The Embryo Sac of Casuarina Stricta
The Embryo Sac of Casuarina Stricta
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Casuarina Stricta 的胚囊
DOI：
10.1086/328383
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发表时间：
1903
影响因子：
--
通讯作者：
T. C. Frye
中科院分区：
文献类型：
--
作者：
T. C. Frye
在对阿斯克勒庇亚斯(2)的胚囊的检查中，作者对卵子在受精和第一次分裂之间的漫长休眠期留下了深刻的印象。区分受精卵和未受精卵的困难表明，在某些情况下，据报道受精发生在胚乳核分裂之后，这是一个错误，未受精卵被误认为是受精卵。如果在胚乳分裂后受精，第二个雄性细胞核的命运也是一个同样有趣的问题。这表明了对木麻黄囊的重新研究，这里给出了结果。Treub(5)关于木麻黄的令人钦佩的论文发表于1989年。张伯伦(I)在它出版五年后的1986年对它进行了回顾，提出了以下暗示性的声明：
IN the examination of the embryo sac of Asclepias (2) the writer was impressed with the long resting period of the egg between its fertilization and its first division. The difficulty of distinguishing a fertilized from an unfertilized egg suggested that in some cases in which fertilization was reported to take place after the division of the endosperm nucleus, an error had crept in, an unfertilized egg being mistaken for a fertilized one. If there is fertilization after endosperm division, the fate of the second male nucleus is an equally interesting question. This suggested a reinvestigation of the sac of Casuarina, the results of which are here presented. The admirable paper of Treub (5) on Casuarina appeared in i89i. In a review of it by Chamberlain (I) in i896, five years after it was published, the following suggestive statement is made: