单词 | embryogenesis |
释义 | embryogenesisn. Biology. The formation and development of an embryo; the embryonic development of a particular organ or structure. In later use also: (Botany) the development of an embryo or embryoid from a somatic or gametic cell of a parent plant; the production of plants by this means. ΚΠ 1830 R. Knox tr. P. A. Béclard Elements Gen. Anat. 333 The laws of..embryogenesis [Fr. l'embryogénésie]. 1876 Pop. Sci. Monthly Nov. 39 When an heir to the throne was expected, the empress was given in charge of a special director, who would regulate all her actions and surroundings..as early as the first evolution from the yolk-substance of the human egg during embryogenesis. 1912 Lancet 28 Dec. 1798/2 The experiments of Professor Bataillon in producing complete embryogenesis by puncturing the virgin eggs of frogs with fine metal stylets have aroused much interest. 1968 Jrnl. Pediatrics 73 614/1 Previous studies..have been primarily histologic and concerned with the embryogenesis of the volar pads and the dermal ridges. 1985 Cambr. Encycl. Life Sci. i. 45/1 The nuclear transplant experiments on Xenopus show that it is the cytoplasm of the egg..that controls the earliest stages of embryogenesis. 2007 M. F. Suárez & P. V. Bozhkov Plant Embryogenesis iii. 31 Somatic embryogenesis, the process in which embryos, similar in morphology to their zygotic counterparts, are induced to develop in culture from somatic cells, is a suitable model system for investigating the regulation of embryo development. This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022). < n.1830 |
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