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First published online April 26, 2005
Journal of Experimental Biology 208, 1601-1610 (2005)
Published by The Company of Biologists 2005
doi: 10.1242/jeb.01502

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Control of muscle bioenergetic gene expression: implications for allometric scaling relationships of glycolytic and oxidative enzymes

Christopher D. Moyes^* and Christophe M. R. LeMoine

Department of Biology, Queen's University, Kingston, Canada K7L 3N6

View larger version (21K): [in a new window]   Fig. 1. Mitochondrial and glycolytic enzyme activities in muscles of mammals (adapted from Emmett and Hochachka, 1981). PK, pyruvate kinase (U g-1); CS, citrate synthase (U g-1); body mass (g).

View larger version (18K): [in a new window]   Fig. 2. Relationship between pyruvate kinase activity and mRNA. PK shows positive allometric scaling (b=0.2). Larger fish (open circles) are able to produce more protein from a lower amount of mRNA (adapted from Burness et al., 1999). PK, pyruvate kinase (U g-1); body mass (g).