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Figure 5


Fig. 5. Mantle organ metabolic status vs temperature. (A) A set of spectra obtained on animal 1 at different temperatures. Note increases in inorganic phosphate (Pi) peak area towards high and low temperatures. (B) ATP and Pi concentrations; (C) phospho-L-arginine (PLA) concentration; (D) intracellular pH (pHi). N=5 animals per temperature. Error bars represent standard deviation. Data derived from in vivo 31P NMR spectra. Concentrations of metabolites are proportional to the area under their respective peaks in the 31P NMR spectrum.