胚

In different NaCl salt stress solution concentrations (which were 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35 mol/L), the seven salt tolerance of Melilotus varieties of the germination percentage was calculated, including the relative germination percentage, seed potentiality, germination index, the sprouts length, the relative sprouts length and the salt index.

以7个耐盐草木樨品种种子为材料，用不同浓度NaCl（NaCl浓度分别为0.05， 0.10， 0.15， 0.20， 0.25， 0.30和0.35 mol/L）胁迫处理后，测算其种子的发芽率、相对发芽率、发芽势、发芽指数、胚芽长度、相对胚芽长度和耐盐指数。

In the favorable inoculation season, the induction percentages of meristematic globules from flowers and embryogenic calli from scalps were 15～80％ and 0～10％ respectively, depending on the cultivars and incubation conditions.

从多芽体获得胚性愈伤组织的概率大约为0～10％，胚性愈伤组织的诱导率受基因型和品种、接种时期及培养条件等因素的影响。

Methods Both in malformed embryos induced by excess retinoid acid and normal KM mice, expressions of lectin receptors of WGA, RCA and ECL in the epithelium of palatal shelves and the mesenchyma were determined by affinity histochemistry using biotin-marked corresponding lectins.

以生物素标记的凝集素受体WGA、RCA和ECL为探针，应用亲和细胞组织化学染色方法检测上述3种凝集素受体在RA致畸鼠胚和相应对照组鼠胚腭板上皮及其间充质的分布状况和变化规律。

Nodal and Activin, members of TGF-βsuperfamily, are mediated by the TGF-βreceptors ALK4 or ALK7, and they play important roles in mesendoderm induction and anteroposterior patterning of the neuroectoderm.

TGFβ家族的信号转导由TGFβ受体ALK4或ALK7介导，在脊椎动物胚胎的中胚层和内胚层诱导以及神经外胚层的前-后轴线分化中起着重要作用。

CCSK is a rare type of renal neoplasm in childhood and its diagnosis relies mainly on histopathology and immunohistochemistry. It is important to be familiar with the morphological variants of CCSK to avoid confusion with other similar lesions, such as Wilm's tumor, congenital mesoblastic nephroma, malignant rhabdoid tumor of kidney, primitive neuroectodermal tumor.

CCSK是一种罕见的儿童期恶性肾肿瘤，诊断主要依靠组织病理学和免疫组化，熟悉其形态学变异有利于与其它类似病变如肾母细胞瘤、先天性中胚叶肾瘤、肾恶性横纹肌样瘤、原始神经外胚叶肿瘤等鉴别。

Vascular development begins when mesodermal cells differentiate into endothelial cells, which then form primitive vessels.

在中胚层细胞分化成内胚层细胞时，血管开始发育，并随后形成最初的血管。

The optimum work concentration of the indirect ELISA for detecting and screening positive hybridoma cells was established by research again and again. Polystyrene microtitration plates were coated with the purified DHV antigen at the amount of 0.5μg/well.

对鸡胚和鸭胚增殖的尿囊液病毒用反复冻融、氯仿处理、0.22μm滤膜过滤、PEG反透析浓缩以及Sephadex G-200分子筛层析的方法进行纯化，并以此来包被酶标板以及进行BALB/c小鼠免疫，效果良好。

Analysis of patient's primary leukemia blasts revealed that those carrying the t(8;21) generating AML1/ETO, the most common acute myeloid leukemia-associated fusion protein, display low levels of a microRNA-223 (miR-223), a regulator of myelopoiesis.

对原发性白血病的胚细胞进行分析发现具有 t （8；21）能够产生 AML1/ETO 蛋白，而这种蛋白是急性髓性白血病相关融合蛋白中最常见的一种，这样的白血病胚细胞具有微小 RNA-223（ miR-223）的低表达， miR-223是骨髓细胞生成的调节因子。

Results The nephrogenic zone appeared in 14th day's kidney of the fetus development, medulla could be found in the late stage of fetus development kidney and developed after birth.

结果 皮质出现的时间为胚龄14日，早期髓质结构出现在胚龄第18日。

The results showed that in the control and experimental groups, HMGB1 immunoreactivity was all diffusely distributed in the cytoplasm of neuroepithelial cells and mesenchymal cells surrounded the neural tube at 8,16 and 24 hours after water bath treatment.

将孕鼠随机分为实验组和对照组，分别于水浴处理后8、16、24、40、64 h（相当于胚龄第8、8.5、9、9.5、10.5 d）处死孕鼠，剖腹取鼠胚，制备石蜡切片，应用免疫荧光染色技术检测NTDs发生过程中HMGB1在神经上皮细胞中的表达变化。

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。