胚

Seeds small, obovate, angular and wingless or planoconvex with a narrow marginal wing; testa crustaceous, shiny; embryo small, straight; cotyledons subrounded, clasping, embedded in copious fleshy endosperm.

种子小，倒卵形，具角和无翼的或平凸具一个狭窄的边缘的翅；种皮壳质，发亮；胚小，直；子叶近圆形，抱茎，嵌入大量肉质胚乳中。

In this research, many indices of drought resistance during germination stage and seedling stage were chosed to evaluate comprehensively the drought resistance of 20 Dactylis glomerata L. germplasm from abroad.

以国外引进的20份野生鸭茅种质资源为研究材料，通过萌芽期PEG模拟干旱试验、幼苗期温室盆栽试验，系统测定了干旱胁迫下鸭茅种质萌芽期种子萌发抗旱指数、胚根、胚芽，幼苗期幼苗株高、根冠比、叶片水分饱和亏缺、质膜透性、脯氨酸含量等形态和生理指标，全面分析了这些指标的变化规律，对所引进的20份鸭茅种质的抗旱性进行了综合评价。

TTPW Degerminator , new developed equipment especially used for degermination and fragmentation of corn. Suitable for the processing industries such as: alcohol, chemical, medicine and food etc.

TTPW脱胚机是一种新型的玉米加工专用设备，集脱胚、脱皮、破碎，多种功能于一体，适用于酒精、化工、医药、食品行业原料的基础加工。

OBJECTIVE: The molar tooth germ of 12 weeks abortion human embryo was transplanted and cultured under kidney capsule to see the dentiparous level and establish the culture mode of the human tooth germ regeneration.

目的：将流产人胚胎12周的磨牙牙胚植入到裸鼠肾囊膜下培养，观察其成牙情况，建立人牙胚再生的培养模式。

Diploblastic cnidarians as the outgroups, the phylogenetic trees of bryozoans and lophotrochozoans were reconstructed by the 28S rDNA analyses of theirs and other related bilaterians obtained through GenBank with different methods, respectively. Meanwhile, the primary and predicted secondary structures of their partial divergent 28S rDNA domains were compared and analysed.

结合GenBank上其他三胚层动物的相关序列数据，以二胚层刺胞动物为外类群，运用遗传分析软件，以不同方法构建了苔藓动物以及触手冠担轮动物的分子系统树；同时绘制了各代表类群28S rDNA的部分多变区的二级结构，并对其形态学特征进行了比较分析。

Fruit drupaceous, or nearly a nutlet, often with headlike, wax-covered papillae; endocarp hard. Seeds nearly without endosperm; embryo straight; cotyledons fleshy, plano-convex.

果通常为核果，或者近小坚果，通常带有乳头状的蜡质凸起；内果皮硬种子近没有胚乳；胚直立；子叶肉质，平凸。

The cleavation rates and blastocyst development rates of cloned embryos were used to assess the efficiency of different operational procedure. Finally, the best combination of operational procedure, that the spindle-viewer system was used for oocytes enucleating, and donor cell was electrofused into ooplasm by electrical pulse (1.9 kV/cm, 10 ms, two) to reconstruct bovine cloned embryos.

以核移植胚胎的卵裂率、囊胚发育率作为检测指标，对不同的方法所获得的克隆胚胎的卵分裂率与囊胚发育率进行比较，最后筛选获得1个优化的牛体细胞核移植操作程序，即采用Spindle view系统对牛卵母细胞进行去核操作，将供核体细胞注射到卵周隙，然后通过电融合法将供体核引入去核卵细胞质(电融合参数为1.9 kV/cm，脉冲时程10 ms，方波2次间隔2 s)。

The fusion of donor-recipient pairs was induced with different parameters for electrofusion with variation in electric field intensity, pulse duratio...

在不同电融合条件下诱导两者间的融合，并对重组胚激活以及随后发育的早期阶段包括2细胞、4~8细胞和桑椹胚进行观察和计数。

Relationship between longans embryo development and changes of polyaminesThe thesis also studied the relationship between longan embryo development and contents of polyamines . Experiments showed that the contents of polyamines in normal ovules were higher than those in abortive ones during the whole embryogenetic process.

龙眼胚胎发育与多胺的变化研究了龙眼胚胎发育与多胺含量的关系，结果表明：正常发育的胚珠中多胺含量在胚胎发育的各个时期均高于败育胚珠。

Experiments showed that the contents of putrescine、spermidineand sperminein normal ovules were higher than those inabortive ones during the whole embryogenetic process.The highest levelswere reached 7 days after anthesis,with Put being the richest of thethree,then they declined.

试验结果表明：正常发育的胚珠中腐胺、亚精胺和精胺的含量在胚胎发育的各个阶段均高于败育胚珠，并在花后7d即达到最高值，其中Put的含量最高，随后都呈下降趋势。

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。