胚珠的

The microspore was more like a tetrahedron, whilethe polar was more like a triangle. The number of microspore in every anther wasbetween 2600～3600, so the amount of pollen was quite large that it was propitiousto spread and pollination. P/O was 8088 and the breed system was singleheterosexual copulatoryb. The viability of pollen was normally above 50%. The testof pollen culture showed that the viability of pollen was up to the tiptop under thehigher temperature and lower humidity (38℃,40%),while it was weakest under thelower temperature and lower humidity (16℃,40%).The OCI is 4, and the breedsystem was belong to autocopulation. If it was heterosexual copulatory, there must beintermediums for pollination. It was recorded there were more than 40 species ofinsects on the anthotaxy or followers of Malania Oleifera. Under different weather,different living environments and different plants the frequency and rush hour of theinsects to visit the followers were different. Actions of different kinds of insect werealso different. According to the results of the observation, the form of fluid and seedof Malania Oleifera mostly rely on the action of insect pollination, especially thebees.

蒜头果的花序为聚伞形花序，有小花8～10朵，小花较小；按花粉大小等级划分，蒜头果的花粉粒属于小的范围；花粉粒呈近四面体，极面为近三角形：每粒花药所含的花粉粒在2600～3600粒之间，花粉量较大，有利于花粉的传播和授粉；胚珠比值为8088，繁育系统为专性异交类型；花粉生活力一般在50％以上；在不同温度湿度条件下测得蒜头果花粉的生活力在高温低湿(38℃，40％)的条件下最高，在低温低湿(16℃，40％)的条件下最低；杂交指数值为4，繁育系统自交亲和，异交，需要传粉者；记录到的访花昆虫有40余种，访花昆虫的访花频率及高峰时间不同，不同种类的昆虫的访花行为也是各有所异；从观察的结果看，蒜头果的种实的形成大多数依赖于传粉昆虫的活动，其中主要是蜂类。

There are commonly eight nuclei in the embryo sac: the egg apparatus at the micropylar end, made up of an gee nucleus and two synergid nuclei; three antipodal cells at the oppsite chalazal end that probably aid embryo nourishment; and two polar nuclei in the center that fuse to form the primary endosperm nucleus.

通常胚囊中有8个核，卵器在珠孔端，由卵和两个助细胞组成；3个反足细胞在合点端，可能为胚胎提供营养；胚囊中央有2个极核，融合在一起形成最初的胚乳核。

Nucellar cells degenerated in advance under low temperature, which resulted in thickened embryo sac wall surrounding the megasporocyte.

低温处理的蝴蝶兰，胚囊发育过程中珠心细胞提前退化，在大孢子母细胞外围形成较厚的胚囊壁。

The double embryo sac is a new type of variation in rice,chartered with a large embryo sac inlaid with a small embryo sac,overlapping in theirmicropyle part,and with the eggs far from micropyle part.

双套结构胚囊是一种新发现的胚囊，主要特点是含有大小两个相嵌的胚囊和远离珠孔端的卵细胞。

Deserticola showed polarity, with the micropyle cells being smaller than the chalazal ends and differentiated into white radicle-like organs.

肉苁蓉种胚具有明显的极性，珠孔端细胞小于合点端，珠孔端细胞分化、生长并产生白色的类胚根状结构。

Lthough a low frequency of abnormal growthof nucellus was observed,no embryo originating from nucellus cell and integumentwas found.

PⅣ珠心组织出现低频率的异常生长现象，但未观察到由珠心细胞发育形成的不定胚。

Perisperm The nutritive tissue in the seeds of many Caryophyllaceae.It is a diploid tissue derived from the nucellus rather than the embryosac.

外胚乳：存在于多数石竹科植物的种子中的营养组织，二倍性，来源于珠心而不是胚囊。

In thistreatment,some embrocyte,which may originate from the nucellus cell,can be foundin few of ovaries in APⅣ.The embryos in most of ovaries in APⅣ and IR36develop normally,but the endosperm,in which many crystal-like substances wereobserved,by spike-spray with 2,4-D 3-hours after pollination.

少数APⅣ子房的"腔"内出现多个"胚状体"，推测可能来自珠心细胞的分裂；在受精后处理的大部分子房胚胎发育正常，但胚乳发育却不正常，胚乳内观察到许多的结晶体。

DC have been studied by using the cytochemical methods. The results showed that the cytoplasm of the haustorial cells, the degenerating sites of integumentary cells and nucellar cells surrounding haustorial cells showed strong PAS staining.

DC的胚乳吸器进行了细胞化学研究，结果显示，胚乳吸器的细胞质、胚乳吸器周围解体的珠心细胞和珠被细胞均呈强PAS正反应。

Disk absent. Ovary ovoid, cylindrical, or bottle-shaped, glabrous or hairy, many loculed; ovules numerous per locule; styles as many as carpels (15-30), usually reflexed, persistent, radiating, in functionally female flower elongating after anthesis; rudimentary ovary in functionally male flower very small, with minute styles.

花盘无。子房卵球形，圆筒状的，或瓶形的，无毛或有毛的，很多室的；胚珠多数每室；花柱同数于心皮(15-30)，通常反折，宿存，辐射状，功能上的雌花花后延长；功能上的雄花不发育子房很小，具小的花柱。

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。