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Ultrastructural cytochemistry of the nucleus and nucleolus in growing rabbit oocytes
Author(s) -
Šutovsky Peter,
Jelínková Ladislava,
Antalíková Libuše,
Motlík Jan
Publication year - 1993
Publication title -
biology of the cell
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.543
H-Index - 85
eISSN - 1768-322X
pISSN - 0248-4900
DOI - 10.1016/s0248-4900(05)80185-6
Subject(s) - nucleolus , biology , ultrastructure , prophase , cytochemistry , germinal vesicle , staining , microbiology and biotechnology , nucleus , chromatin , cell nucleus , premature chromosome condensation , electron microscope , nucleolus organizer region , nuclear membrane , rabbit (cipher) , oocyte , meiosis , anatomy , biochemistry , genetics , dna , embryo , physics , gene , optics , statistics , mathematics
Summary— Ultrastructural changes of the germinal vesicle during the growth of rabbit oocytes were studied by means of light and electron microscopy, 3 H‐uridine autoradiography, Ag‐NOR staining and E‐PTA staining. Particular interest was paid to the nucleologenesis and condensation of chromatin. In contrast to other mammalian species, chromosome condensation in rabbit oocytes occurred concomitantly with rRNA synthesis‐dependent nucleolar compaction and preceded nuclear envelope breakdown and resumption of meiosis.