The effects of temperature on ATPase activity and force generation in skinned muscle fibers from the Pacific blue marlin (Makaira nigricans) |
| |
Authors: | J D Altringham I A Johnston |
| |
Institution: | (1) Department of Physiology and Pharmacology, University of St. Andrews, KY16 9TS St. Andrews, Fife, Scotland |
| |
Abstract: | Summary ATPase activity and force generation have been measured simultaneously in isolated, demembranated muscle fibers of the Pacific blue marlin (Makaira nigricans) between 0 and 30°C. Tension generation is relatively independent of temperature above 15°C and falls with a Q10 of <1.5 on decreasing the temperature to 0°C. In contrast, the Q10 for ATPase activity is 2.2 over the range 0–30°C. The results are interpreted in terms of the cross bridge theory of contraction. |
| |
Keywords: | Marlin muscle mechanics ATPase activity temperature skinned fibers |
本文献已被 SpringerLink 等数据库收录! |