Abstract:
:Intact follicles as well as defolliculated oocytes of the mouse were studied by freeze-fracture electron microscopy. In intact follicles the oocyte plasma membrane shows two prominent types of intra-membrane particle array:gap junctions and yet undescribed rhombic particle arrays. The gap junctions vary in size (from 5 to 500 IMPs) and shape. Occasionally they are organized in so-called formation plaques. The rhombic particle arrays consist of 25 IMPs on an average, the IMP diameter is 10.5 nm, the mean IMP distance is 19.8 nm and the acute angle in the array is 81.3 degrees. After defolliculation the gap junctions disassemble and change transiently into linear IMP arrays. The rhombic particle arrays persist indicating that they are of a non-junctional nature. The possible function of the rhombic particle arrays is discussed in relation to similar membrane specializations in excitable cells.
journal_name
Eur J Cell Bioljournal_title
European journal of cell biologyauthors
van den Hoef MH,Bluemink JG,de Laat SWsubject
Has Abstractpub_date
1984-11-01 00:00:00pages
312-6issue
2eissn
0171-9335issn
1618-1298journal_volume
35pub_type
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journal_title:European journal of cell biology
pub_type: 杂志文章
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
pub_type: 杂志文章
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更新日期:1991-06-01 00:00:00
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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更新日期:1992-02-01 00:00:00
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journal_title:European journal of cell biology
pub_type: 杂志文章
doi:
更新日期:1982-06-01 00:00:00
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journal_title:European journal of cell biology
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doi:10.1078/0171-9335-00318
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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doi:10.1078/0171-9335-00077
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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journal_title:European journal of cell biology
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