THE SARCOPLASMIC RETICULUM OF STRIATED MUSCLE OF A CYCLOPOID COPEPOD
نویسندگان
چکیده
منابع مشابه
The Sarcoplasmic Reticulum of Striated Muscle of a Cyclopoid Copepod
The fine structure of the abdominal musculature of the copepod Macrocyclops albidus was investigated by electron microscopy. Tubules penetrate into the muscle fibers from the sarcolemma, continuity between the wall of the tubules and the sarcolemma being clear. A dense network of tubules envelops the myofibrils, its interstices being occupied by cisternal elements. At the Z lines the tubules tr...
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Calcium (Ca(2+)) signaling plays a key role in a wide range of physiological functions including control of cardiac and skeletal muscle performance. To assure a precise coordination of both temporally and spatially transduction of intracellular Ca(2+) oscillations to downstream signaling networks and target operations, Ca(2+) cycling regulation in muscle tissue is conducted by a plethora of div...
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7-Chloro-5-(2-chlorophenyl)-1,5-dihydro-4,1-benzothiazepin-2(3H)-one [CGP-37157 (CGP)], a benzothiazepine derivative of clonazepam, is commonly used as a blocker of the mitochondrial Na+/Ca²+ exchanger. However, evidence suggests that CGP could also affect other targets, such as L-type Ca²+ channels and plasmalemma Na+/Ca²+ exchanger. Here, we tested the possibility of a direct modulation of ry...
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The ability of the sarcoplasmic (endoplasmic) reticulum (SR, ER) of smooth muscle cells to accumulate Ca was demonstrated by measuring the uptake of 45Ca in fibers which were chemically skinned with saponin, and by electron cytochemistry of the accumulated Ca. The Ca uptake was dependent on ATP and it was stimulated by oxalate, as it is the case in SR of striated muscle. Electron microscopy of ...
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Dr. Edwards and colleagues have demonstrated that many types of vertebrate and invertebrate muscle possess an extensive representation of the endoplasmic reticulum, and have observed that this may be arranged in longitudinal members running parallel to the myofibrils, and in transverse membranes, often located at the level of the junctions of A and I bands. Dr. Porter has called attention to so...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1963
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.17.3.629