分类学的

At present the mechanism of endangered species mostly confined to the morphology point of view, few physiological point of view of ecology, the lotus leaf fern Adiantum growth conditions of the study also stay in more qualitative analysis, there are few quantitative analysis of its optimum growth environment , The experimental use of morphological and physiological ecology of the idea and will use the components of the research methods, to be a long time to further explore their own independent development of plant taxonomy, morphology, physiology, ecology and other subjects the intrinsic link between , With a view to a new high on the survival of endangered species, adaptation and evolutionary mechanism.

目前对物种濒危机理的研究大都局限在形态学角度，很少有生理生态学角度的研究，对于荷叶铁线蕨生长条件的研究也多停留在定性分析上，很少有定量分析其最适生长环境，本实验采用形态学与生理生态学结合的思想，并将采用构件理论的研究方法，拟进一步探讨长期以来各自独立发展的植物分类学、形态学、生理学、生态学等学科之间的内在联系，以期能在一个新的高度上探讨濒危物种的生存、适应对策和进化机制。

In this study, the classification of Chinese Babesia spp. infective to cattle were carried out by the classical methods and molecular biotechnology, and investigated the vector ticks of an unidentified Babesia sp. isolated from Xinjiang province by the experimental transmission, and observed the developmental forms of Babesia sp. in the engorged Hyalomma anatolicum anatolicum females;We developed the indirect hemoagglutination test for Babesia bigemina, and evaluated its effect in the sero-survey;We made slow-released injection of imidocarb, and estimated its efficacy on the treatment and prevention of Babesia bigemina infection by the laboratory work and the field tests. The major results were presented as following:1. Discovery of a bovine Babesia sp.

本研究以牛的巴贝斯虫为研究对象，采用传统技术与分子生物学技术相结合的方法对在我国已分离的牛巴贝斯虫病主要病原进行了分类学研究，在实验室内运用蜱传播试验对分离于我国新疆的牛的巴贝斯虫未定种的媒介蜱及其传播方式进行了详细的研究，采用组织抹片方法对牛的巴贝斯虫未定种在小亚璃眼蜱饱血雌虫体内的发育过程进行了观察；建立了间接血球凝集试验诊断方法，并对其在血清学调查中的应用效果进行了考察；研制了咪唑苯脲缓释注射剂，并通过实验室工作和田间试验对防治效果进行了评价。

Neighbor-Joining analyses of teleost hepcidins showed that the eelpout 4cys variant arose independently from the notothenioid version, which lends support to adaptive evolution of reduced cysteine hepcidin variants on cold selection. The NJ tree also showed taxonomic-specific expansions of hepcidin variants, indicating that duplication and diversification of hepcidin genes play important roles in evolutionary response to diverse ecological conditions.

另外我们在另一种生活于南极水域的eelpout中也发现了一种含有4个半胱氨酸残基的hepcidin，而eelpout和南极鱼notothenioid在分类学上分属于不同亚目，是一类相差较远的物种，利用Neighbor-Joining方法建树分析发现eelpout的hepcidin虽然同样仅含有4个半胱氨酸残基，但和notothenioid的4cys_hepcidin有着不同的起源，这也进一步说明了hepcidin中半胱氨酸残基数目的减少确实是对寒冷环境的一种适应性进化。

Thus, the molecular techniques are becoming more popular in the differentiation of Microcystis.16S rDNA, 16S-23S rDNA ITS and PC-IGS have been used in phylogenic classification of Microcystis, they are common molecular markers of taxonomic researches and a number of results have been carried out.

利用分子生物学技术鉴定微囊藻的种属具有快速而且可靠的优势，因此已成为了分类研究的新趋势。16S rDNA、16S-23S rDNA ITS、PC-IGS等基因序列在微囊藻的分子系统发育方面已有一些研究结果，是目前分类学研究较常用的分子标记，但各自仍存在了一定的问题。

ITS2(Intemal Transcribed Spacer 2) region in ribosome DNA has a character of conservative that makes a low aberrance ratio, on the other side, ITS-2 region evolves itself. According to the characters, ITS-2 region sequencing is an effective parameter in taxology and pests-control..

核糖体基因的第二内转录间隔区有较高的保守特性，同时进化速度又较快，因此序列进行测序得出的种内差异，是系统发育学的有力参数，也有助于异色瓢虫分类学和农林虫害的防治。

The characters in Impatiens, such as shape and lenghth of stomata, T-thickening at the polar region of guard cells and ornamemtation of leaf epidermis are more important between species and can be used one of the taxonomically important characters of Impatiens.

叶表面纹饰，气孔的形状、大小及气孔保卫细胞两极&T&型加厚等特征在种间具有一定的差异，可作为该属植物分类的重要特征之一文中还探讨了叶表皮微形态学特征在凤仙花属分类中的意义及有关紫花黄金凤的分类学地位间题。

In this experiment,nad4 and cox1 genetic variation of cestodes were firstly studied.Genetic variation and DNA polymorphism of mitochondria were carried out from mitochondrial gene.So the effective genetic markers were found which studied molecular taxonomy and Phylogenetic relationship of cestodes.This study have filled in the blank space of research that was related to China\'s cestodes mitochondrial genome research.

本试验首次对绦虫nad4和cox1基因的遗传变异情况进行研究，从线粒体基因的角度，开展绦虫线粒体遗传变异和DNA多态性方面的研究，找到了研究绦虫分子分类学、种群遗传关系有效的遗传标记，填补了我国寄生绦虫线粒体全基因组相关研究的空白。

This thesis attempt to provide some scientific evidence for the chemotaxonomy and medicine development of these genuses and to provide some of molecular basis for anticancer mechanisms of flavonoids.

本论文研究工作对上述的三个属的化学分类学及药用植物资源的合理应用、开发提供了一定的科学依据，同时对从分子水平研究黄酮类化合物抗肿瘤作用机制提供了一定的理论基础。

During the past decades Chinese zoologists have exerted great efforts in the study of taxonomy and protection of wild animals, especially the rare and endemic species, as well as those of great economic value.

过去数十年间，我国的动物学工作者在分类学研究和野生动物的保护方面，尤其是对珍稀种、特有种和重要的经济种的保护方面作出了巨大的努力。

Relationship revealed by cytotaxonomy, which based on gene vector chromosome, is an improvement and examination of original classification and investigation of speciation mechanism and their evolution direction.

基于对基因载体染色体的研究，细胞分类学所揭示的类群之间的亲缘关系，可作为进一步审查、改进原来分类系统的依据，提示物种的形成机制和类群的进化方向。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。