Maturation of Rana temporaria and Acipenser stellatus oocytes induced by the cytoplasm of embryos at different cell cycle phases and at different stages of cleavage and blastulation.
Identifieur interne : 000779 ( Ncbi/Merge ); précédent : 000778; suivant : 000780Maturation of Rana temporaria and Acipenser stellatus oocytes induced by the cytoplasm of embryos at different cell cycle phases and at different stages of cleavage and blastulation.
Auteurs : T A Dettlaff ; L V RyabovaSource :
- Cell differentiation [ 0045-6039 ] ; 1986.
English descriptors
- KwdEn :
- MESH :
- cytology : Blastocyst, Embryo, Nonmammalian.
- growth & development : Oocytes.
- physiology : Blastocyst, Embryo, Nonmammalian.
- Animals, Cell Cycle, Cell Differentiation, Cell Division, Female, Fishes, Mitotic Index, Rana temporaria, Xenopus laevis.
Abstract
Experiments involving injections of cytoplasm from the cleaving embryos of Rana temporaria and Acipenser stellatus into fully grown oocytes of the same species and of Xenopus laevis, show that at all mitotic phases, and throughout the period of synchronous cleavage divisions, the cytoplasm is characterized by high activity of the germinal vesicle breakdown factor. This activity decreases during nuclear division desynchronization and drops sharply after the mitotic index fall upon blastulation. Aside from germinal vesicle breakdown in the oocytes, the A. stellatus embryos' cytoplasm also induces development of a cortical reaction capacity.
PubMed: 3484433
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pubmed:3484433Le document en format XML
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<series><title level="j">Cell differentiation</title>
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<imprint><date when="1986" type="published">1986</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term>
<term>Blastocyst (cytology)</term>
<term>Blastocyst (physiology)</term>
<term>Cell Cycle</term>
<term>Cell Differentiation</term>
<term>Cell Division</term>
<term>Embryo, Nonmammalian (cytology)</term>
<term>Embryo, Nonmammalian (physiology)</term>
<term>Female</term>
<term>Fishes</term>
<term>Mitotic Index</term>
<term>Oocytes (growth & development)</term>
<term>Rana temporaria</term>
<term>Xenopus laevis</term>
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<keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Blastocyst</term>
<term>Embryo, Nonmammalian</term>
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<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Oocytes</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Blastocyst</term>
<term>Embryo, Nonmammalian</term>
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<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Cell Cycle</term>
<term>Cell Differentiation</term>
<term>Cell Division</term>
<term>Female</term>
<term>Fishes</term>
<term>Mitotic Index</term>
<term>Rana temporaria</term>
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<front><div type="abstract" xml:lang="en">Experiments involving injections of cytoplasm from the cleaving embryos of Rana temporaria and Acipenser stellatus into fully grown oocytes of the same species and of Xenopus laevis, show that at all mitotic phases, and throughout the period of synchronous cleavage divisions, the cytoplasm is characterized by high activity of the germinal vesicle breakdown factor. This activity decreases during nuclear division desynchronization and drops sharply after the mitotic index fall upon blastulation. Aside from germinal vesicle breakdown in the oocytes, the A. stellatus embryos' cytoplasm also induces development of a cortical reaction capacity.</div>
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<DateCreated><Year>1986</Year>
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<DateRevised><Year>2003</Year>
<Month>11</Month>
<Day>14</Day>
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<JournalIssue CitedMedium="Print"><Volume>18</Volume>
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<Title>Cell differentiation</Title>
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<ArticleTitle>Maturation of Rana temporaria and Acipenser stellatus oocytes induced by the cytoplasm of embryos at different cell cycle phases and at different stages of cleavage and blastulation.</ArticleTitle>
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<Abstract><AbstractText>Experiments involving injections of cytoplasm from the cleaving embryos of Rana temporaria and Acipenser stellatus into fully grown oocytes of the same species and of Xenopus laevis, show that at all mitotic phases, and throughout the period of synchronous cleavage divisions, the cytoplasm is characterized by high activity of the germinal vesicle breakdown factor. This activity decreases during nuclear division desynchronization and drops sharply after the mitotic index fall upon blastulation. Aside from germinal vesicle breakdown in the oocytes, the A. stellatus embryos' cytoplasm also induces development of a cortical reaction capacity.</AbstractText>
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<MeshHeading><DescriptorName UI="D005399" MajorTopicYN="N">Fishes</DescriptorName>
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<MeshHeading><DescriptorName UI="D008940" MajorTopicYN="N">Mitotic Index</DescriptorName>
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<MeshHeading><DescriptorName UI="D009865" MajorTopicYN="N">Oocytes</DescriptorName>
<QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName>
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<MeshHeading><DescriptorName UI="D011896" MajorTopicYN="N">Rana temporaria</DescriptorName>
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<MeshHeading><DescriptorName UI="D014982" MajorTopicYN="N">Xenopus laevis</DescriptorName>
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