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The Sarcoplasmic Reticulum in Muscle Cells of Amblystoma Larvae

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Electron microscopy reveals sarcoplasmic reticulum patterns in Amblystoma larvae muscle cells, suggesting functional roles.

To investigate the structure of the sarcoplasmic reticulum in muscle cells of Amblystoma larvae and determine its relation to myofibrils.
Utilized electron microscopy to examine thin sections of muscle fibers in Amblystoma larvae.
Analyzed the organization of the sarcoplasmic reticulum in relation to myofibril architecture.
Identified a complex, membrane-limited system of canaliculi and vesicles forming a reticulum around myofibrils.
Observed a constant pattern between the reticulum and adjacent myofibril bands in each sarcomere.
Noted interruptions in longitudinal continuity of the reticulum at Z bands where vesicles are positioned.

Keith R. Porter (1956) studied this question.

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