胚珠的

Chalazogamy A method of fertilization in angiosperms in which the pollen tube enters the ovule by the chalaza instead of through the micropyle, penetrating the placenta en route.

合点受精：被子植物的一种受精方式，花粉管是通过合点部分而不是通过珠孔进入胚珠的。

In seed plants also produce spores, and spores are profiled in the ovule Pearl hearts a megaspore mother cell produces large spores by meiosis in the anthers of the microspore mother cells produced by meiosis of microspore.

在种子植物中也产生孢子，且均为孢子异型，在胚珠的珠心中的1个大孢子母细胞经减数分裂产生大孢子，在花药中的小孢子母细胞经减数分裂产生小孢子。

Our investigations indicate that the structure of the micropyle changes with the different stages of the reproductive process, and becomes asymmetrical during pollination.

我们对黄檗胚珠的珠孔的形态发育研究显示，在不同的生殖时期，珠孔的结构会发生变化，在传粉时期它的结构显示不对称性。

The influences of INA on ovule ultrastructure were also researched. The plasmolysis phenomenon occurred in the nucellar cells, a great deal of bubble structures existed in the cytoplasm, the sterility of plastosome was disarranged or the structure was entirely damaged and turned transparent.

INA细菌对胚珠的超微结构的影响表现为：使珠心细胞发生质壁分离现象，细胞质中存在大量泡状结构，线粒体的嵴紊乱或结构完全被破坏，呈透明状。

Cytological studies show that the incompatibility of interspecific hybridization of Abies is mainly due to the abort of embryos or ovules.

布朗决定取消11月举行全国大选的计划，9。杂种胚阶段胚或胚珠的败育是冷杉种间杂交不成功的主要原因。

Botany having gynoecia, or pistils, the ovule-bearing organ of a seed plant .

有雌蕊，或雌蕊群的，种子植物产生胚珠的器官组织。

having gynoecia, or pistils, the ovule-bearing organ of a seed pl .

有雌蕊，或雌蕊群的，种子植物产生胚珠的器官组织。

A pistil composed of two or more united carpels.

子房雌蕊中含有胚珠的较底的部分，成熟为果实

Placentation The position of the ovulebearing placentae in angiosperm seeds.

胎座式：指在被子植物中着生胚珠的胎座位置。

Any tree having seeds and ovules contained in the ovary.

子房中同时包有种子和胚珠的树种。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。