About: Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Temperature responses of carbon assimilation processes were studied in four dominant species from mountain grassland ecosystem (Holcus mollis, Hypericum maculatum, Festuca rubra, and Nardus stricta), using the gas exchange technique. Leaf temperature (TL) was adjusted within the range 13–30°C. The temperature responses of metabolic processes were modelled using the Arrhenius exponential function involving the temperature coefficient Q10. The increase of TL led to a significant increase of dark respiration rate (Q10 2.0 0.5), maximum carboxylation rate (VCmax; Q10 2.2 0.6), and maximum electron transport rate (Jmax; Q10 = 1.6 0.4). Contrariwise, Jmax/VCmax ratio linearly decreased with TL. However, TL did not control ratio between intercellular and ambient CO2 concentration, apparent quantum efficiency, and photon-saturated CO2 assimilation rate (Pmax). Pmax was primarily correlated with maximum stomatal conductance. Water use efficiency tended to decrease with TL. Temperature responses of carbon assimilation processes were studied in four dominant species from mountain grassland ecosystem (Holcus mollis, Hypericum maculatum, Festuca rubra, and Nardus stricta), using the gas exchange technique. Leaf temperature (TL) was adjusted within the range 13–30°C. The temperature responses of metabolic processes were modelled using the Arrhenius exponential function involving the temperature coefficient Q10. The increase of TL led to a significant increase of dark respiration rate (Q10 2.0 0.5), maximum carboxylation rate (VCmax; Q10 2.2 0.6), and maximum electron transport rate (Jmax; Q10 = 1.6 0.4). Contrariwise, Jmax/VCmax ratio linearly decreased with TL. However, TL did not control ratio between intercellular and ambient CO2 concentration, apparent quantum efficiency, and photon-saturated CO2 assimilation rate (Pmax). Pmax was primarily correlated with maximum stomatal conductance. Water use efficiency tended to decrease with TL. (en)
Title	Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem (en)
skos:prefLabel	Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem (en)
skos:notation	RIV/67179843:_____/07:00341994!RIV10-MZP-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(OC 627.001), P(SM/640/18/03), Z(AV0Z60870520)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Marek, Michal Vladimír Urban, Otmar Šprtová, Mirka Ač, Alexander
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	454488
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/07:00341994
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ambient and intercellular CO2 concentration; photosynthesis; water use efficiency (en)
http://linked.open.../riv/klicoveSlovo	water use efficiency ambient and intercellular CO2 concentration photosynthesis
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[EE0998309057]
http://linked.open...i/riv/nazevZdroje	Photosynthetica
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	CzechCarbo - Carbon cycle study focused on the terrestrical ecosystems in the Czech republic in connection on the CARBOEUROPE project http://linked.opendata.cz/resource/domain/vavai/projekt/OC%20627.001
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	45
http://linked.open...iv/tvurceVysledku	Urban, Otmar Marek, Michal V. Šprtová, Mirka Ač, Alexander Kalina, J. Priwitzer, T. Špunda, V.
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
issn	0300-3604
number of pages	10 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem Temperature dependences of carbon assimilation processes in four mountain grassland ecosystem

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