Elevated carbon dioxide alleviates the negative impact of drought on wheat by modulating plant metabolism and physiology
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F21%3A00542773" target="_blank" >RIV/86652079:_____/21:00542773 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S037837742100069X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S037837742100069X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.agwat.2021.106804" target="_blank" >10.1016/j.agwat.2021.106804</a>
Alternative languages
Result language
angličtina
Original language name
Elevated carbon dioxide alleviates the negative impact of drought on wheat by modulating plant metabolism and physiology
Original language description
This study was conducted to understand the mechanism of wheat yield decrease under drought stress and the role of CO2 in modulating physiological and metabolic drought effects. Wheat was grown under ambient and elevated CO2 (400 and 800 ppm, respectively), and plants were subjected to drought stress prior to anthesis. Photosynthetic rate (An), stomatal conductance (Gs), transpiration rate (E) and activities of carbohydrate metabolic enzymes were decreased in leaf and increased in spikes during drought. Total antioxidant potential (TAP) was decreased under drought both in leaf and spike. Grain yield parameters were again reduced under drought, while An, E and most of the yield traits were increased under elevated CO2. The number of grains spike-1 correlated positively with An, TAP and cell wall invertase activity, while it negatively correlated with ascorbate peroxidase, cell wall peroxidase and glutathione reductase activities in leaves. Thousand kernel weight positively correlated with leaf phosphoglucoisomerase and spike glucose-6-phosphate dehydrogenase activities. This indicates that elevated CO2 could boost CO2 assimilation through an increase in antioxidant potential and facilitate more photosynthate supply via various increased carbohydrate metabolic enzyme activities, and thus increases yield. This could be a possible mechanism of grain yield increase caused by elevated CO2.
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
40101 - Agriculture
Result continuities
Project
<a href="/en/project/LO1415" target="_blank" >LO1415: CzechGlobe 2020 – Development of the Centre of Global Climate Change Impacts Studies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Agricultural Water Management
ISSN
0378-3774
e-ISSN
1873-2283
Volume of the periodical
250
Issue of the periodical within the volume
MAY
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
106804
UT code for WoS article
000636459600002
EID of the result in the Scopus database
2-s2.0-85102279999