The Structure of Pigeon Breast Muscle Mitochondria
نویسنده
چکیده
The structure of pigeon breast muscle mitochondria was studied both in whole muscle tissue and in mitochondrial fractions separated by differential centrifugation. No evidence was found to indicate that the mitochondria of pigeon breast muscle differ in any fundamental way from those of other tissues. In particular the absence of an enveloping membrane, claimed in recent reports, was not confirmed. The structure of the lipide bodies present in muscle has been described, and compared with that of similar bodies in other tissues.
منابع مشابه
The Relationship between Cytochondria and Myofibrils in Pigeon Skeletal Muscle
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MITOCHONDRIA IN PIGEON BREAST MUSCLE ARE COMPOSED OF TWO PROTEIN GELS: a fibrous gel, in the form of a folded ribbon, enclosed within a non-fibrous matrix. An external limiting "membrane" is not demonstrated, and there is poor demarcation between the mitochondria and adjacent structures or sarcoplasm. No internal structure has been determined for sarcosomes. These structures, however, are sympl...
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The contribution of nyoglobin to the oxygen uptake of red skeletal muscle was estimated from the difference in oxygen uptake with and without functional myoglobin. The oxygen uptake of bundles (25 mm long, 0.5 mm mean diameter) of muscle fibers teased from pigeon breast muscle was measured in families of steady states of oxygen pressure from 0 to 250 mm Hg. The oxygen-binding function of myoglo...
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Braunstein and Kritzmann (1) have reported that with pigeon breast muscle any a-amino acid, with the possible exception of glycine, is active in transamination with either a-ketoglutaric or oxaloacetic acid. On the other hand, the author (2) found that transamination in pigeon breast muscle is limited to the following reactions. a (1) Z(+)-Glutamic acid + oxaloacetic acid e a-ketoglutaric acid ...
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ورودعنوان ژورنال:
- The Journal of Biophysical and Biochemical Cytology
دوره 2 شماره
صفحات -
تاریخ انتشار 1956