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Keywords: white muscle
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Journal Articles
J Exp Biol (2011) 214 (11): 1888–1895.
Published: 1 June 2011
...). Though well studied in mammals, the mechanisms by which these factors control mitochondrial content have been less studied in lower vertebrates. We evaluated the role of these transcriptional regulators in seasonal changes in white muscle cytochrome c oxidase (COX) activity in eight local fish species...
Journal Articles
J Exp Biol (2011) 214 (8): 1230–1239.
Published: 15 April 2011
...Carolina Priester; Lindsay C. Morton; Stephen T. Kinsey; Wade O. Watanabe; Richard M. Dillaman SUMMARY This study investigated the influence of fiber size on the distribution of nuclei and fiber growth patterns in white muscle of black sea bass, Centropristis striata, ranging in body mass from 0.45...
Journal Articles
J Exp Biol (2009) 212 (22): 3708–3718.
Published: 15 November 2009
... of heat conservation in the red and the white muscle so as to make the output of the model agree as closely as possible with observed cross-sectional isotherms. In modeling the latter situation, we applied the heat exchanger efficiencies from the steady-state model to predict the distribution...
Journal Articles
J Exp Biol (2006) 209 (5): 871–880.
Published: 1 March 2006
... derived lactate is glycogenic, which suggests intracellular compartmentation of lactate metabolism. In rainbow trout, high intensity, burst-type exercise is powered primarily by white muscle, fueled by glycogenolysis and anaerobic glycolysis, and fish rapidly exhaust (e.g. Milligan,1996 ; Richards...
Journal Articles
J Exp Biol (2004) 207 (17): 2979–2990.
Published: 1 August 2004
... established two groups of cod that were fed or starved for 12 weeks. We evaluated sprint swimming and U crit performance as well as the speed at which repeated burst-coast movements began in the U crit test before measuring the metabolic capacities of red and white muscle sampled caudally,centrally...
Journal Articles
J Exp Biol (2003) 206 (3): 503–511.
Published: 1 February 2003
... capacities of white muscle more than those of red muscle. The levels of glycolytic enzymes and glycogen changed more in white than red muscle during starvation. Both in fed and starved cod, muscle metabolic capacities varied with position along the fish;starvation reduced this longitudinal variation more...
Journal Articles
J Exp Biol (2003) 206 (3): 543–549.
Published: 1 February 2003
...Rainie L. Sharpe; C. Louise Milligan SUMMARY Lactic acid is produced as an end product of glycolysis in rainbow trout white muscle following exhaustive exercise. The metabolically produced lactic acid causes an intramuscular acidosis that must be cleared, either via net transport out of the muscle...
Journal Articles
J Exp Biol (2002) 205 (14): 2067–2077.
Published: 15 July 2002
....) elevation of red muscle PDH activity (approx. 1600 nmol g -1 wet tissue min -1 ). Significant 67% decreases in white muscle creatine phosphate and 73% decreases in glycogen levels, without matching increases in lactate levels, point to significant recruitment of white muscle during high-speed swimming...
Journal Articles
J Exp Biol (2001) 204 (24): 4249–4257.
Published: 15 December 2001
...Tierney M. Thys; Jason M. Blank; David J. Coughlin; Fred Schachat SUMMARY The present study investigates muscle protein expression in largemouth bass Micropterus salmoides through intra- and intermyomeric comparisons of white muscle. Using denaturing SDS-polyacrylamide gel electrophoresis, muscle...
Journal Articles
J Exp Biol (2001) 204 (23): 4043–4054.
Published: 1 December 2001
... and the viscera. Red muscle, white muscle and stomach temperatures were measured in juvenile (5–13.6 kg) makos swimming steadily in a water tunnel and exposed to stepwise square-wave changes in ambient temperature ( T a ) to estimate the rates of heat transfer and to determine their capacity for the activity...
Journal Articles
J Exp Biol (2001) 204 (17): 3009–3018.
Published: 1 September 2001
..., respectively. Northern blot analysis revealed that in adults both transcripts were expressed in fast white muscle only. MLC2 appeared earlier in development: MLC2 transcripts were detectable from the beginning of segmentation, whereas MLC3 transcripts did not appear until 27h post-fertilisation...
Journal Articles
J Exp Biol (2001) 204 (13): 2221–2230.
Published: 1 July 2001
... the body. We report the first results on the mechanical properties of the red and white muscles of an anguilliform swimmer, Anguilla anguilla . Small preparations (0.147–1.335mg dry mass) were dissected from positions at fractions of 0.2, 0.4, 0.6 and 0.8 of total body length ( BL ). We determined the time...
Journal Articles
J Exp Biol (1992) 169 (1): 235–249.
Published: 1 August 1992
... in white muscle by bicarbonate infusion resulted in retention of ammonia in the muscle, indicating that ammonia excretion across the muscle membrane might be enhanced by the hydration of excreted CO 2 in the extracellular fluid. Passive diffusion of NH 3 , rather than NH 4 + transfer, is probably...
Journal Articles
J Exp Biol (1990) 149 (1): 45–60.
Published: 1 March 1990
...), pyruvate and lactate were measured on extracts from freeze-dried white muscle. Trained fish swam 14% further in 2 min, with 90% of this difference occurring between 20 and 50 s. Trained fish accumulated 32% more lactate, but showed no differences in glycogen or PCr depletion, and 22 % less ATP depletion...
Journal Articles
J Exp Biol (1988) 137 (1): 13–27.
Published: 1 July 1988
...Susan J. Roberts; Mary Sue Lowery; George N. Somero ABSTRACT The binding of phosphofructokinase (PFK) to myofibrils from the white muscle of the fish Paralabrax nebulifer (Girard, 1854) is sensitive to factors known to be allosteric regulators of PFK activity. PFK in Triton-X-100-extracted muscle...