Does long-term cultivation of saplings under elevated CO2 concentration influence their photosynthetic response to temperature?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F15%3A00443713" target="_blank" >RIV/67179843:_____/15:00443713 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1093/aob/mcv043" target="_blank" >http://dx.doi.org/10.1093/aob/mcv043</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcv043" target="_blank" >10.1093/aob/mcv043</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Does long-term cultivation of saplings under elevated CO2 concentration influence their photosynthetic response to temperature?

Popis výsledku v původním jazyce

BACKGROUND AND AIMS:Plants growing under elevated atmospheric CO2 concentrations often have reduced stomatal conductance and subsequently increased leaf temperature. This study therefore tested the hypothesis that under long-term elevated CO2 the temperature optima of photosynthetic processes will shift towards higher temperatures and the thermostability of the photosynthetic apparatus will increase. METHODS: The hypothesis was tested for saplings of broadleaved Fagus sylvatica and coniferous Picea abies exposed for 4-5 years to either ambient (AC; 385??mol?mol-1) or elevated (EC; 700??mol?mol-1) CO2 concentrations. Temperature response curves of photosynthetic processes were determined by gas-exchange and chlorophyll fluorescence techniques. KEY RESULTS: Initial assumptions of reduced light-saturated stomatal conductance and increased leaf temperatures for EC plants were confirmed. Temperature response curves revealed stimulation of light-saturated rates of CO2 assimilation (Amax) and

Název v anglickém jazyce

Does long-term cultivation of saplings under elevated CO2 concentration influence their photosynthetic response to temperature?

Popis výsledku anglicky

BACKGROUND AND AIMS:Plants growing under elevated atmospheric CO2 concentrations often have reduced stomatal conductance and subsequently increased leaf temperature. This study therefore tested the hypothesis that under long-term elevated CO2 the temperature optima of photosynthetic processes will shift towards higher temperatures and the thermostability of the photosynthetic apparatus will increase. METHODS: The hypothesis was tested for saplings of broadleaved Fagus sylvatica and coniferous Picea abies exposed for 4-5 years to either ambient (AC; 385??mol?mol-1) or elevated (EC; 700??mol?mol-1) CO2 concentrations. Temperature response curves of photosynthetic processes were determined by gas-exchange and chlorophyll fluorescence techniques. KEY RESULTS: Initial assumptions of reduced light-saturated stomatal conductance and increased leaf temperatures for EC plants were confirmed. Temperature response curves revealed stimulation of light-saturated rates of CO2 assimilation (Amax) and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Annals of Botany

ISSN

0305-7364

e-ISSN

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Svazek periodika

116

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

929-939

Kód UT WoS článku

000365134800008

EID výsledku v databázi Scopus

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