中胚层的

The rearrangement of the blastula into a three-dimensional organism with inner middle and outer layers occurs during gastrulation.

在原肠胚形成过程中，囊胚重新排列，形成包括内层，中层，外层的三围组织。

Germ potential is established after conception in a totipotent zygote and retained subsequently during development in blastomers of morula , cells form the inner cell mass of blastocyst , epiblast and population of primordial germ cells .

种子潜能的确定是全能的受精卵形成之后，并且随后在桑葚胚，胚泡内层细胞，外胚层和原生殖细胞的发育过程中保留。

For household users to establish simple antifreeze dilution disposal ways of applying gender-controlled embryo freezingly-preserved technique by one-step vitrification dilution method,A,B,and C structure approaches of liquid layers in canaliculi were applied to investigate their survival capacity after embryos freshly-split by one-step dilution;and minimum capacity refrigerant method in specific canaliculus and above structure approach of liquid layer B were also applied to compare their survival capacity of frozen and melted embryos freshly split,and frozen and melted IVF embryos splited by one-step dilution.

为了创立在用户庭院就能应用的玻璃化保存性别控制胚胎的冷冻剂稀释处理方法，采用细管内3种不同液体层构成法，对新鲜分割胚一步法稀释后的存活能力进行了研究；其次用特定细管最小容量冷却法与上述3种不同液体层构成中效果较好的B法对玻璃化冷冻溶解的新鲜分割胚、体外受精分割胚及冷冻溶解的体外受精分割胚进行一步法稀释后的存活能力予以对比。

These observations, coupled with the fact that GA stimulated germination of dormant Myrica seeds, provide evidence that endogenous ABA decreased dormancy break and that endogenous gibberellins, especially GA4 and/or GA1 are involved in germination.

此外，观察暖温、低温或暖低温层积处理后的种子胚部GAs含量发现，除了胚根已伸长的种子胚中的GA4含量增加外，其他各处理的GA1， GA3， GA7和GA20含量都很低。

Seeds remaining attached in dehisced fruit; seed coat with thick inner layer of dense black sclerenchyma and spongy outer layer bounded externally by a shiny black pellicle; endosperm copious; embryo straight or slightly curved; cotyledons elliptic, flattened; hypocotyl superior.

种子附存于开裂的果中；种皮具厚的内层深黑色厚壁组织和海绵状的外层，其外部边界具发亮的黑色表膜。胚乳丰富；胚直或稍弯曲；子叶椭圆形，扁平；下胚轴上位。

The contents of thiamin, riboflavin, nicotinic acid, total protein and xylose and the weight were determined separately for each part as well as for the whole grain.

合并吸收层和胚两部中核黄素的含量，约相等或稍高于糊粉层中核黄素的含量；合并吸收层，胚和糊粉层三者约占总含量50—60％。

Notch1 is expressed by stem cells resided in the cervical loop epithelium, and Notch signaling pathway play a central role in fate decision of those stem cells. Notch receptors and their ligands are involved in both patterning and cell fate determination during odontogenesis. Moreover, many cell factors, which are closely related with odontogenesis, could regulate expression of Notch receptors or their ligands.

既往研究显示：早在牙齿发育期，Notch1就表达于颈环星网状层的干细胞中，是其保持干细胞性质的重要机制；Notch-Delta信号还与成釉细胞、成牙本质细胞分化有关，被认为是牙齿发育细胞分化多样性的原因之一；另外，目前已明确与牙胚细胞分化有关的生长因子如TGFβ、FGF、BMPs等均可诱导Notch受、配体的表达。

O?C?Cu isotopes. revealing that the mixed hydrothermal fluid of magmatic water and meteoric water reactivated the ore elements in the carbonate rocks and quartz diorite. Copper was transported, as Clcomplexes in the ore fluid and precipitated to enrich and thicken the primary sedimentary protore.

认为该矿床是在岩浆水和后期少量大气水的加入而形成的混合热液共同作用下，活化碳酸盐岩地层和石英闪长岩中的铜等成矿元素，形成含矿热液，并以铜的氯络合物方式运移，在弱还原性条件下使原始沉积矿胚层加厚变富。

The galactosyl oligosaccharides of raffinose series are widely distributed in seeds of many species and are localized in tissues that remain viable after desiccation, including the embryo and aleurone layer of cereals, cotyledons and axis tissues of legumes and other dicots.

棉子糖半乳糖苷系列寡糖广泛分布在许多种植物种子中，并存在于干燥后仍能保持活力的组织内，如禾谷类种子的胚及糊粉层，豆类及其他双子叶植物的子叶和胚轴组织等。棉子糖半乳糖苷系列寡糖在禾谷类种子的非自溶性中央胚乳中不合成，但存在于蓖麻种子的自溶性胚乳细胞中。

Results The expression of endogenous LN was found in the basement membrane of epithelium, glands and blood vessels in uterine endometrium of both estrus and early pregnancy. And its was faint that LN present in basement membrane as the implantation occurs, but the LN immunostaining in the epithelial cells of endometrium was stronger. The exogenous LN has no obvious influence on blastocyst attachment and implantation. LN-antibody intra-uterine injection showed significant repressing effect on mouse blastocyst implantation.

结果 动情期及妊娠早期小鼠子宫内膜内源性LN在上皮和腺基膜及血管内皮基膜均有表达，并随着植入的发生基膜的LN表达减弱，而内膜上皮中LN免疫染色逐渐增强；外源性LN对小鼠胚泡粘附与植入子宫内膜不产生明显影响，层粘连蛋白抗体明显抑制小鼠胚泡着床。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。