Carbon Fluxes in Potato (Solanum tuberosum) Remain Stable in Cell Cultures Exposed to Nutritional Phosphate Deficiency
Abstract
Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Chemicals and Plant Material
2.2. Isotopic Labeling Experiments
2.3. Statistics
3. Results
3.1. Tracer Uptake by +Pi and −Pi Cells
3.2. Metabolization of [U-14C]Suc by +Pi and −Pi Cells
3.3. Labeling of +Pi and −Pi Cells with NaH14CO3
3.4. Analysis of the Interaction between Cell Culture Age and C Fluxes
4. Discussion
4.1. Sugar Uptake Is Maintained in Potato Cell Cultures Subjected to Pi Deficiency
4.2. Sugar Catabolic Fluxes Are Similar in +Pi and −Pi Cells
4.3. Metabolism of NaH14CO3 in +Pi and −Pi Cells Allows a Better Understanding of the Role of PEPC in the Stability of Anaplerotic C Flux under Pi Deficiency
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameter | Cell Culture Age | Phosphate Regime | Phosphate Regime x Cell Culture Age | |||
---|---|---|---|---|---|---|
F | p | F | p | F | p | |
C uptake (μmol C h−1·g−1 FW) | 6.22 | 0.002 ** | 2.15 | 0.157 | 1.43 | 0.260 |
% CO2 in metabolized [U-14C]Suc | 4.92 | 0.013 * | 1.33 | 0.2667 | 0.849 | 0.4874 |
% Neutral fraction in metabolized [U-14C]Suc | 4.14 | 0.023 * | 0.74 | 0.401 | 0.214 | 0.8850 |
% Anionic fraction in metabolized [U-14C]Suc | 5.46 | 0.008 ** | 2.60 | 0.126 | 0.41 | 0.743 |
% Cationic fraction in metabolized [U-14C]Suc | 0.14 | 0.932 | 0.030 | 0.865 | 0.188 | 0.903 |
Suc to CO2 flux (μmol C h−1 g−1 FW) | 11.16 | 3.37 × 10−4 *** | 3.22 | 0.0916 | 2.94 | 0.064 |
Anaplerotic CO2 assimilation (μmol C h−1 g−1 FW) | 83.9 | 5.25 × 10−10 *** | 3.03 | 0.100 | 5.25 | 0.010 * |
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He, J.Z.; Dorion, S.; Carmona-Rojas, L.M.; Rivoal, J. Carbon Fluxes in Potato (Solanum tuberosum) Remain Stable in Cell Cultures Exposed to Nutritional Phosphate Deficiency. Biology 2023, 12, 1190. https://doi.org/10.3390/biology12091190
He JZ, Dorion S, Carmona-Rojas LM, Rivoal J. Carbon Fluxes in Potato (Solanum tuberosum) Remain Stable in Cell Cultures Exposed to Nutritional Phosphate Deficiency. Biology. 2023; 12(9):1190. https://doi.org/10.3390/biology12091190
Chicago/Turabian StyleHe, Jiang Zhou, Sonia Dorion, Laura Michell Carmona-Rojas, and Jean Rivoal. 2023. "Carbon Fluxes in Potato (Solanum tuberosum) Remain Stable in Cell Cultures Exposed to Nutritional Phosphate Deficiency" Biology 12, no. 9: 1190. https://doi.org/10.3390/biology12091190
APA StyleHe, J. Z., Dorion, S., Carmona-Rojas, L. M., & Rivoal, J. (2023). Carbon Fluxes in Potato (Solanum tuberosum) Remain Stable in Cell Cultures Exposed to Nutritional Phosphate Deficiency. Biology, 12(9), 1190. https://doi.org/10.3390/biology12091190