The effect of elevated CO2 on photosynthesis is modulated by nitrogen supply and reduced water availability in Picea abies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F23%3A00573106" target="_blank" >RIV/86652079:_____/23:00573106 - isvavai.cz</a>
Alternative codes found
RIV/62156489:43210/23:43923415 RIV/62156489:43410/23:43923415
Result on the web
<a href="https://academic.oup.com/treephys/article/43/6/925/7067529?login=true" target="_blank" >https://academic.oup.com/treephys/article/43/6/925/7067529?login=true</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/treephys/tpad024" target="_blank" >10.1093/treephys/tpad024</a>
Alternative languages
Result language
angličtina
Original language name
The effect of elevated CO2 on photosynthesis is modulated by nitrogen supply and reduced water availability in Picea abies
Original language description
It is assumed that the stimulatory effects of elevated CO2 concentration ([CO2]) on photosynthesis and growth may be substantially reduced by co-occurring environmental factors and the length of CO2 treatment. Here, we present the study exploring the interactive effects of three manipulated factors ([CO2], nitrogen supply and water availability) on physiological (gas-exchange and chlorophyll fluorescence), morphological and stoichiometric traits of Norway spruce (Picea abies) saplings after 2 and 3 years of the treatment under natural field conditions. Such multifactorial studies, going beyond two-way interactions, have received only limited attention until now. Our findings imply a significant reduction of [CO2]-enhanced rate of CO2 assimilation under reduced water availability which deepens with the severity of water depletion. Similarly, insufficient nitrogen availability leads to a down-regulation of photosynthesis under elevated [CO2] being particularly associated with reduced carboxylation efficiency of the Rubisco enzyme. Such adjustments in the photosynthesis machinery result in the stimulation of water-use efficiency under elevated [CO2] only when it is combined with a high nitrogen supply and reduced water availability. These findings indicate limited effects of elevated [CO2] on carbon uptake in temperate coniferous forests when combined with naturally low nitrogen availability and intensifying droughts during the summer periods. Such interactions have to be incorporated into the mechanistic models predicting changes in terrestrial carbon sequestration and forest growth in the future.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40102 - Forestry
Result continuities
Project
<a href="/en/project/EF16_019%2F0000797" target="_blank" >EF16_019/0000797: SustES - Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Tree Physiology
ISSN
0829-318X
e-ISSN
1758-4469
Volume of the periodical
43
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
925-937
UT code for WoS article
000960357700001
EID of the result in the Scopus database
2-s2.0-85163183778