胚胎发育

Abscisic acid is one kind of phytohormone with overall physiologic function. It plays an important rule on plants somatic embryogenesis and development.

脱落酸是一种具有全面生理功能的植物激素，在植物体细胞胚胎发生发育过程中具有重要的作用。

IGFs play a key role during the chicken embryo, development, differentiation and growth afterbirth.

胰岛素样生长因子在鸡的胚胎及胚后发育、分化和生长过程中起着关键性作用。

I report here that maternal gene xNorrin, a homologue of Norrie Disease gene, is expressed in animal pole and enriched in dorsal blastomeres of early embryos.

爪蟾背部动物极的一部分细胞将发育成神经外胚层，而母源xNorrin mRNA正是富集在卵母细胞和早期胚胎的动物极半球。

Then we compared cleavage rate and blastocyst rate among different groups. After that we evaluated the quality of blastocysts by using ICM/TE (Inner cell mass/Trophectoderm cells) ratio via staining with propidium iodide and Hoechest333258, and analyzed the level of genome methylation and histone acetylation by immunofluorescence.

比较各组受精卵的卵裂率和囊胚发育率；并应用碘化丙啶和Hoechest333258对囊胚进行染色，利用ICM/TE值评价各组胚胎体外发育的质量；同时将囊胚进行免疫荧光染色，观察其基因组甲基化和组蛋白乙酰化的水平。

As transcriptional regulators, LIM homeobox genes have been implicated in the control of embryonic development and differentiation.

同源盒基因的表达产物是一类重要的转录因子，主要参与调控体内一些发育相关基因的表达，在胚胎的发育调控中发挥重要作用。

The suspensors of some suf3 seeds are short and abnormal curvature in 8-cells period.

而在稍后的发育时期中，我们在suf3中观察到了退化的胚胎，很可能是由胚柄发育异常所造成的。

Furthermore, myogenesis was not affected in the FoxD5 morphants, owing to the results of myf5 downergulation in somites and myod upregulation due to the knockdown of myf5, and therefore resulted in myogenin normal expression. In addition, FoxD5 was upregulated in the FoxD3-knockdown embryos, suggesting that FoxD5 might compensate the functions of FoxD3 in the PSM.

进一步观察体节后期分化之肌肉发育，发现在FoxD5 morphants中虽然myf5在体节的表现下降却由表现上升的myod所补偿，因而使得myogenin的表现没有发生变化，显示FoxD5 morphants之肌肉发育没有受到影响；而观察抑制FoxD3的胚胎中，FoxD5在新生成体节中会有表现异位的表现，显示FoxD3在PSM之功能可能由FoxD5来补充。

To address this issue, we microinjected Morpholino Oligonucleotides, which acts as a specific translational inhibitor, into 1-cell stage zebrafish embyos to knockdown the expression of FoxD5. Results showed that the newly forming somites of the FoxD5-MO-injected embryos were malformed both in the stage when the somitogenesis was completed (24-hpf) and in the stage when the somitogenesis was in progress (14-hpf).

在本篇研究中，为了了解FoxD5在体节生成时的功能，利用专一抑制基因转译之Morpholino Oligonucletides对1-cell时期之斑马鱼胚胎进行显微注射以抑制FoxD5的转译，并在体节发育已完成之24 hpf时、及体节仍在形成之14 hpf (约12-somite stage)时分别观察FoxD5-MO注射个体(FoxD5 morphants)，发现新生成之体节处有产生体节发育畸形的现象。

ScienceDaily (May 8, 2009)— Iron plays a large role in brain development in the womb, and new University of Rochester Medical Center research shows an iron deficiency may delay the development of auditory nervous system in preemies.

科学日报（2009年5月8日）报道：铁是胚胎时期脑发育的重要因素，罗切斯特医学中心最新研究显示铁缺乏可能使早产儿的听觉神经系统发育迟滞。

During embryogenesis,the axial skeleton is formed by a process called somitogenesis, which produces transient segmental tissue known as somites.Disruptions in somitogenesis have been shown to result in vertebral malformations,including segmentation failure and formation failure.

在脊柱发育的胚胎期，形成一种重要的过渡性组织-体节，体节决定中轴骨的形成，已经证明体节发育受影响可导致脊椎畸形，包括脊椎形成障碍和脊椎分节不良。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。