胚盘
- blastoderm;blastodisc;germ disc;embryonic disk
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[embryonic disk] 胚泡的内细胞质部分,有胚胎哺乳类的胚胎从那儿发育
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短双链RNA对鸡胚盘细胞外源绿荧光蛋白基因表达的影响
Inhibition of green fluorescent protein gene expression in chicken blastoderm cells by siRNA
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本文详细研究了甜菜夜蛾Spodopteraexigua(H櫣bner)胚胎发育的卵裂、胚盘、胚带的形成和胚层分化。
This paper studies the embryonic development of Spodoptera exigua ( H ü bner ) including the cleavage , the formation of blastoderm and germ band , and the differentiation of germinal layers .
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鸡X期胚盘细胞的冷冻保存及复苏后嵌合体鸡制备的研究
Studies on the Cryopreservation Conservation of Chicken BCs in Stage X and Chicken Chimeras Using Frozen-thawed BCs
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目的基因置于质粒内P因子中可在转座酶的作用下插入前胚盘胚。
Desired gene is placed between P element ends , usually within a plasmid , and injected into preblastoderm embryos in the presence of transposase .
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通过微注射法将鸡原始生殖细胞(PGCs)注入到鸭的胚盘下腔中,用鸡W染色体DNA探针通过原位杂交的方法对供体PGCs在嵌合体胚胎性腺外的发育作了研究。
Chicken PGCs from a line of White Leghorns were microinjected into Maya duck blastoderms at stage ⅹ . Extragonadal development of donor PGCs in chicken duck chimeric embryos were studied by in situ hybridization with W chromosome specific DNA probes .
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将转染后的鸡胚盘细胞移入到受体AA肉鸡的胚下腔,孵化6d后在8个鸡胚中检测到有外源基因的存在,阳性率为40%(8/20)。
The transfected blastodermal cells were injected into the subgerminal cavity of the recipient , after being hatched for 6 days the exogenous gene were detected in 40 % ( 8 / 20 ) of the embryos examined .
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距前一个蛋产出后175h(12~125h子宫龄)至明区形成期,即鸟类的囊胚期晚期,结果在胚盘中央形成透明的明区和周围不透明的暗区。
Later blastocyst stage , from 17 5 h ( 12 ~ 12 5 h uterine age ) to area pellucida formation after the former egg had been laid .
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25min后,雌、雄原核向胚盘中央靠近,然后彼此接触,最后融合为合子核;
By the 25 min postinsemination , the male and female pronuclei move toward the center of blastodisc , then associate with eath other tightly , lastly confuse completely to be the zygotic nucleus .
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在水温18~22℃条件下,胚胎从受精到孵化出膜历时66h,经过了胚盘形成期、卵裂期、囊胚期、原肠胚期、神经胚期、器官分化期6个主要阶段。
The incubation period is 66 hours from 18 to 22 ℃ . The embryonic development process can be divided into 6 stages , including fertilized egg , cell cleavage , blastula , gastrula , neural stage and organ formation , and there are thirty-one developmental phases observed noticeably .
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水温高于28℃时,胚胎发育至多细胞期,胚盘聚合死亡。
The embryos died at the stage of multicell over 28 ℃ .
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鸡胚胚盘不同区域对原结诱导的区域性反应
Studies on the regional responses to inductor of the chick blastoderms of different ages
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草鱼早期胚胎胚盘细胞表面微区元素的研究
Microanalysis of the ionic elements in the embryo cell surface of the grass carp
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影响胚盘的因素包括母体的高血压、压力和吸烟。
Factors that can affect the placenta include maternal high blood pressure , stress and smoking .
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与牙鲆卵不同的是,大菱鲆卵在胚盘皮层区有皮层小泡;
Unlike eggs of flounder , there are cortical alveoli in the cortex of eggs of turbot .
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核的分裂迁移与胚盘的形成与一般昆虫相同。
Both the mode of cleavage and the formation of the germ band are in common with otherinsects .
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由鸡Ⅹ期胚盘获得的类囊胚包含禽类胚胎干细胞,且具有较强的增殖与分化能力。
The chicken blastocyte-like structure ( BLS ) derived from stage X embryo consists of blastodermal cells among which there are embryonic stem cells .
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同时获得了牙鲆和大菱鲆受精卵从胚盘形成到4-细胞期的一系列中心体、纺锤体及核的变化图象。
A serial of images of centrosomes , spindle and nuclear in olive flounder and turbot fertilized eggs from blastodisc formation to 4-cell stage were observed .
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鸡胚胎干细胞是一种多能性干细胞,从Ⅹ期胚盘分离胚盘细胞或早期鸡胚的生殖嵴分离原始生殖细胞,经体外长期抑制分化培养可得到鸡胚胎干细胞。
Chicken embryonic stem cells were pluripotent stem cell which derived from stage blastoderm cells or PGCs isolated from genital ridge by long-time restraining differentiation in vitro .
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卵腹面的胚盘细胞逐渐增厚为胚带,其他胚盘细胞发育成浆膜,浆膜刚一形成,羊膜即开始发生;
The blastoderm cells on the egg venter developed into germ band , the other cells into serosa . The amnion began to grow shortly after the formation of serosa .
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在鳙鱼胚胎发育的几个早期阶段,作者观察到在胚盘、分裂球和囊胚层细胞与卵黄这种重要物质之间有某种有机联系。
The authors have observed that the blastoderm , the blastomeres and the blastula cells have intimate relation with the yolk which plays a very important part in the development of the embryo .