受精作用

Fertilization played an important role in early calcium uptake by fruit. There was no fertilization in parthenocarpy fruit, and calcium concentration was very high during full inflorescence period.

授精作用对果实早期钙营养的吸收具有重要作用，单性结实的果实无受精过程，在花前钙浓度已居很高水平。

Self-incompatibility (self-sterility) The condition in whereby male gametes cannot fertilize female gametes from the same individual and give rise to a viable embryo.

自交不亲和性：是雄配子体不能与来自同一植物体的雌配子体发生受精作用并产生可育受精卵的情况。

Ancient palmlike plants closely related to ferns in that fertilization is by means of spermatozoids.

古老的一科与蕨类植物有密切亲缘关系其受精作用是借游泳精子进行的。

The fertilization and embryo development in crosses of Triticum carthlicum×Pennisetum americanum and Triticum aestivum L.cv.

对波斯小麦、&中国春&小麦与珍珠粟远缘杂交的受精作用和胚胎发育进行了研究。

The former is first to obtain protoplasts of female germination unit in different development stages, then Ca2+ lonophore treatment; the latter is to express transgenically the Ca2+-sensing cameleon protein in Torenia fournieri, which allows long term measuring stimulus-induced cytoplasmic Ca2+ changes.

工作之一首先是检测受精过程中雌性生殖单位中发生的显著的细胞学变化，以此作为受精与否的标志；然后经过外源导入钙(A23187诱导)研究[Ca~(2+)]_在受精过程中的这一细胞学事件发生中所起的作用。

The fertilization was processed by sperm in mature male gametophyte combining with egg cell on the top of archegonia on June 15 or so.

摘要樟子松发育成熟的雄配子体中的精子6月15日左右在颈卵器中上部与卵细胞结合，进行受精作用，其后，受精卵进行游离核分裂，形成8个子核时，开始形成细胞壁。

Because fertilin β has strong potencies in fertilization and specifically localized in testis, it has become one of the most important targets in male contraception.

由于受精蛋白β在受精过程中发挥重要作用，并且特异性位于睾丸，因而成为男性免疫避孕研究的重要靶抗原之一。

Most female gametes have two synergids that play a key role during fertilization in more than 80% angiosperms.

助细胞是被子植物雌配子体的组成细胞之一，是大多数被子植物完成受精作用的关键环节之一。

The tetrad of megaspores was linear shaped, with one of them being functional.

锥栗胚胎为蓼型，功能大孢子发育成熟时共具有七个细胞八个细胞核，通过双受精作用，产生胚和胚乳，胚胎发育经历球形胚、心形胚、鱼雷形胚到子叶胚的过程。

In the present study, we collected cumulus cells oocyte complex from ovaries of two different strain mice. The cumulusenclosed oocytes were cultured for 6 h in MEM supplemented with growth factor and FSH. The meiotic maturation of these oocytes has progressed to pro-metaphse Ⅰ stage and the condensed chromosomes are visible under DIC microscope, metaphase Ⅰ spindle even can be detected under Polscope. The metaphase Ⅰ spindles of oocytes were exchanged under such microscopes. After electric stimuli, 91. 6% and 91. 6% karyoplasts-cytoplasm pairs were fused respectively. The resulting oocytes were cultured further in MEM and over 80% of oocytes released the first polar body. 79% and 77% of oocytes formed two pronuclei after in vitro fertilization and the embryos were cultured in KSOM supplemented with amino acids. Over 60% of embryos developed to blastocyst stage.

在本研究中我们在取得两种不同品系小鼠的卵丘卵母细胞复合体后，先将卵丘卵母细胞复合体置于含有多种生长因子和激素的MEM培养液中培养6小时，此时卵母细胞已进入第一次减数分裂的前中期，并且在DIC倒置显微镜下可以看到浓缩的染色体，用Polscope可以发现明显的纺锤体，借助这种显微镜通过显微操作将两种不同品系小鼠来源的卵母细胞的MI纺锤体进行互换，经过三次直流电脉冲作用后，分别有91.6％的胞质—MI核质体对融合，经过进一步的培养后，超过80％的重组卵母细胞排出第一极体，体外受精后分别有79％和77％的重组卵形成双原核，受精后的胚胎在KSOM胚胎培养液中体外培养4天后，超过60％的胚胎发育至囊胚。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。