ULTRASTRUCTURE AND ADENOSINE TRIPHOSPHATASE ACTIVITY OF RED AND WHITE MUSCLE FIBERS OF THE CAUDAL REGION OF A FISH, SALMO GAIRDNERI
Open Access
- 1 October 1972
- journal article
- Published by Rockefeller University Press in The Journal of cell biology
- Vol. 55 (1), 42-57
- https://doi.org/10.1083/jcb.55.1.42
Abstract
Electron microscopy, together with quantitation using a tracing device linked to a digital computer, reveals that the red and white muscle fibers of Salmo gairdneri differ in diameter, organization of myofibrils, dimensions of myofilaments, volumes and surface areas of T system and sarcoplasmic reticulum, morphology of mitochondria, and content of mitochondria, lipid, and glycogen. Biochemical studies show that the ATPase activity of white fibers is three times that of the red fibers. Actomyosin content of red fibers is higher than that of the white fibers. The functional significance of these differences between two fiber types is discussed.Keywords
This publication has 18 references indexed in Scilit:
- Functional morphology of the caudal region of certain clupeiform and perciform fishes with reference to the taxonomyJournal of Morphology, 1967
- The Equivalent Circuit of Single Crab Muscle Fibers As Determined by Impedance Measurements with Intracellular ElectrodesThe Journal of general physiology, 1967
- Role of Red and White Muscles in the Swimming of the Skipjack TunaNature, 1967
- MOTOR NERVE ENDINGS OF TWITCH MUSCLE FIBERS IN HIPPOCAMPUS HUDSONIUS The Journal of cell biology, 1967
- Studies on the Fine Structure of Red and White Fin Muscles of the Fish (Carassius auratus)Archivum histologicum japonicum, 1967
- A COMPARISON OF THE FINE STRUCTURES OF FROG SLOW AND TWITCH MUSCLE FIBRESThe Journal of cell biology, 1965
- THE ULTRASTRUCTURE OF THE Z DISC IN SKELETAL MUSCLEThe Journal of cell biology, 1962
- THE FINE STRUCTURE OF NEUROMUSCULAR JUNCTIONS AND THE SARCOPLASMIC RETICULUM OF EXTRINSIC EYE MUSCLES OF FUNDULUS HETEROCLITUS The Journal of cell biology, 1961
- The structure of extrafusal muscle fibers in the frog and their innervation studied by the cholinesterase techniqueJournal of Anatomy, 1960
- Function of the Red Muscle in FishNature, 1956