形态发生的

The appearance of DNA ladder from the ovules in which pollen chamber formation was undergoing, together with TUNEL assay and ultrastructural changes, demonstrated that the nucellar cell death, doomed to bring about pollen chamber, was a process of programmed cell death .

在贮粉室的形态发生过程中，相关珠心细胞的DNA电泳出现DNA ladder、其细胞核被TUNEL反应所标记以及它们的超微结构变化都说明，参与贮粉室形成的珠心细胞的死亡是一种细胞程序性死亡（programmed cell death，PCD）。

Taken together, these findings suggest that Bmp-4, Shh and Wnt-5a gene expressions may act together on the epithelial-mesenchymal interactions occurring in several aspects of the early mouse craniofacial development, such as odontogenesis, neuronal development, maxillae and mandible ossification, palatogenesis and tongue formation.

综上所述，这些研究结果表明，骨形态发生蛋白4， Shh和Wnt信号- 5A型基因表达共同作用，对早期小鼠颅面部的发育中上皮间的相互作用产生很大影响，如牙齿的发育，神经发展，上颌骨和下颌骨骨化及舌头的形成。

In comparing the floral morphogenesis with that of other genera with T-type chromosomes in the family, we considered that Coptis contains some primitive characters. The results are consistent with molecular systematic studies showing Coptis as one of the basal groups of Ranunculaceae.

通过与其它具T-型染色体类群在花形态发生上的比较，认为黄连属表现出了某些原始的性状，这一结果与分子系统学研究认为黄连属为毛茛科的基部类群的结论一致。

In the early stage of its development, once induced by the morphogen,transcription factors such as SHH, WNT and BMP, are specifically expressed in neuronalcells to trigger the downstream effects, and determine the cell fate finally.

在神经系统发育的早期，在SHH，WNT，BMP等形态发生因子的调控下，神经细胞内的转录因子特异性表达，并启动一系列的转录事件，最终决定神经细胞分化方向。

The Hedgehog morphogen governs cell differentiation and proliferation in a diverse array of patterning events in many animal species, ranging from insects to mammals. The seven-transmembrane protein Smoothened transduces the HH signal across the plasma membrane but molecular mechanisms of its activation are poorly understood. Zhao et al .

Hedgehog形态发生素在从昆虫到哺乳动物在内的很多不同动物物种的各种不同成形事件中决定细胞的分化和增殖。7-跨膜蛋白Smo跨越胞质膜传导Hh信号，但科学家对Smo激发的分子机制却很不了解。

The first chapter primarily retraces the history of Chinese nation which revealed the social and historical condition for Chinese modernization, and investigates the traditional social forms of minorities in the southeast and changes of china into modern nation.

第一章主要研究中华民族形成的历史逻辑以及中国迈向现代民族国家的历史基础和社会条件，考察西南少数民族社会的传统形态以及中国在近代国家转型过程中所发生的变化。

Gelatin microsphere is firstly made by encapsulating bFGF into gelatin by special manufacture process, then this microsphere was combinated into PLGA conduit or PLGA film.when used, we need only pack the injury peripheral nerve, injury spinal cord, wounded pars encephalic with the PLGA conduit. The conduit or film can slowly release buff which would be absorbed by around tissues.bFGF was already proved to be nutritious to the regeneration and alive of neuron and protect injury neuron.bFGF can also promote morphogenesia and division of nerve cell which would raise the survival rate of neuron, guide the generation of axon etc.bFGF is one of the important factors of sustaining the normal survival of cholinergic nerve.

使用时，只需将此材料贴敷外周损伤神经伤患处，脊髓伤口，或在脑部开颅手术后填充于术后创面，可有效地在伤口局部缓慢地释放并由机体组织吸收bFGF等神经营养因子。bFGF等已被证明具有神经营养作用，可促进神经元的再生与存活，保护受损的神经元。bFGF等对神经细胞兼有促进形态发生与分裂作用，具有提高神经元的成活率、诱导轴突向外生长等功能，是维持前脑基底部胆碱能神经元正常生存的重要因素。

Inthe whole process, the oocytes, nurse cell and follicle cell morphology change. Inoocyte yolk formation and growth, the number of its nuclear trophoblast cell nucleoli,lamphrush chromosome with a strong synthetic material; oocytes also some syntheticmaterial; follicle cells in the yolk protein synthesis, provide access to exogenous yolkprotein.

在卵子发生的整个过程中，卵母细胞、滋养细胞及滤泡细胞形态均有明显变化；在卵母细胞生长及卵黄形成期，滋养细胞核内的多核仁现象、灯刷染色体与旺盛的物质合成有关；卵母细胞本身也合成一些物质；滤泡细胞参与卵黄蛋白的合成，并为外源性卵黄蛋白提供通道。

Keeping this in mind, a study was undertaken to determine the effect of CA on early growth of mung bean (Phaseolus aureus=Vigna radiata), morphogenetic response in hypocotyl cuttings of mung bean, and changes in the activities of some associated enzymes – proteases, polyphenol oxidases, and peroxidases – and endogenous total phenolics at root initiation (third day; 48 h; appearance of root primordia; RI), root expression (fifth day; 120 h; appearance of roots; RE), and post-expression (seventh day; 168 h; PE) stages of rhizogenesis.

保持这一点，一项研究，以确定影响钙对早期生长绿豆（ phaseolus金黄色葡萄球菌=豇豆拉迪雅塔），形态发生反应，下胚轴插条绿豆，和变化，在活动的一些相关的酶-蛋白酶，多酚氧化酶，过氧化物酶-和内源性总酚的从根本上启动（第三天； 4 8小时；外观根原基；里），根的表达（第五天； 1 20改为H级；外观根；转口），和后表达（第七天； 168改为H级； PE ）的阶段rhizogenesis 。

Microcosm study of surface water from the stream showed that no significant change in NH4-N and NO3-N concentrations occurred during the five-day incubations.

各采样点的NO2-N、DO、DOC浓度与NO3-N也存在一定的线性相关关系，说明了硝化过程的发生和氮在不同形态之间的转化。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。