emis...

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Autores principales:	Machuca,Ángela, Córdova,Carolin, Stolpe,Neal Brian, Barrera,Juan Alberto, Chávez,Daniel, Almendras,Katerin, Bonilla,Ana María
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2018
Materias:	Activation energy β-glucosidase N-acetyl-β-glucosaminidase C mineralization global warming
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100202
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spelling	oai:scielo:S0718-951620180001002022018-11-21In vitro sensitivity of forest soil enzymes to temperature increase in Western PatagoniaMachuca,ÁngelaCórdova,CarolinStolpe,Neal BrianBarrera,Juan AlbertoChávez,DanielAlmendras,KaterinBonilla,Ana María Activation energy β-glucosidase N-acetyl-β-glucosaminidase C mineralization global warming Abstract: Soil enzymes can be sensitive indicators of C changes in forest soils produced by global warming. This study assessed the response to temperature of soil enzymes in forest soils from the fragile cold ecosystems of Western Patagonia (Chile), to be used as indicators of the biological C emissions from the soil under climate change for this Region. Soil from two sites of Nothofagus forest were sampled (0-5 cm), and soil C mineralization (21 days of soil incubation) and the enzyme activities of N-acetyl-β-glucosaminidase (NGA, linked to C and N cycles), β-glucosidase (BG, linked to C cycle), and endo-1,4-β-glucanase (CMCase, linked to C cycle) were measured at 5°C and 20oC. Additionally, sensitivity of enzyme activities was measured at 0, 5, 10 and 20oC during experimental protocol incubation procedure, and energy activation (Ea) and Q10 parameters were calculated. At both sites, the NGA activity mirrored the microbial activity, when temperature rose from 5 ºC to 20 °C. The NGA showed Ea higher than BG, indicating that the release of N-acetyl-glucosamine was more sensitive to temperature than the release of glucose, related to BG. The results suggest the applicability of NGA as potential indicator to assess effects of global warming in forest soils from Patagonia.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.18 n.1 20182018-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100202en10.4067/S0718-95162018005000801
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Activation energy β-glucosidase N-acetyl-β-glucosaminidase C mineralization global warming
spellingShingle	Activation energy β-glucosidase N-acetyl-β-glucosaminidase C mineralization global warming Machuca,Ángela Córdova,Carolin Stolpe,Neal Brian Barrera,Juan Alberto Chávez,Daniel Almendras,Katerin Bonilla,Ana María In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
description	Abstract: Soil enzymes can be sensitive indicators of C changes in forest soils produced by global warming. This study assessed the response to temperature of soil enzymes in forest soils from the fragile cold ecosystems of Western Patagonia (Chile), to be used as indicators of the biological C emissions from the soil under climate change for this Region. Soil from two sites of Nothofagus forest were sampled (0-5 cm), and soil C mineralization (21 days of soil incubation) and the enzyme activities of N-acetyl-β-glucosaminidase (NGA, linked to C and N cycles), β-glucosidase (BG, linked to C cycle), and endo-1,4-β-glucanase (CMCase, linked to C cycle) were measured at 5°C and 20oC. Additionally, sensitivity of enzyme activities was measured at 0, 5, 10 and 20oC during experimental protocol incubation procedure, and energy activation (Ea) and Q10 parameters were calculated. At both sites, the NGA activity mirrored the microbial activity, when temperature rose from 5 ºC to 20 °C. The NGA showed Ea higher than BG, indicating that the release of N-acetyl-glucosamine was more sensitive to temperature than the release of glucose, related to BG. The results suggest the applicability of NGA as potential indicator to assess effects of global warming in forest soils from Patagonia.
author	Machuca,Ángela Córdova,Carolin Stolpe,Neal Brian Barrera,Juan Alberto Chávez,Daniel Almendras,Katerin Bonilla,Ana María
author_facet	Machuca,Ángela Córdova,Carolin Stolpe,Neal Brian Barrera,Juan Alberto Chávez,Daniel Almendras,Katerin Bonilla,Ana María
author_sort	Machuca,Ángela
title	In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
title_short	In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
title_full	In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
title_fullStr	In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
title_full_unstemmed	In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia
title_sort	in vitro sensitivity of forest soil enzymes to temperature increase in western patagonia
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162018000100202
work_keys_str_mv	AT machucaangela invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT cordovacarolin invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT stolpenealbrian invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT barrerajuanalberto invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT chavezdaniel invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT almendraskaterin invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia AT bonillaanamaria invitrosensitivityofforestsoilenzymestotemperatureincreaseinwesternpatagonia
_version_	1714206579839991808

In vitro sensitivity of forest soil enzymes to temperature increase in Western Patagonia

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