胚囊

基本解释 (translations)

megaspore  ·  gastrula  ·  gastrulas

词组短语

embryo sac

与胚囊相关的网络例句 [注：此内容来源于网络，仅供参考]

The results showed that 1 there were no significant differences in the rates of cytoplast protrusion and enucleation between oocytes that were incubated in colchicine (0.4 μg/mL) for 0.5 h and oocytes that were incubated in colchicine (0.4 μg/mL) for 1 h, and the rate of cytoplast protusion can be 85.4% while the rate of cytoplast enucleation is 100%. 2 There was no significant difference in oocyte enucleation between oocytes treated with medium containing 0.2 μg/mL colchicine for 0.5 h and oocytes treated with medium containing 0.4 μg/mL colchicine for 0.5 h. 3 A maturation time of 18–23 h did not affect the rates of cytoplast protusion and enucleation by chemically assisted enucleation, whereas the rate of enucleation of oocytes by blind enucleation was found to decrease with a prolonged incubation time. 4 The development rates of reconstructed embryos could not be influenced by these two enucleation methods, increased from oocytes matured for 21–23 h.

结果表明： 1 卵母细胞在0.4 mg/mL的秋水仙素溶液中分别孵育0.5 h和1 h，胞质突起率和去核率没有显著的差异，突起率可高达85.4%，去核率达到100%； 2 0.2 mg/mL或0.4 mg/mL秋水仙素溶液将卵母细胞处理0.5 h，对去核效果没有显著影响； 3 对于体外成熟18~23 h的卵母细胞，随着成熟时间的延长，盲吸法的去核率降低，但没有影响秋水仙素诱导胞质突起的比率和去核率； 4 两种去核方法对重构胚的发育没有产生显著影响，但成熟21~23 h卵母细胞重构胚囊胚的发育率显著高于成熟18~20 h卵母细胞重构胚囊胚的发育率。

The results of three eggapparatus and two egg apparatus cause the fact that the frequency of twin is higherthan that of triple embryos.

三卵卵器结构胚囊"和"二卵卵器结构胚囊"的受精情况造成了APⅣ的2胚频率远高于3胚的。"

Observing the mature embryo sac of the mutant: It was found thatthe embyo sac appeared in typical polygonum type and more than 90% of the embryo sac hadintegral inner structure. They had egg apparatus, two polar nucleus and three antipodal cells , and their position in the embryonic sac was normal .

幼穗分化、成熟胚囊观察发现，90％以上的胚囊具有完整的内部结构，有卵器、两个极核及多个反足细胞，且位置正常，胚囊呈现典型的蓼型结构；同时还观察到雌、雄器官的发育是同步的。

The other cells of the tetrad undergo degeneration. The mature embryo sac consists of an egg apparatus, a central cell, and 3 antipodal cells. The embryo sac is a monosporic Polygonum type. The zygote develops into a mature embryo going through proembryo, globular, heart, and torpedo stages.

胚囊发育类型为单孢子蓼型胚囊； 2胚的发育经过原胚、球形胚、心形胚和鱼雷胚等阶段发育为成熟胚；胚柄在球形胚时期最发达，但胚柄短小，只由3个扁平细胞组成，之后逐渐退化。

Toreniafournieri. has a naked embryo sac that protrudes from the micropyle into the cavity between the funiculus and placenta. As embryo sac is mature, the egg cell, the two synergids and about half the central cell are located outside the micropyle.

蓝猪耳在其发育的四核期，胚囊从珠孔端伸出，当胚囊完全成熟时，助细胞、卵细胞和大部分中央细胞均暴露于胚珠组织之外，是研究被子植物受精和胚囊发育的模式植物。

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。

Megaspore development and abortion of"Pingyi Tiancha"Compar-ing with regular developing megaspore of normal M.baccata,the megasporemother cellof"Pingyi Tiancha"could form mono-nucleus embryo sacby perhaps irregular meiosis,then most of sexual MES depauperatedand degenerated,finally aborted,or only a few further developed.Of asexualembryo sac,one or more large cells at the chalazal end of nucellus developed in-to one to more asexual embryo sac initials.After the competition between sexu-al embryo sacand asexual embryosac,most ovules only had one asexual embryo sac matured.

平邑甜茶大孢子的发育和败育与正常发育的山定子大孢子对比，平邑甜茶大孢子母细胞经减数分裂能形成单核胚囊，之后多数有性胚囊萎缩、退化而败育，只有极少数进一步发育；而无性胚囊则从胚珠合点端1个或多个较大的珠心细脆形成并首先发育为一个或多个无性胚囊原始体；经过有性胚囊和无性胚囊以及无性胚囊和无性胚囊之间的竞争，多数胚珠只有一个无性胚囊成熟。

The infolding of a portion of the outer layer of a blastula in the formation of a gastrula.

由于细胞向内移动囊胚形成胚囊或肠胚的过程。

The embryological studies of strawberry showed that the ovule of strawberry were hemitropous, the ovule had the obvious hypostace structure, the type of its embryo sac was Polygonum, the embryo sac was long and narrow, the type of development of embryo was the Geum type of the Asterad type, the endosperm was Nuclear type and the somatic embryo sacs happened The integral transparency technique combined with the technique of microdissection was used in this experiment The combination was an innovation in the techniques of section.

对草莓胚胎学的研究结果表明：草莓胚珠横生、胚珠具明显的承珠盘结构、胚囊发育为蓼型、胚囊狭长、胚胎发育为紫菀型水杨梅类型、胚乳核型、并有体细胞胚囊的产生。试验中采用了多种制片方法，其中将整体透明技术和显微解剖技术相结合的方法是在制片技术上的一次创新。

The embryo sac developed into functional megaspores only and no mature embryo sac was generated.

胚囊只发育到单核胚囊阶段，没有形成成熟胚囊。

与胚囊相关的网络解释 [注：此内容来源于网络，仅供参考]

blastochyle：胚囊液,胚液

blastoaleuria,blastoaleurios pores 芽粉孢子 | blastochyle 胚囊液,胚液 | blastocoele,blastocele 囊胚腔

blastocyst：(囊)胚泡[见于哺乳动物着床前的胚囊]

blastocoel 囊胚腔 | blastocyst (囊)胚泡[见于哺乳动物着床前的胚囊] | blastoderm 胚层;胚盘

blastocyst cavity：胚囊腔

blastocone | 胚锥 卵裂锥 | blastocyst cavity | 胚囊腔 | blastocyst | 胚泡

blastula：囊胚,囊胚泡

blastozooid 芽生体 | blastula 囊胚,囊胚泡 | blastula stage 囊胚期

embryo sac：胚囊

单孢型胚囊是指胚囊母细胞减数分裂形成四个单倍体的大孢子,4个大孢子沿珠心呈线形或T形排成,其中靠近珠孔端的三个细胞相继程序化死亡,仅远离珠孔端的一个具功能的大孢子继续发育,形成单细胞胚囊(embryo sac),再由单细胞胚囊发育

bisporic embryo sac：双孢子胚囊

单孢子胚囊 monosporic embryo sac | 双孢子胚囊 bisporic embryo sac | 四孢子胚囊 tetrasporic embryo sac

embryo sac tube：胚囊管

四孢子胚囊 tetrasporic embryo sac | 胚囊管 embryo sac tube | 卵核 egg nucleus

tetrasporic embryo sac：四孢子胚囊

双孢子胚囊 bisporic embryo sac | 四孢子胚囊 tetrasporic embryo sac | 胚囊管 embryo sac tube

blastophore：胚囊

blastoneuropore 胚神经孔 | blastophore 胚囊 | blastophthoria 胚肿变性,胚细胞变性,胚退化

blastosphere：囊胚,囊胚泡

blastopsephitic | 变余砾状 | blastosphere | 囊胚囊胚泡 | blastous | 胚的芽的