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・ Pluralist Left
・ Pluralist school
・ Pluralist theories of truth
・ Pluralistic ignorance
・ Pluralistic walkthrough
・ Plurality
・ Plurality (company)
・ Plurality (voting)
・ Plurality criterion
・ Plurality of worlds
・ Plurality opinion
・ Plurality voting system
・ Plurality-at-large voting
・ Pluralsight
・ Pluramycin A
Pluriblast
・ Pluribus
・ Pluricentric language
・ Pluricontinentalism
・ Pluriculturalism
・ Plurien
・ Pluriharmonic function
・ Plurilateral agreement
・ Plurilingualism
・ Plurima Mortis Imago
・ Plurimeter
・ Plurinational Constitutional Tribunal
・ Plurinational Electoral Organ
・ Plurinational Legislative Assembly
・ Plurinational Unity of the Lefts


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Pluriblast : ウィキペディア英語版
Pluriblast
The pluriblast is a pluripotent population of cells in the embryogenesis of marsupials, called the inner cell mass in eutherians.〔Sheng, G., Epiblast morphogenesis before gastrulation. Dev. Biol. (2014), http://dx.doi.org/10.1016/j. ydbio.2014.10.003i〕 The pluriblast is distinct from the trophoblast, and gives rise to the germ layers of the embryo, as well as extra embryonic endoderm and extra embryonic mesoderm. Both the pluriblast and trophoblast arise from the totipotent cells of the early conceptus. By definition, the pluriblast does not give rise to trophoblast cells during normal development, although it may retain this potential under experimental conditions.
In metatherians (marsupial)s the pluriblast forms part of the blastocyst wall and no structure exists that can be described as an inner cell mass. "Inner cell mass" is thus a morphological term peculiar to eutherian mammals, whereas "pluriblast" is a functional term more widely applicable to conserved aspects of mammalian development.
==References==

* Johnson MH and Selwood L (1996). Nomenclature of early development in mammals. Reproduction, Fertility and Development. 8:759-764.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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