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(1907)
Plasma and Zelle
(1979)
n The Cell Nucleus
(1969)
Nature (Lond)
(1964)
Protoplasrnatologia
196 1
Vladislav Růžička
Plasma und ZelleNature, 81
Biochirn
(1978)
Biochern
1882 . Zellsubstanz, Kem and Zelltheilung
(1978)
n The CeU Nucleus
(1964)
Protoplasmatologia
(1876)
Beitrage zu einer einheithchen Auffassung der verschie - denen Kernformen
H. Busch (1966)
The Cell NucleusNature, 211
(1876)
Beiträge zu einer einheitlichen Auffassung der verschie - denen Kernformen
188 1 . Jenaische Zeitschrift für Naturwissenschaften
(1881)
Jenaische Zeitschriftfur Naturwissenschaften
then demonstrated with special clarity in the nuclear microdissection experiments of Kite (6) . Further support for the existence of a true nuclear membrane structure, which was profoundly different in composition and molecular organization from the nuclear and cytoplasmic zones, was obtained by polarization microscopy . In these studies the nuclear membrane showed negative spherite birefringence, indicative of lamellar arrays parallel to the nuclear surface (7, 8). Disappearance and finally reversion of the character of this birefringence in imbibition series reported by Schmitt (9) then was interpreted to show that the lamellar structures responsible for the negative spherite appearance was a result of form birefringence and that the intrinsic birefringence of the nuclear membrane resulted from layers of molecules, probably lipids, oriented perpendicularly to the plane of the nuclear membrane . However, the demonstration of the significance and the unique mode of organization of the nuclear membrane has been made possible only by the development of electron microscopic preparation techniques (10-20 ; for more complete and detailed treatment of literature see reviews in references 21-23) . The nuclear envelope as the structure of the nucleocytoplasmic borderland has always been suggestive of being biologically important and, also because of
The Journal of Cell Biology – Rockefeller University Press
Published: Dec 1, 1981
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