The relative availability of inorganic carbon and inorganic nitrogen influences the response of the dinoflagellate Protoceratium reticulatum to elevated CO2
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F17%3A00474561" target="_blank" >RIV/61388971:_____/17:00474561 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/jpy.12463" target="_blank" >http://dx.doi.org/10.1111/jpy.12463</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jpy.12463" target="_blank" >10.1111/jpy.12463</a>
Alternative languages
Result language
angličtina
Original language name
The relative availability of inorganic carbon and inorganic nitrogen influences the response of the dinoflagellate Protoceratium reticulatum to elevated CO2
Original language description
This work originates from three facts: (i) changes in CO2 availability influence metabolic processes in algal cells, (ii) Spatial and temporal variations of nitrogen availability cause repercussions on phytoplankton physiology, (iii) Growth and cell composition are dependent on the stoichiometry of nutritional resources. In this study, we assess whether the impact of rising pCO(2) is influenced by N availability, through the impact that it would have on the C/N stoichiometry, in conditions of N sufficiency. Our experiments used the dinoflagellate Protoceratium reticulatum, which we cultured under three CO2 regimes (400, 1,000, and 5,000 ppmv, pH of 8.1) and either variable (the NO3- concentration was always 2.5 mmol.L-1) or constant (NO3- concentration varied to maintain the same Ci/NO3- ratio at all pCO(2)) C-i/NO3- ratio. Regardless of N availability, cells had higher specific growth rates, but lower cell dry weight and C and N quotas, at elevated CO2. The carbohydrate pool size and the C/N was unaltered in all treatments. The lipid content only decreased at high pCO(2) at constant Ci/NO3- ratio. In the variable Ci/NO3- conditions, the relative abundance of Rubisco (and other proteins) also changed, this did not occur at constant Ci/NO3-. Thus, the biomass quality of P. reticulatum for grazers was affected by the Ci/NO3- ratio in the environment and not only by the pCO(2), both with respect to the size of the main organic pools and the composition of the expressed proteome.
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
10606 - Microbiology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Phycology
ISSN
0022-3646
e-ISSN
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Volume of the periodical
53
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
298-307
UT code for WoS article
000399745800006
EID of the result in the Scopus database
2-s2.0-84999016807