发生生物学

In the thesis, the systematic relationships of Acorus together with Araceae and Typhales are discussed on the basis of features from micromorphology, anatomy, pollen morphology and floral development, with the aid of the data from their embryology, cytology, chemotaxonomy and molecular biology.

本文用形态学、解剖学、孢粉学及花器官发生等方法，并借助胚胎学、细胞学、植物化学及分子生物学等方面的资料，比较研究了菖蒲属与天南星科及香蒲目的系统关系。

It may have a preventional function from Alzheimer's disease. Molecular biological studies are shown that apoE isoform has a isoform-specific role to neurodegeneration. ApoE〓 and apoE〓 aid to sustain the stabilization of cytoskeleton protein tau, while apoE〓 hyperphosphorylates tau to destabilize the microtubule protein, which will make neurocyte easy to form neurofibrillary tangles in AD. Clearance of amyloidal peptide by apoE〓 and apoE〓 is more effective than by apoE〓. ApoE〓 has the strongest ability to clear the amyloidal peptide. It is shown that apoE〓 has a stronger prevention from Alzheimer's disease.

分子生物学研究发现，apoE异构体对神经细胞退化表现出异构体特异作用，apoE〓和apoE〓有助于维持微管的稳定性，而apoE〓则使tau蛋白超磷酸化，破坏微管的稳定性，使神经细胞易于形成神经纤维缠结。apoE〓和apoE〓对A β的清除率远远高于apoE〓，apoE〓对A β的清除能力最强，可见apoE〓对AD的发生具有较强的阻止作用。

The results suggested that, the introgression lines showed extensive changes, compared with the recipient R122, in biological traits, such as plant type, plant height, growth duration, tillering ability, spikelet setting density, grain shape, apiculus color, blast resistance, rice quality, restoring ability and storability characters.

对稳定的3个玉米DNA导入系和4个稗草DNA导入系研究表明，与受体R122相比，导入系在株型、株高、生育期、分蘖力、着粒密度、粒形、稃尖颜色、稻瘟病抗性、稻米品质、恢复力和耐储藏性等生物学性状方面发生了广泛的变异。

A transformant line obtained by transfection of NTH3T3 cells with c-Ha-T24-ras gene was treated with 5mmol/L benzamide,an inhibitor of PARP enzyme for 4 weeks.Some changes in cellular properties of the transformant line were observed.

用 5mmol/L PARP抑制剂苯甲酰胺处理经c-Ha-T24-ras活化癌基因转染得到的转化细胞系，处理4周后发现转化细胞系的某些细胞生物学特性发生了改变，呈现出正常细胞的某些特性。

It will be invaluable for the research of hepatic cancer biologic behavior and the treatment of hepatic cancer.

希望在进一步的深入研究之后能确切了解BMI-1基因在肝癌发生发展中的作用，为肝癌生物学的研究和肝癌的治疗提供理论依据，为未来肝癌的治疗提供新的思路。

The investigation on the borers attacking Castanea mollissima in the northeastern area of Jiangxi Province was made. The damage characters was generalized and some effective control methods were provided.

对赣东北地区各地的板栗蛀干害虫进行了调查研究，初步查明了害虫发生情况和主要害虫的生物学，综合出了各种害虫在林间的识别特征，并提出了有效的防治方法。

Objective To observe the expression of bone morphogenic protein-2(BMP-2),transforming growth factor-β1(TGF-β1) and vascular endothelial growth factor in fracture healing after treated with Cervus and cucumis polypeptide injection so as to find out its action mechanism.

目的观察鹿瓜多肽注射液对骨折愈合过程中骨形态发生蛋白2(BMP-2)、转化生长因子(TGF-β1)和血管内皮生长因子等生长因子表达的影响，了解鹿瓜多肽注射液促进骨折愈合的分子生物学机制。

The occurrence of PSD is high, with certain features and related factors, and social psychological and neurobiological factors coact in the occurrence.

卒中后抑郁发生率较高，以睡眠障碍、绝望、运动阻滞和焦虑等主要表现，其相关因素有负性生活事件、病灶数目、心血管病史、抑郁症史，它的发生可能是社会心理学因素和神经生物学因素共同作用的结果。

To evaluate the relationship between the expression of cathepsin Dand biological be haviour of bladder transitional cell carcinomaand the mechanisms of invasiveness.

研究组织蛋白酶D的表达与膀胱移行细胞癌生物学行为间的关系，并探讨BTCC发生浸润转移的机制。

With a study of plant community succession on 5 stocking rates,herbage utilizational efficiency and risk-benefit balance,it is suggested the sustainable development should follow:(1)no degradational principle of rangeland,(2)the maximum herbage utilizational efficiency,(3)the risk-benefit balance,When stocking rate was no more than 2.67 sheep/hm2,the proportion of grasses and plant biodiversity index and evenness were increased based on Artemisia frigida and short-grass rangeland.

草地畜牧业可持续发展的三大生物经济原则为草场不退化原则、最大生物学效率原则和风险-利润权衡原则：(1)草场不退化原则。在冷蒿小禾草退化草原上，暖季期间1.33～2.67羊/hm\+2的放牧率下可使其发生恢复演替，禾草的比例增大，植物多样性指数和均匀度指数均有所提高，从而达到利用式改良的目的；相反，若继续重牧或过牧，放牧绵羊喜食的植物种类将进一步减少，植物多样性指数也有所降低。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。