micropyle

1. The region of an ovule that is opposite the micropyle, where the integuments and nucellus are joined.
   合点珠孔对面的胚珠内结合珠被和珠心的一个区域。
2. After finding the whirlpool like structure of micropyle of the mature egg of Misgurnus anguillicaudatus in1987, we discovered again that there is a radiate structure.
   继1987年发现泥鳅成熟卵卵膜孔涡旋状结构后，作者又发现大银鱼卵膜孔区域呈现沟脊放射状结构。
3. In radicle areas, there are palisade cells and a lucuna which located above micropyle and formed via knockdown parenchyma cells.
   胚根区有栅栏状细胞，珠孔区以上有薄壁细胞解体后形成的断裂层。
4. ( of a plant ovule) completely straight with the micropyle at the apex.
   （指植物的胚珠）珠孔完全直向顶点。
5. ( of a plant ovule) curved with the micropyle near the base almost touching its stalk.
   （指植物的胚珠）珠孔弯曲接近底部，几乎接触了干。
6. The developmental morphology of the obturator and micropyle and the pathway of the pollen tubes in the ovarian locule in Phellodendron amurense Rupr. have been investigated by scanning electron microscopy and light microscopy.
   利用扫描电子显微镜术和光学显微镜术研究了黄檗（PhellodendronamurenseRupr.）的珠孔塞和珠孔的形态发育和花粉管在雌蕊中的路径。
7. 8-14 hours after pollination, pollen tube grows in ovary and gets into ovule via micropyle. It is about 1 h from germination to the arrival at micropyle.
   授粉后8~14h，花粉管在子房中生长并通过珠孔进入胚珠。自花粉萌发至花粉管长入珠孔大约需要1h。
8. Developmental Morphology of Obturator and Micropyle and Pathway of Poll Tube Growth in Ovary in Phellodendron amurense ( Rutaceae)
   黄檗（芸香科）的珠孔塞和珠孔的形态发育及花粉管在子房室中的生长路径（英文）
9. 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。
10. Before and after pollination, calcium was more abundant in the exostome and endostome as compared with the other regions of the integuments, and was concentrated at the apoplast system, i.e. the intercellular matrix of the micropyle canal and the cell wall.
    结果显示，授粉前后内、外珠孔处钙沉淀明显较珠被其它部位为多，钙主要分布在细胞壁和胞间基质等质外体系统中。
11. The fertilization and development of egg cells in the large embryo sac might be the main cause of the formation of the so called "mid-seated embryo" ( the embryo far from the micropyle end).
    大胚囊中的卵细胞受精发育可能是形成所谓中位胚（远离珠孔端胚）的主要原因。
12. In 30 seconds, 86% of sperm entered micropylar canal along the grooves around the micropyle;
    在授精开始的30秒内，测得卵膜附近约86%的精子沿着凹沟进入精孔管；
13. The growth rate of pollen tubes varied widely with the position of gynecium. The pollen tubes grew fast in the stigma canal and style canal, but slow in the obturator and micropyle.
    花粉管通过柱头沟和花柱道时生长快，通过珠孔塞和珠孔以及珠柄时生长缓慢。
14. The pollen grain germinates on the stigma and the pollen tube grows along the hollow style canal into the ovary chamber at the funicle side and enters the micropyle.
    在子房室内，沿珠柄侧的子房内壁生长至与胚珠珠孔相当部位时，花粉管离开子房壁进入珠孔，经珠心冠细胞之间隙抵达胚囊。
15. The ovaries grow to stage ⅳ when they are 310 days old, the micropyle and the micropylar cell are very clear.
    310d龄鱼进入第Ⅳ期卵巢，Ⅳ时相卵母细胞的受精孔和精孔细胞明显。
16. After the newborn endosperm nuclei divided, the cells were formed step by step from the chalaza side to the micropyle side.
    次生极核于合点端受精后，逐渐分裂形成细胞。
17. Through anatomizing oviposition room and damaged phloem tissue in Tilia mongolica and observing the changing situation of oviposition room and eggs, phloem ray and outflow from medullary ray not only play role on miniature oviposition room, but also directly point towards surface of egg and micropyle.
    显微解剖椴树产卵室和受害韧皮组织，观察其卵室和卵的变化情况，揭示了韧皮射线与髓射线流出物不仅作用雏形卵室，而且直指卵表面及卵孔。
18. The sperm entry site beneath the micropyle is specialized and derived from the plasma membrane of the egg.
    精子进入区由卵子质膜表面特化而成，可区分为精子依附位点和精子入卵位点。
19. With the megasporocyte developing, a bigger vacuole appears in the micropyle end, then it migrating toward the chalazal end with the nucleus in the micropyle end, ringed ER disappears in this phase.
    大孢子母细胞继续生长，先在珠孔端出现一个较大的液泡，液泡随后移向合点端，细胞核移至珠孔端，此时环状内质网消失；
20. In fish whose sperm structure belongs to the acrosome type, there is no micropyle on the surface of ovum, for example, in Tilapia nilotica.
    与此相对应的卵子结构也不相同：精子为顶体类型的鱼类，卵子没有受精孔；
21. Owing to the degeneration of the nucellus at the micropyle pole during megagametogenesis, the egg apparatus pole of the mature embryo sac directly contacts with the integument and more or less penetrates into the micropyle.
    在胚囊发育过程中珠孔端的珠心组织退化，故成熟胶囊的卵器端直接与珠被和珠孔相接。
22. 17~ 21 hours the pollen tube reached the embryo sac through the micropyle;
    17～21小时，花粉管经珠孔到达胚囊；
23. The micropyle is formed with inner integuments and partial outer integument.
    珠孔由内珠被和腹侧外珠被构成。
24. Building of Mathematical Model of Unusual Structure on Teleost's Micropyle
    真骨鱼卵膜孔奇异结构的数学建模
25. Structure of micropyle in Gossypium hirsutum and the pathway of pollen tube growth
    陆地棉珠孔的结构及花粉管在其中的生长途径
26. By the 30 seconds postinsemination, the sperm enters the egg cytoplasm via micropyle.
    受精30s后，精子通过受精孔进入卵质；
27. The zygote, 2-cell proembryo, T-proembryo, multicellular proembryo, small globular embryo and endosperm nucleus diffusion to micropyle were observed in succession.
    开花14～23d，胚珠中可见合子、2-细胞原胚、T-形原胚、多细胞原胚、小球胚及扩散至珠孔端的胚乳核。

noun

1. minute opening in the wall of an ovule through which the pollen tube enters