查询词典 esterase

Objective To explore the role of non-specific esterase of Culex pipiens pallens in resistance against insecticides.

目的 探讨非特异性酯酶（Non-specific esterase，NSE）在淡色库蚊对不同杀虫剂抗性中的作用。

Objective To detect the resistance index and esterase activity of each generation of DDVP-resistant Culex mosquitoes and analyze the relationship between insecticide resistance and esterase.

目的检测抗DDVP品系各世代的抗性指数及蚊体内酯酶的活性，探讨蚊虫抗性与酯酶的关系。

The factors influencing the technology of immobilizing wheat esterase and the characters of immobilizing wheat esterase are studied.

考察了小麦酯酶固定化条件的影响因素，并对固定化酶的性质进行了研究。

JH-esterase activity was firstly detected in female ticks of this species and the esterase dynamics was analyzed.

在长角血蜱首次检测到代谢保幼激素的JH酯酶活性，并对其随发育期的活性动态进行了分析。

S40Q enhanced the esterase activity 1.2-fold when p-nitrophenyl butyrate was used as the substrate; S40G increased the esterase activity 1.2-fold when p-nitrophenyl valerate was used.

以对硝基苯丁酸酯为底物，S40Q使AIbD酶酯酶活性提高1.2倍；以对硝基苯戊酸酯为底物，S40G使活性提高1.3倍。

For increasing our knowledge on the pathology of entomopathogenic nematodes to ticks, the changes of total protein level, esterase activity and esterase bands in the hemolymph of female Haemaphysalis longicornis Neumann after infection by the nematode Heterorhabditis bacteriophora E-6-7 (Hb E-6-7) were detected.

用嗜菌异小杆线虫Heterorhabditis bacteriophora E-6-7 (Hb E-6-7)感染长角血蜱Haemaphysalis longicornis雌蜱，测定感染后雌蜱血淋巴总蛋白含量、酯酶活性及酯酶同工酶的变化，以探讨昆虫病原线虫对蜱的致病机理。

The synergism ratios of piperonyl butoxide to alpha-cypermethrin in these three strains were similar(about 20-fold), which suggested metabolic detoxification probably confers about 20-fold inherent resistance in the B-type whitefly, as PBO is a mixed function oxygenase and esterase inhibitor and glutathione S-transferase is not affinity to resistance in B. tabaci. The synergism ratio of triphenyl phosphate to alpha-cypermethrin in the NJ strain was 12-fold, which implied the synergism of PBO in the B-type whitefly is mainly due to inhibiting esterase activity.

增效试验表明PBO对这三个品系的增效作用均为20倍左右，因为在烟粉虱中PBO即是多功能氧化酶抑制剂，也是酯酶抑制剂，而谷胱甘肽S-转移酶与抗性无关，因此推断代谢酶在B型烟粉虱对高效氯氰菊酯的抗性发展中起到的相对作用可能为20倍左右，而且这种抗性是B型烟粉虱天生的；TPP对NJ品系的增效作用为12倍，说明PBO增效作用主要是由于抑制酯酶而引起的，即代谢抗性大部分由酯酶所贡献。

A strain NK13 was screened for a certain extent asymmetric hydrolyze the rac-ketoprofen Chloroethyl ester and identified as Bacillus megaterium. For the preparation of gene libraries, a positive clones was obtained from the tributyrin flat. The sequence of this esterase gene had been analysised, and contained the whole ORF of an esterase gene with the length of 933bp.

以本实验室筛选出的一株具有不对称拆分消旋酮基布洛芬氯乙酯的菌株NK13为材料，经初步鉴定为巨大芽孢杆菌，通过构建其基因文库，从中筛选得到一阳性克隆重组子pUC-NK。

Based on the esterase inhibition actions of pesticides,different concentrations of dichlorvos,trichlorfon,malathion and carbaryl were determined by free and immobilized chicken liver esterase.

利用农药对酯酶活力的抑制反应，分别采用游离的和固定化的鸡肝酯酶，对不同浓度的敌敌畏、敌百虫、马拉硫磷和西维因进行了测定。

The leaf esterase,endosperm esterase, root esterase and coleoptile esterase zymogram phenotypes in Set II alien addition Lines of wheat-wheatgrass, octoploids of wheat-wheatgrass, common wheat and wheatgrass were analyzed.

本文分析了小冰麦异附加系列II、八倍体小冰麦、普通小麦和天兰冰草的叶片酯酶、胚乳酯酶、根酯酶和胚芽鞘酯酶和酶谱表型。

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。