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- NAKAMURA Osamu
- Department of Biology, Osaka Kyoiku University
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- TAKASAKI Hiroko
- Department of Biology, Osaka Kyoiku University
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- MIZOHATA Tomihiro
- Department of Biology, Osaka Kyoiku University
書誌事項
- タイトル別名
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- Acquisition of Self-differentiation Capacity of the Dorsal Marginal Zone
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説明
1) The dorsal marginal zone of Xenopus laevis embryos at st. 6, 61/2, 7, 8 and 9 was dissected out and cultured in vitro.<br>2) At st. 6, only one explant, presumably taken from an unusually premature embryo, developed into axial organs, some other specimens forming sucker.<br>3) The capacity for self-differentiation of the zone into mesodermal axial organs becomes conspicuous at st. 61/2. Embryos with this capacity increases at st. 7 and come to the full at st. 8.<br>4) It is concluded that, as in Triturus, the capacity for self-differentiation of the dorsal marginal zone is not preexistent in Xenopus embryos but is aquired during cleavage; i.e. at st. 61/2 to st. 8, a little earlier than in Triturus.<br>5) The first appearance of this capacity precedes the rapid synthesis of “heterogeneous” RNA recently reported, while the rapid increase in the percentage of embryos with this capacity during st. 7 and st. 8 is parallel with the latter.
収録刊行物
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- Proceedings of the Japan Academy
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Proceedings of the Japan Academy 46 (7), 694-699, 1970
日本学士院
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詳細情報 詳細情報について
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- CRID
- 1390282680087324928
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- NII論文ID
- 130003554450
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- ISSN
- 00214280
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可