分子分离

To reduce the poisonous compounds in the breeding ponds,five species of bacteria including denitrobacteria ,photosynthetic bacteria,thiobacteria and bioflocculation bacteria were screened from the breeding water.

针对养殖水体中因氨态氮、硫化氢和小分子有机酸富营养化引起的污染问题，分离筛选出硝化细菌、反硝化细菌、光合细菌、硫化细菌和生物絮凝菌等具有不同生理功能的污染物治理菌株，经优化配伍制备出性能优良的复合功能菌，结果表明：硝化细菌对氨态氮的去除率达97.8%，亚硝态氮的去除率达95.7%，反硝化细菌对硝态氮的去除率为96.4%，光合细菌和硫化细菌对硫化氢的去除率为55%，微生物絮凝菌的絮凝效率为83%；复合功能菌对CODCr、NH4+-N，总氮、硫化物的去除率分别可达94.3%，89.6%，88.7%和71.3%。

Objective To observe the unique DNA profile and the relationship between DNA profile and phenotype of Trichophyton rubrum, and establish an effective molecular method to identify T. rubrum.

目的用PCR方法扩增红色毛癣菌和须癣毛癣菌临床分离株的DNA，观察PCR指纹的差异以及基因型与传统表型的关系，建立一种红色毛癣菌分子生物学鉴定方法。

Objective To observe the unique DNA profile and the relationship between DNA profile and pheno type of Trichophyton rubrum , and establish an effective molecular biologic method to identify T. Rubrum.

目的 用聚合酶链反应扩增红色毛癣菌和须癣毛癣菌临床分离株的DNA，观察PCR指纹的差异以及基因型与传统表型的关系，建立一种红色毛癣菌分子生物学鉴定方法。

Acidic peptide was a new small molecular peptide separated from bovine brain and is tripeptide composed of three glutamic acids.

酸性肽为本课题组从牛脑中分离出的一个新的小分子肽，由三个谷氨酸连成的三肽。

Acidic peptide is a new small molecular peptide separated from bovine brain in this research team and is tripeptide composed of three glutamic acids.

酸性肽为本课题组从牛脑中分离出的一个新的小分子肽，由三个谷氨酸连成的三肽。

Methods:Dehydration of D-mannitol,followed by a reaction sequence of selective protection,benzylation,deprotection,tritylation,benzylation and removal of the trityl group,afforded the title compound.

以D-甘露醇为原料构建2，5-脱水-3，4，6-O-三苄基-D-葡萄糖醇的手性分子骨架，通过选择性地对多羟基的保护和脱保护达到对产物分离的目的。

PCR-DGGE technology is a very important analytical tool with the development of molecular biology. Comparing with the traditional identification methods, PCR-DGGE technique is fast and easy to operate. The technology can also achieve the effect of separation for Unculturable microorganisms. Thus, the technology is widespread concern and attention in microbial ecology.

PCR-DGGE技术是随着现代分子生物学发展起来的一种很重要的分析手段，与传统的种群鉴定方法相比，PCR-DGGE技术具有快速和操作简便等优点，对于不可培养的微生物也能达到分离的效果，因而在微生物生态学中受到普遍关注与重视。

The result showed that the isolated strain was Ustilago esculenta, and indole acetic acid, abscisic acid, and gibberellic acid3 (GA3) were detected in the fermentation broth, and the contents of IAA is 0.1306mg/L, ABA is 0.01367mg/L.

结果表明：用菌落形态与孢子形态鉴定和分子生物学鉴定的方法，对茭白中分离的一个菌株鉴定为菰黑粉菌，且在其发酵液中检测到植物激素IAA、ABA和GA3，其中IAA含量为0.1306mg/L，ABA含量为0.01367mg/L。

We find that, during the course of coating, thermodynamic cortrol can influence efficiency and life for column more effectively than kinetic cortrol; the rinse and laying out after coated zwitterionic surfactant can also influence the thickness and uniformity of layer coated.

三。探索了 EIC 体系的实际应用在 EIC 体系的应用方面研究了无机、有机电解质和极性化合物在该体系的色谱保留行为，探索了一些无机、有机阴离子和极性有机分子在 EIC 体系的色谱分离。

The physio- biochemical characterization,Biolog analysis and 16S rDNA molecular identification were performed.

本论文旨在考察1株新分离的Dyella属菌株LA-4对联苯的降解特性并对其代谢基因进行分子遗传学研究。

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。