ISSN:
0362-2525
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
In the hepatic cells of well-fed salamanders (Triturus pyrrhogaster) elongated mitochondria predominate which exhibit a diversity of shapes. Starvation tends gradually to produce a shift in predominance from the elongated to the granular forms of mitochondria; terminally looped and ring-shaped mitochondria also characteristic of the well-fed condition, gradually become rare to absent. Beaded elongated mitochondria increase in number after short periods of fasting, and appear to be transitional between smooth elongated mitochondria and granular mitochondria.Re-feeding tends to bring about a recovery of the mitochondrial picture of the well-fed animals.There are exceptions to the above general trend which show that the length of starvation and digestive activity are not the only factors that account for the changes in the mitochondrial condition. A closer relation is found between the mitochondrial condition and the relative amounts of fat and glycogen in the cell. It can be stated as a rule that the shift in predominance from elongated mitochondria to granular mitochondria parallels the decrease in amount of fat and glycogen in the cell.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jmor.1050640103
