Patterns of variation in glycogen, free glucose and lactate in organs of supercooled hatchling painted turtles (Chrysemys picta)

Journal of Experimental Biology

Volumn 208, Issue 16, 2005, Pages 3169-3176

  Packard, Mary J ^a   Packard, Gary C ^a  

^a Veterinary Dentistry and Oral Surgery   (United States)

Author keywords

Brain; Glucose; Glycogen; Heart; Hibernation; Lactate; Liver; Metabolism; Supercooling; Turtle

Indexed keywords

GLUCOSE; GLYCOGEN; LACTIC ACID;

ANALYSIS OF VARIANCE; ANIMAL; ARTICLE; BRAIN; COLD; COMPARATIVE STUDY; HEART MUSCLE; HIBERNATION; LIVER; METABOLISM; PHYSIOLOGY; TIME; TURTLE;

ANALYSIS OF VARIANCE; ANIMALS; BRAIN; COLD; GLUCOSE; GLYCOGEN; HIBERNATION; LACTIC ACID; LIVER; MYOCARDIUM; TIME FACTORS; TURTLES;

ANIMALIA; CHRYSEMYS; CHRYSEMYS PICTA; TESTUDINES;

EID: 25144511024     PISSN: 00220949     EISSN: None     Source Type: Journal    
DOI: 10.1242/jeb.01743     Document Type: Article

References (33)

1. Allison, D. B., Paultre, F., Goran, M. I., Poehlman, E. T. and Heymsfield, S. B. (1995). Statistical considerations regarding the use of ratios to adjust data. Int. J. Obes. Relat. Metab. Disord. 19, 644-652.
2. Belkin, D. A. (1968). Anaerobic brain function: effects of stagnant and anoxic anoxia on persistence of breathing in reptiles. Science 162, 1017-1018.
3. Bing, O. H. L., Brooks, W. W., Inamdar, A. N. and Messer, J. V. (1972). Tolerance of isolated heart muscle to hypoxia: turtle vs. rat. Am. J. Physiol. 223, 1481-1485.
4. Birchard, G. F. and Packard, G. C. (1997). Cardiac activity in supercooled hatchlings of the painted turtle (Chrysemys picta). J. Herpetol. 31, 166-169.
5. Brachfeld, N., Ohtaka, Y., Klein, I. and Kawade, M. (1972). Substrate preference and metabolic activity of the aerobic and the hypoxic turtle heart. Circ. Res. 31, 453-467.
6. Clark, V. M. and Miller, A. T., Jr (1973). Studies on anaerobic metabolism in the fresh-water turtle (Pseudemys scripta elegans). Comp. Biochem. Physiol. A 44, 55-62.
7. Costanzo, J. P., Iverson, J. B., Wright, M. F. and Lee, R. E., Jr (1995). Cold hardiness and overwintering strategies of hatchlings in an assemblage of northern turtles. Ecology 76, 1772-1785.
8. Costanzo, J. P., Jones, E. E. and Lee, R. E., Jr (2001). Physiological responses to supercooling and hypoxia in the hatchling painted turtle, Chrysemys picta. J. Comp. Physiol. B 171, 335-340.
9. Daw, J. C., Wenger, D. P. and Berne, R. M. (1967). Relationship between cardiac glycogen and tolerance to anoxia in the western painted turtle, Chrysemys picta bellii. Comp. Biochem. Physiol. 22, 69-73.
10. DePari, J. A. (1996). Overwintering in the nest chamber by hatchling painted turtles, Chrysemys picta, in northern New Jersey. Chelon. Conserv. Biol. 2, 5-12.
11. Ernst, C. H., Barbour, R. W. and Lovich, J. E. (1994). Turtles of the United States and Canada. Washington, DC: Smithsonian Institution Press.
12. Hartley, L. M., Packard, M. J. and Packard, G. C. (2000). Accumulation of lactate by supercooled hatchlings of the painted turtle (Chrysemys picta): implications for overwinter survival. J. Comp. Physiol. B 170, 45-50.
13. Jackson, D. C. (2000). Living without oxygen: lessons from the freshwater turtle. Comp. Biochem. Physiol. A 125, 299-315.
14. Jackson, D. C. (2002). Hibernating without oxygen: physiological adaptations of the painted turtle. J. Physiol. 3, 731-737.
15. Jackson, D. C., Crocker, C. E. and Ultsch, G. R. (2001). Mechanisms of homeostasis during long-term diving and anoxia in turtles. Zoology 103, 150-156.
16. Kelly, D. A. and Storey, K. B. (1988). Organ-specific control of glycolysis in anoxic turtles. Am. J. Physiol. 255, R774-R779.
17. Keppler, D. and Decker, K. (1974). Glycogen determination with amyloglucosidase. In Methods of Enzymatic Analysis, vol. 3 (ed. H. U. Bergmeyer), pp. 1127-1131. New York: Academic Press.
18. Packard, G. C. (1997). Temperatures during winter in nests with hatchling painted turtles (Chrysemys picta). Herpetologica 53, 89-95.
19. Packard, G. C. and Boardman, T. J. (1999). The use of percentages and size-specific indices to normalize physiological data for variation in body size: wasted time, wasted effort? Comp. Biochem. Physiol. A 122, 37-44.
20. Packard, G. C. and Packard, M. J. (2003). Natural freeze-tolerance in hatchling painted turtles? Comp. Biochem. Physiol. A 134, 233-246.
21. Packard, G. C. and Packard, M. J. (2004a). To freeze or not to freeze: adaptations for overwintering by hatchlings of the North American painted turtle. J. Exp. Biol. 207, 2897-2906.
22. Packard, M. J. and Packard, G. C. (2004b). Accumulation of lactate by frozen painted turtles (Chrysemys picta) and its relationship to freeze tolerance. Physiol. Biochem. Zool. 77, 433-439.
23. Packard, M. J. and Packard, G. C. (in press). Lactate and free glucose in supercooled hatchling painted turtles (Chrysemys picta) exposed to natural and semi-natural thermal regimes. Fund. Ecol.
24. Packard, G. C., Fasano, S. L., Attaway, M. B., Lohmiller, L. D. and Lynch, T. L. (1997). Thermal environment for overwintering hatchlings of the painted turtle (Chrysemys picta). Can. J. Zool. 75, 401-406.
25. Packard, G. C., Packard, M. J., Lang, J. W. and Tucker, J. K. (1999). Tolerance for freezing in hatchling turtles. J. Herpetol. 33, 536-543.
26. Penney, D. G. (1974). Effects of prolonged diving anoxia on the turtle, Pseudemys scripta elegans. Comp. Biochem. Physiol. A 47, 933-941.
27. Poehlman, E. T. and Toth, M. J. (1995). Mathematical ratios lead to spurious conclusions regarding age- and sex-related differences in resting metabolic rate. Am. J. Clin. Nutr. 61, 482-485.
28. Raubenheimer, D. (1995). Problems with ratio analysis in nutritional studies. Funct. Ecol. 9, 21-29.
29. Reeves, R. B. (1963). Control of glycogen utilization and glucose uptake in the anaerobic turtle heart. Am. J. Physiol. 205, 23-29.
30. Storey, K. B., Storey, J. M., Brooks, S. P. J., Churchill, T. A. and Brooks, R. J. (1988). Hatchling turtles survive freezing during winter hibernation. Proc. Natl. Acad. Sci. USA 85, 8350-8354.
31. Ultsch, G. R. (1989). Ecology and physiology of hibernation and overwintering among freshwater fishes, turtles, and snakes. Biol. Rev. 64, 435-516.
32. Weisrock, D. W. and Janzen, F. J. (1999). Thermal and fitness-related consequences of nest location in painted turtles (Chrysemys picta). Funct. Ecol. 13, 94-101.
33. Wilbur, H. M. (1975). The evolutionary and mathematical demography of the turtle Chrysemys picta. Ecology 56, 64-77.