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Gnaiger 1980 Thermochim Acta - Revision history
2024-03-28T18:41:02Z
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Gnaiger Erich at 05:18, 9 February 2024
2024-02-09T05:18:33Z
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<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223. <ins style="font-weight: bold; text-decoration: none;">https://doi.org/10.1016/0040-6031(80)87186-3</ins></div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|info=[https://www.sciencedirect.com/science/article/abs/pii/0040603180871863 sciencedirect]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|info=[https://www.sciencedirect.com/science/article/abs/pii/0040603180871863 sciencedirect<ins style="font-weight: bold; text-decoration: none;">] [[File:PDF.jpg|100px|link=https://wiki.oroboros.at/images/4/4f/Gnaiger_1980_Thermochim_Acta.pdf |Bioblast pdf]</ins>]</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|authors=Gnaiger Erich</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|authors=Gnaiger Erich</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, ''C''<sup>d</sup><sub>∞ATP</sub> varies from 76 to 83 kJ·mol<sup>−1</sup> ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic ''C''<sup>d</sup><sub>∞ATP</sub>. This reduction amounts to up to 30 % in lactate and ethanol fermentation of glucose and from 30 to 50 % in propionate and acetate fermentation. Hence anoxic rates of heat production may be significantly less than the aerobic rate without a corresponding reduction of metabolic rate expressed as ATP-turnover. Direct comparison of rates of heat dissipation observed under different physiological conditions may lead to erroneous conclusions regarding the metabolic activity of organisms.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, ''C''<sup>d</sup><sub>∞ATP</sub> varies from 76 to 83 kJ·mol<sup>−1</sup> ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic ''C''<sup>d</sup><sub>∞ATP</sub>. This reduction amounts to up to 30 % in lactate and ethanol fermentation of glucose and from 30 to 50 % in propionate and acetate fermentation. Hence anoxic rates of heat production may be significantly less than the aerobic rate without a corresponding reduction of metabolic rate expressed as ATP-turnover. Direct comparison of rates of heat dissipation observed under different physiological conditions may lead to erroneous conclusions regarding the metabolic activity of organisms.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Organisms <del style="font-weight: bold; text-decoration: none;">growingaerobically </del>on glucose may theoretically conserve up to, but rather less than 25 % of the catabolic reaction enthalpy in net biosynthesis. Uncertainties of energy balance calculations, however, stem primarily from the variability of physiological "side reactions", such as enthalpies of neutralization and complexation. Their significance in the estimation of caloric efficiencies of metabolism is discussed on the basis of the present state of biological thermochemistry. An experimental example with aquatic invertebrates illustrates the unique potential of the direct calorimetric method in quantitative bioenergetics, while it also points to some specific problems associated with the biochemical interpretation of thermometric measurements.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Organisms <ins style="font-weight: bold; text-decoration: none;">growing aerobically </ins>on glucose may theoretically conserve up to, but rather less than 25 % of the catabolic reaction enthalpy in net biosynthesis. Uncertainties of energy balance calculations, however, stem primarily from the variability of physiological "side reactions", such as enthalpies of neutralization and complexation. Their significance in the estimation of caloric efficiencies of metabolism is discussed on the basis of the present state of biological thermochemistry. An experimental example with aquatic invertebrates illustrates the unique potential of the direct calorimetric method in quantitative bioenergetics, while it also points to some specific problems associated with the biochemical interpretation of thermometric measurements.</div></td></tr>
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Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=224589&oldid=prev
Gnaiger Erich at 19:37, 13 February 2022
2022-02-13T19:37:37Z
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Gnaiger Erich
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Gnaiger Erich at 17:25, 13 February 2022
2022-02-13T17:25:09Z
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Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=222146&oldid=prev
Gnaiger Erich at 17:17, 22 November 2021
2021-11-22T17:17:42Z
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223.</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">|info=[https://www.sciencedirect.com/science/article/abs/pii/0040603180871863 sciencedirect]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|authors=Gnaiger Erich</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|authors=Gnaiger Erich</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td></tr>
</table>
Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=222145&oldid=prev
Gnaiger Erich at 17:15, 22 November 2021
2021-11-22T17:15:55Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:15, 22 November 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|organism=Annelids</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|organism=Annelids</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|preparations=Intact organism</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|preparations=Intact organism</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|topics=ATP production, pH</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|topics=ATP production<ins style="font-weight: bold; text-decoration: none;">, Coupling efficiency;uncoupling</ins>, pH</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|additional=Microcalorimetry</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|additional=Microcalorimetry</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
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Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=222144&oldid=prev
Gnaiger Erich at 17:15, 22 November 2021
2021-11-22T17:15:19Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:15, 22 November 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, ''C''<sup>d</sup><sub>∞ATP</sub> varies from 76 to 83 kJ·mol<sup>−1</sup> ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic ''C''<sup>d</sup><sub>∞ATP</sub>. This reduction amounts to up to 30 % in lactate and ethanol fermentation of glucose and from 30 to 50 % in propionate and acetate fermentation. Hence anoxic rates of heat production may be significantly less than the aerobic rate without a corresponding reduction of metabolic rate expressed as ATP-turnover. Direct comparison of rates of heat dissipation observed under different physiological conditions may lead to erroneous conclusions regarding the metabolic activity of organisms.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, ''C''<sup>d</sup><sub>∞ATP</sub> varies from 76 to 83 kJ·mol<sup>−1</sup> ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic ''C''<sup>d</sup><sub>∞ATP</sub>. This reduction amounts to up to 30 % in lactate and ethanol fermentation of glucose and from 30 to 50 % in propionate and acetate fermentation. Hence anoxic rates of heat production may be significantly less than the aerobic rate without a corresponding reduction of metabolic rate expressed as ATP-turnover. Direct comparison of rates of heat dissipation observed under different physiological conditions may lead to erroneous conclusions regarding the metabolic activity of organisms.</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Organisms growingaerobically on glucose may theoretically conserve up to, but rather less than 25 % of the catabolic reaction enthalpy in net biosynthesis. Uncertainties of energy balance calculations, however, stem primarily from the variability of physiological "side reactions", such as enthalpies of neutralization and complexation. Their significance in the estimation of caloric efficiencies of metabolism is discussed on the basis of the present state of biological thermochemistry. An experimental example with aquatic invertebrates illustrates the unique potential of the direct calorimetric method in quantitative bioenergetics, while it also points to some specific problems associated with the biochemical interpretation of thermometric measurements.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|editor=Gnaiger E</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|editor=Gnaiger E</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=AT Innsbruck Oroboros</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=AT Innsbruck Oroboros</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Organisms growingaerobically on glucose may theoretically conserve up to, but rather less than 25 % of the catabolic reaction enthalpy in net biosynthesis. Uncertainties of energy balance calculations, however, stem primarily from the variability of physiological "side reactions", such as enthalpies of neutralization and complexation. Their significance in the estimation of caloric efficiencies of metabolism is discussed on the basis of the present state of biological thermochemistry. An experimental example with aquatic invertebrates illustrates the unique potential of the direct calorimetric method in quantitative bioenergetics, while it also points to some specific problems associated with the biochemical interpretation of thermometric measurements.</del></div></td><td colspan="2"></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=Respiration</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=Respiration</div></td></tr>
</table>
Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=222143&oldid=prev
Gnaiger Erich at 17:14, 22 November 2021
2021-11-22T17:14:57Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:14, 22 November 2021</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|year=1980</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|journal=Thermochim Acta</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|journal=Thermochim Acta</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>|abstract=The turnover rate of ATP is one of the most general bioenergetic quantities independent of the type of metabolism (aerobic or fermentative) and of the coupling efficiency (P/<del style="font-weight: bold; text-decoration: none;">2e− </del>ratio etc.). It links the various processes of catabolism and anabolism as an expression of the “biochemical speed of rotation”. Similarly, the rate of heat production is considered an unspecific measure of metabolic rate applicable under aerobic and anoxic conditions. The interpretation of biocalorimetric data in terms of ATP-turnover, however, requires a detailed thermochemical analysis of the biochemical pathways, i.e., of their stoichiometries and reaction enthalpies under physiological conditions, and of the molar ATP equivalent of any particular pathway. Such analyses are presented for aerobic and fermentative catabolism characteristic of organisms ranging from bacteria to higher animals including man.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|abstract=The turnover rate of ATP is one of the most general bioenergetic quantities independent of the type of metabolism (aerobic or fermentative) and of the coupling efficiency (P/<ins style="font-weight: bold; text-decoration: none;">2e<sup>−</sup> </ins>ratio etc.). It links the various processes of catabolism and anabolism as an expression of the “biochemical speed of rotation”. Similarly, the rate of heat production is considered an unspecific measure of metabolic rate applicable under aerobic and anoxic conditions. The interpretation of biocalorimetric data in terms of ATP-turnover, however, requires a detailed thermochemical analysis of the biochemical pathways, i.e., of their stoichiometries and reaction enthalpies under physiological conditions, and of the molar ATP equivalent of any particular pathway. Such analyses are presented for aerobic and fermentative catabolism characteristic of organisms ranging from bacteria to higher animals including man.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, <del style="font-weight: bold; text-decoration: none;">cdωATP </del>varies from 76 to 83 <del style="font-weight: bold; text-decoration: none;">kJ.mol−1 </del>ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic <del style="font-weight: bold; text-decoration: none;">Cd∞ATP</del>. This reduction amounts to up to 30% in lactate and ethanol fermentation of glucose and from 30 to 50% in propionate and acetate fermentation. Hence anoxic rates of heat</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The caloric equivalent of disspative ATP-turnover under non-growing conditions, <ins style="font-weight: bold; text-decoration: none;">''C''<sup>d</sup><sub>∞ATP</sub> </ins>varies from 76 to 83 <ins style="font-weight: bold; text-decoration: none;">kJ·mol<sup>−1</sup> </ins>ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic <ins style="font-weight: bold; text-decoration: none;">''C''<sup>d</sup><sub>∞ATP</sub></ins>. This reduction amounts to up to 30 % in lactate and ethanol fermentation of glucose and from 30 to 50 % in propionate and acetate fermentation. Hence anoxic rates of heat <ins style="font-weight: bold; text-decoration: none;">production may be significantly less than the aerobic rate without a corresponding reduction of metabolic rate expressed as ATP-turnover. Direct comparison of rates of heat dissipation observed under different physiological conditions may lead to erroneous conclusions regarding the metabolic activity of organisms.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|editor=Gnaiger E</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|editor=Gnaiger E</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=AT Innsbruck Oroboros</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|mipnetlab=AT Innsbruck Oroboros</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>}}</div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Organisms growingaerobically on glucose may theoretically conserve up to, but rather less than 25 % of the catabolic reaction enthalpy in net biosynthesis. Uncertainties of energy balance calculations, however, stem primarily from the variability of physiological "side reactions", such as enthalpies of neutralization and complexation. Their significance in the estimation of caloric efficiencies of metabolism is discussed on the basis of the present state of biological thermochemistry. An experimental example with aquatic invertebrates illustrates the unique potential of the direct calorimetric method in quantitative bioenergetics, while it also points to some specific problems associated with the biochemical interpretation of thermometric measurements.</ins></div></td></tr>
<tr><td colspan="2"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Labeling</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=Respiration</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>|area=Respiration</div></td></tr>
</table>
Gnaiger Erich
https://wiki.oroboros.at/index.php?title=Gnaiger_1980_Thermochim_Acta&diff=222142&oldid=prev
Gnaiger Erich: Created page with "{{Publication |title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223. |authors=Gnaiger Erich |y..."
2021-11-22T17:02:41Z
<p>Created page with "{{Publication |title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223. |authors=Gnaiger Erich |y..."</p>
<p><b>New page</b></p><div>{{Publication<br />
|title=Gnaiger E (1980) Das kalorische Äquivalent des ATP-Umsatzes im aeroben und anoxischen Metabolismus. Thermochim Acta 40:195-223.<br />
|authors=Gnaiger Erich<br />
|year=1980<br />
|journal=Thermochim Acta<br />
|abstract=The turnover rate of ATP is one of the most general bioenergetic quantities independent of the type of metabolism (aerobic or fermentative) and of the coupling efficiency (P/2e− ratio etc.). It links the various processes of catabolism and anabolism as an expression of the “biochemical speed of rotation”. Similarly, the rate of heat production is considered an unspecific measure of metabolic rate applicable under aerobic and anoxic conditions. The interpretation of biocalorimetric data in terms of ATP-turnover, however, requires a detailed thermochemical analysis of the biochemical pathways, i.e., of their stoichiometries and reaction enthalpies under physiological conditions, and of the molar ATP equivalent of any particular pathway. Such analyses are presented for aerobic and fermentative catabolism characteristic of organisms ranging from bacteria to higher animals including man.<br />
<br />
The caloric equivalent of disspative ATP-turnover under non-growing conditions, cdωATP varies from 76 to 83 kJ.mol−1 ATP in aerobic metabolism, assuming a P/O-ratio of 3. In contrast to the uniform catabolic pathway in aerobic organisms a variety of fermentative reactions exists which differ with respect to reaction enthalpy and efficiency of phosphorylation. Under anoxia the caloric equivalent of ATP turnover is reduced under most conditions relative to the aerobic Cd∞ATP. This reduction amounts to up to 30% in lactate and ethanol fermentation of glucose and from 30 to 50% in propionate and acetate fermentation. Hence anoxic rates of heat<br />
|editor=Gnaiger E<br />
|mipnetlab=AT Innsbruck Oroboros<br />
}}<br />
{{Labeling<br />
|area=Respiration<br />
|injuries=Hypoxia<br />
|organism=Annelids<br />
|preparations=Intact organism<br />
|topics=ATP production, pH<br />
|additional=Microcalorimetry<br />
}}</div>
Gnaiger Erich