查询词典 pyriformis

Electrotopological state index for atom type was employed in the quantitative structure-activity relationship studies on the aliphatic alcohol toxicity to the Tetrahymena pyriformis, tomato, spider, bacterial luciferases, Fathead minnow, and rat.

采用原子类型电拓扑指数为结构描述子，对梨形四膜虫、番茄、红蜘蛛、发光细菌荧光素酶、呆鲦鱼以及鼠的脂肪醇毒性进行了定量构效关系研究。

In the present study, the toxicity of melamine was assayed on the unicellular eukaryotic system of Tetrahymena pyriformis T.

本文利用单细胞真核生物梨形四膜虫对三聚氰胺的细胞毒性进行了测定。

The lumber of Eschweilera Longipes and Cariniana Pyriformis contains many silicon, to seawater corrode have very strong resistance, it is the commodity lumber with famous South America.

Eschweilera longipes和Cariniana pyriformis的木材都含大量的硅，对海水的腐蚀有很强的反抗力，是南美闻名的商品木材。

Cell growth dynamics indicated that the IC50 value of melamine on T. pyriformis cells was 0.82 mg/mL.

峰信号的相对强度值代表了蛋白质在细胞内的相对含量。

The results show that tricocyst test of Tetrahymena pyriformis is a recommendable, handy, and reliable method for biomonitoring with freshwater species.

四膜虫刺泡发射试验不需加活性酶，是一种值得推荐的快速、简便、可靠的水生生物短期测试方法。

A newly developed three-dimensional holographic vector of atomic interaction field（3D-HoVAIF）was used to describe the chemical structure of 200 aromatic compounds with toxic effect on Tetrahymena pyriformis.

采用新型的的三维原子场全息作用矢量（3D-HoVAIF）研究了200种芳香化合物的化学结构与其生物毒性的定量构效关系。

Pyriformis. The half maximal inhibitory concentration (IC50) of melamine, changes of T. pyriformis cellular morphology and alterations of T.

三聚氰胺对梨形四膜虫的半数抑制浓度IC_(50，梨形四膜虫的细胞形态及细胞内蛋白质表达含量的变化是本次三聚氰胺对真核细胞毒性研究的重点。

The results show that tricocyst to Tetrahymena pyriformis can be caused by the organic compounds from the pond water treated with Cl2 and there are better corelations to groups of treating concentrations.

因此养殖水体加氯消毒后是否同样会产生具有致突变作用的有机物，已引起国内外水产界的广泛关注。

Our experiment demonstrated that T. pyriformis bioassay, with advantages such as less time-consuming, lower cost and simpler operations, provides a good alternative in vitro method to animal experiments for the risk assessment of potentially toxic substances.

实验证明梨形四膜虫生物测定法相对于动物实验具有耗时短、成本低、操作简便的优势，在潜在毒性物质的风险性评估实验中可成为一种优良的替代模型。

In this thesis, the acute lethal toxicity to Rana japonica tadpoles, the short-term phytotoxicity to Cucumis sativus and the population growth inhibition toxicity to Tetrahymena pyriformis of selected substituted phenols with multiple mechanisms of toxic action were compared and interspecies correlation was investigated.

本文比较了具有多种毒性作用机制的取代苯酚对两栖动物幼体的急性致死性毒性、对高等植物生长的抑制毒性以及对原生动物—四膜虫的种群生长抑制毒性，探讨了这一类污染物的毒性作用机制，进行了种间相关性研究。

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。