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Title Transcription
バイヨウ タイサイボウ ノ ブンレツ ゼンキ ニ オケル カクマク ホウカイ イソウサ ケンビキョウ ニ ヨル カンサツ
Title Alternative (English)
Breakdown of Nuclear Envelope Observed in Cultured Newt Cells with Phase-Contrast Microscopy
File
language
eng
Author
Seto, Takeshi
Description
With a technique of phase-contrast, time-lapse cinematography, the breakdown of nuclear envelope in cultured newt lung cells was analysed from the selected film sequences. Prophase chromosomes showed a centrifugal movement in the nuclear cavriy during about 20 to 30 minutes prior to the nuclear envelope breakdown. The first visible alteration indrcating the breakdown at the end of prophase was a conspicuous dent of the membrane. A small break was seen in this area where the centrioles were supposed to be orrented. Then the envelope disrupted into larger segments after the invaginated portion of the membrane ruptured. The disruption extended over other segments of the envelope gradually, which proceeded for about 6 to 12 minutes from the initiation of breakdown. The result indrcated that the nutral point always oriented perpendicularly to the equatorial plate of the metaphase.
Journal Title
Memoirs of the Faculty of Education, Shimane University. Natural science
Volume
13
Start Page
17
End Page
23
ISSN
05869943
Published Date
1979-12-25
NCID
AN00107941
Publisher
島根大学教育学部
Publisher Aalternative
The Faculty of Education Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Education
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