Impact of SoilWarming on the Plant Metabolome of Icelandic Grasslands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F17%3A00551749" target="_blank" >RIV/86652079:_____/17:00551749 - isvavai.cz</a>

Alternative codes found

RIV/86652079:_____/17:00484937

Result on the web

<a href="https://www.mdpi.com/2218-1989/7/3/44" target="_blank" >https://www.mdpi.com/2218-1989/7/3/44</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/metabo7030044" target="_blank" >10.3390/metabo7030044</a>

Result language

angličtina

Original language name

Impact of SoilWarming on the Plant Metabolome of Icelandic Grasslands

Original language 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 degrees 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 degrees 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 degrees 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 degrees C, warming may end up triggering metabolic pathways associated with heat stress in some plant species currently dominant in this region.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10608 - Biochemistry and molecular biology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Metabolites

ISSN

2218-1989

e-ISSN

2218-1989

Volume of the periodical

7

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

22

Pages from-to

44

UT code for WoS article

000415852700014

EID of the result in the Scopus database

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