Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands
Climate change is stronger at high than at temperate and tropical latitudes. The natural geothermal conditions in southern Iceland provide an opportunity to study the impact of warming on plants, because of the geothermal bedrock channels that induce stable gradients of soil temperature. We studied...
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Online Access: | https://hdl.handle.net/20.500.11815/476 https://doi.org/10.3390/metabo7030044 |
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ftopinvisindi:oai:opinvisindi.is:20.500.11815/476 2024-09-15T18:02:27+00:00 Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands Gargallo-Garriga, Albert Ayala-Roque, Marta Sardans, Jordi Bartrons, Mireia Granda, Victor Sigurdsson, Bjarni D. Leblans, Niki Oravec, Michal Urban, Otmar Janssens, Ivan Penuelas, Josep Auðlinda- og umhverfisdeild (LBHÍ) Faculty of Natural Resources and Environmental Sciences (AUI) Landbúnaðarháskóli Íslands Agricultural University of Iceland 2017-08-23 44 https://hdl.handle.net/20.500.11815/476 https://doi.org/10.3390/metabo7030044 en eng MDPI AG Metabolites;7(3) http://www.mdpi.com/2218-1989/7/3/44/pdf Gargallo-Garriga, A., Ayala-Roque, M., Sardans, J., Bartrons, M., Granda, V., Sigurdsson, B., . . . Peñuelas, J. (2017). Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands. Metabolites, 7(3), 44. doi:10.3390/metabo7030044 2218-1989 https://hdl.handle.net/20.500.11815/476 Metabolites doi:10.3390/metabo7030044 info:eu-repo/semantics/openAccess Biochemistry Molecular Biology Climate change Lífefnafræði Jarðvegur Loftslagsbreytingar info:eu-repo/semantics/article 2017 ftopinvisindi https://doi.org/20.500.11815/47610.3390/metabo7030044 2024-07-09T03:01:56Z Climate change is stronger at high than at temperate and tropical latitudes. The natural geothermal conditions in southern Iceland provide an opportunity to study the impact of warming on plants, because of the geothermal bedrock channels that induce stable gradients of soil temperature. We studied two valleys, one where such gradients have been present for centuries (long-term treatment), and another where new gradients were created in 2008 after a shallow crustal earthquake (short-term treatment). We studied the impact of soil warming (0 to +15 C) on the foliar metabolomes of two common plant species of high northern latitudes: Agrostis capillaris, a monocotyledon grass; and Ranunculus acris, a dicotyledonous herb, and evaluated the dependence of shifts in their metabolomes on the length of the warming treatment. The two species responded differently to warming, depending on the length of exposure. The grass metabolome clearly shifted at the site of long-term warming, but the herb metabolome did not. The main up-regulated compounds at the highest temperatures at the long-term site were saccharides and amino acids, both involved in heat-shock metabolic pathways. Moreover, some secondary metabolites, such as phenolic acids and terpenes, associated with a wide array of stresses, were also up-regulated. Most current climatic models predict an increase in annual average temperature between 2–8 C over land masses in the Arctic towards the end of this century. The metabolomes of A. capillaris and R. acris shifted abruptly and nonlinearly to soil warming >5 C above the control temperature for the coming decades. These results thus suggest that a slight warming increase may not imply substantial changes in plant function, but if the temperature rises more than 5 C, warming may end up triggering metabolic pathways associated with heat stress in some plant species currently dominant in this region. This research was supported by the European Research Council Synergy grant ERC-2013-SyG-610028 IMBALANCE-P, the Spanish ... Article in Journal/Newspaper Climate change Iceland Opin vísindi (Iceland) Metabolites 7 3 44 |
institution |
Open Polar |
collection |
Opin vísindi (Iceland) |
op_collection_id |
ftopinvisindi |
language |
English |
topic |
Biochemistry Molecular Biology Climate change Lífefnafræði Jarðvegur Loftslagsbreytingar |
spellingShingle |
Biochemistry Molecular Biology Climate change Lífefnafræði Jarðvegur Loftslagsbreytingar Gargallo-Garriga, Albert Ayala-Roque, Marta Sardans, Jordi Bartrons, Mireia Granda, Victor Sigurdsson, Bjarni D. Leblans, Niki Oravec, Michal Urban, Otmar Janssens, Ivan Penuelas, Josep Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
topic_facet |
Biochemistry Molecular Biology Climate change Lífefnafræði Jarðvegur Loftslagsbreytingar |
description |
Climate change is stronger at high than at temperate and tropical latitudes. The natural geothermal conditions in southern Iceland provide an opportunity to study the impact of warming on plants, because of the geothermal bedrock channels that induce stable gradients of soil temperature. We studied two valleys, one where such gradients have been present for centuries (long-term treatment), and another where new gradients were created in 2008 after a shallow crustal earthquake (short-term treatment). We studied the impact of soil warming (0 to +15 C) on the foliar metabolomes of two common plant species of high northern latitudes: Agrostis capillaris, a monocotyledon grass; and Ranunculus acris, a dicotyledonous herb, and evaluated the dependence of shifts in their metabolomes on the length of the warming treatment. The two species responded differently to warming, depending on the length of exposure. The grass metabolome clearly shifted at the site of long-term warming, but the herb metabolome did not. The main up-regulated compounds at the highest temperatures at the long-term site were saccharides and amino acids, both involved in heat-shock metabolic pathways. Moreover, some secondary metabolites, such as phenolic acids and terpenes, associated with a wide array of stresses, were also up-regulated. Most current climatic models predict an increase in annual average temperature between 2–8 C over land masses in the Arctic towards the end of this century. The metabolomes of A. capillaris and R. acris shifted abruptly and nonlinearly to soil warming >5 C above the control temperature for the coming decades. These results thus suggest that a slight warming increase may not imply substantial changes in plant function, but if the temperature rises more than 5 C, warming may end up triggering metabolic pathways associated with heat stress in some plant species currently dominant in this region. This research was supported by the European Research Council Synergy grant ERC-2013-SyG-610028 IMBALANCE-P, the Spanish ... |
author2 |
Auðlinda- og umhverfisdeild (LBHÍ) Faculty of Natural Resources and Environmental Sciences (AUI) Landbúnaðarháskóli Íslands Agricultural University of Iceland |
format |
Article in Journal/Newspaper |
author |
Gargallo-Garriga, Albert Ayala-Roque, Marta Sardans, Jordi Bartrons, Mireia Granda, Victor Sigurdsson, Bjarni D. Leblans, Niki Oravec, Michal Urban, Otmar Janssens, Ivan Penuelas, Josep |
author_facet |
Gargallo-Garriga, Albert Ayala-Roque, Marta Sardans, Jordi Bartrons, Mireia Granda, Victor Sigurdsson, Bjarni D. Leblans, Niki Oravec, Michal Urban, Otmar Janssens, Ivan Penuelas, Josep |
author_sort |
Gargallo-Garriga, Albert |
title |
Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
title_short |
Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
title_full |
Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
title_fullStr |
Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
title_full_unstemmed |
Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands |
title_sort |
impact of soil warming on the plant metabolome of icelandic grasslands |
publisher |
MDPI AG |
publishDate |
2017 |
url |
https://hdl.handle.net/20.500.11815/476 https://doi.org/10.3390/metabo7030044 |
genre |
Climate change Iceland |
genre_facet |
Climate change Iceland |
op_relation |
Metabolites;7(3) http://www.mdpi.com/2218-1989/7/3/44/pdf Gargallo-Garriga, A., Ayala-Roque, M., Sardans, J., Bartrons, M., Granda, V., Sigurdsson, B., . . . Peñuelas, J. (2017). Impact of Soil Warming on the Plant Metabolome of Icelandic Grasslands. Metabolites, 7(3), 44. doi:10.3390/metabo7030044 2218-1989 https://hdl.handle.net/20.500.11815/476 Metabolites doi:10.3390/metabo7030044 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/20.500.11815/47610.3390/metabo7030044 |
container_title |
Metabolites |
container_volume |
7 |
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3 |
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44 |
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1810439906450735104 |