…Until the possibility of the formation of a germ region is determined, its developmental fate is merely “predetermined.” Therefore, predestination can be understood as almost synonymous with “prospective significance,” which is used today to mean the only possibility that a certain germ region should be able to form through normal development. In the past, the predestined fate of each germ region in amphibian and avian embryos was investigated using local vital staining and carbon particle labeling, but today, highly accurate enzyme labeling methods are being used to analyze the developmental fate of various animal embryos in detail at the cellular level. *Some explanations of terms that mention "prospective significance" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…胚域の形成可能性が決定されるまでは,その発生運命はあくまで〈予定〉なのである。したがって予定運命は,今日ではある胚域が正常発生で実現すべき唯一の形成可能性という意味で用いられる〈予定意義prospective significance〉とほとんど同義と理解してよい。 両生類や鳥類の胚について各胚域の予定運命が,古くは局所生体染色法や炭素粒子を使う標識法で調べられたが,今日では精度の高い酵素標識法によって,各種動物胚の発生運命が細胞レベルで詳細に解析されている。… ※「prospective significance」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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