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...
Published in: | Metabolites |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | https://doi.org/10.3390/metabo7030044 http://hdl.handle.net/11104/0280053 |
id |
ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0484937 |
---|---|
record_format |
openpolar |
spelling |
ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0484937 2024-02-04T09:58:34+01:00 Impact of soil warming on the plant metabolome of Icelandic grasslands Gargallo-Garriga, A. Ayala-Roque, M. Sardans, J. Bartrons, M. Granda, V. Sigurdsson, B. D. Leblans, N. I.W. Oravec, M. (Michal) Urban, O. (Otmar) Janssens, I. A. Peñuelas, J. 2017 https://doi.org/10.3390/metabo7030044 http://hdl.handle.net/11104/0280053 eng eng doi:10.3390/metabo7030044 urn:pissn: 2218-1989 urn:eissn: 2218-1989 http://hdl.handle.net/11104/0280053 Climate change Geothermal bedrock channels Grassland Iceland Metabolome Warming info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftczacademyscien https://doi.org/10.3390/metabo7030044 2024-01-09T17:41:15Z 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. Article in Journal/Newspaper Arctic Climate change Iceland The Czech Academy of Sciences: Publication Activity (ASEP) Arctic Metabolites 7 3 44 |
institution |
Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
Climate change Geothermal bedrock channels Grassland Iceland Metabolome Warming |
spellingShingle |
Climate change Geothermal bedrock channels Grassland Iceland Metabolome Warming Gargallo-Garriga, A. Ayala-Roque, M. Sardans, J. Bartrons, M. Granda, V. Sigurdsson, B. D. Leblans, N. I.W. Oravec, M. (Michal) Urban, O. (Otmar) Janssens, I. A. Peñuelas, J. Impact of soil warming on the plant metabolome of Icelandic grasslands |
topic_facet |
Climate change Geothermal bedrock channels Grassland Iceland Metabolome Warming |
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. |
format |
Article in Journal/Newspaper |
author |
Gargallo-Garriga, A. Ayala-Roque, M. Sardans, J. Bartrons, M. Granda, V. Sigurdsson, B. D. Leblans, N. I.W. Oravec, M. (Michal) Urban, O. (Otmar) Janssens, I. A. Peñuelas, J. |
author_facet |
Gargallo-Garriga, A. Ayala-Roque, M. Sardans, J. Bartrons, M. Granda, V. Sigurdsson, B. D. Leblans, N. I.W. Oravec, M. (Michal) Urban, O. (Otmar) Janssens, I. A. Peñuelas, J. |
author_sort |
Gargallo-Garriga, A. |
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 |
publishDate |
2017 |
url |
https://doi.org/10.3390/metabo7030044 http://hdl.handle.net/11104/0280053 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Iceland |
genre_facet |
Arctic Climate change Iceland |
op_relation |
doi:10.3390/metabo7030044 urn:pissn: 2218-1989 urn:eissn: 2218-1989 http://hdl.handle.net/11104/0280053 |
op_doi |
https://doi.org/10.3390/metabo7030044 |
container_title |
Metabolites |
container_volume |
7 |
container_issue |
3 |
container_start_page |
44 |
_version_ |
1789963015902199808 |