Abstract
FREY-WYSSLING1, following Hürthle, explains the isotropy of the J striation in muscle as the crossing of micellar structure. C. E. Hall, M. A. Jakus and F. O. Schmitt2 established by electron micrographs that myofibrils are composed of parallel bundles of filaments lying axial with the fibrils both in the Q and J striations. On the basis of their experiments these authors put forward two hypotheses to explain the isotropy : it is caused either by differences in orientation within the filaments in the J striation, or by a component which compensates the positive birefringence of the filaments.
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References
Frey-Wyssling, A., "Submikroskopische Morph.", 263 (Berlin, 1938).
Hall, C. E., Jakus, M. A., and Schmitt, F. O., Biol. Bull., 90, 32 (1946).
Szent-Györgyi, A., "Studies on Muscle" (Szeged, 1944).
Straub, F. B., Stud. Instit. Med. Chem., Univ. Szeged, 2, 3 (1942).
Banga, I., and Szent-Györgyi, A., Enzymol., 9, 111 (1940).
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MATOLTSY, A., GERENDÁS, M. Isotropy in the J Striation of Striated Muscle. Nature 159, 502–503 (1947). https://doi.org/10.1038/159502c0
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DOI: https://doi.org/10.1038/159502c0
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