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juvenile hormone     
相关语句
  保幼激素
     PRIMARY STRUCTURE OF ALLATOSTATIN 4, A NEUROPEPTIDE INHIBITOR OF JUVENILE HORMONE SYNTHESIS
     调控保幼激素合成的神经肽抑制素Allatostatin 4的初级结构分析
短句来源
     The induced activities of the mixed-function oxidases(MFOs) and juvenile hormone esterase(JHE) in vivo of Plutella xylostella treated with different concentrations of(spinosad),were investigated.
     采用生化分析方法,测定了不同浓度多杀菌素(spinosad)处理后小菜蛾体内多功能氧化酶(m ixed-function oxidases,MFO s)和保幼激素酯酶(juvenile hormone esterase,JHE)的活性,分析了酶活性的变化动态。
短句来源
     Topical application of exogenous juvenile hormone (JHⅢ) at the same time after engorgement with doses of 1μg, 5μg and 10μg affected nymphal molting peroids and viability.
     在若虫饱血后2天、7天和10天局部施用保幼激素(JH Ⅲ),剂量1μg、5μg和10μg,对若虫蜕化期和存活力有影响.
     Peptide Mass Fingerprinting Analysis of Hemolymph Juvenile Hormone Binding Protein from Embryo of Silkworm Bombyx mori
     家蚕胚胎血淋巴保幼激素结合蛋白肽质量指纹图谱分析
     Stimulation of the corpora allata(CA) with 200 μmol/L farnesol in vilro, produces no in-crease in juvenile hormone Ⅲ(JHⅢ)production,but methyl farnesoate(MF)accumulated by a dramaticincrease over control valucs.
     在心侧体-咽侧体(CC-CA)复合体的培养液中增加200μmol/L法尼醇(Farnesol)能引起甲基法尼酸(MF)的大量积累,但不提高保幼激素Ⅲ(JHⅢ)的生物合成率。
短句来源
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  幼激素
     PRIMARY STRUCTURE OF ALLATOSTATIN 4, A NEUROPEPTIDE INHIBITOR OF JUVENILE HORMONE SYNTHESIS
     调控保幼激素合成的神经肽抑制素Allatostatin 4的初级结构分析
短句来源
     The induced activities of the mixed-function oxidases(MFOs) and juvenile hormone esterase(JHE) in vivo of Plutella xylostella treated with different concentrations of(spinosad),were investigated.
     采用生化分析方法,测定了不同浓度多杀菌素(spinosad)处理后小菜蛾体内多功能氧化酶(m ixed-function oxidases,MFO s)和保幼激素酯酶(juvenile hormone esterase,JHE)的活性,分析了酶活性的变化动态。
短句来源
     Topical application of exogenous juvenile hormone (JHⅢ) at the same time after engorgement with doses of 1μg, 5μg and 10μg affected nymphal molting peroids and viability.
     在若虫饱血后2天、7天和10天局部施用保幼激素(JH Ⅲ),剂量1μg、5μg和10μg,对若虫蜕化期和存活力有影响.
     The effect of some insect growth regulators with juvenile hormone activity on Na +-K +-ATPase from the larvae of Ostrinia furnacalis was studied in laboratory by topical application.
     采用点滴法 ,室内研究了若干种具保幼激素活性的昆虫生长调节剂对亚洲玉米螟 Ostrinia furnacalis末龄幼虫 Na+-K+-ATPase的影响 .
短句来源
     Peptide Mass Fingerprinting Analysis of Hemolymph Juvenile Hormone Binding Protein from Embryo of Silkworm Bombyx mori
     家蚕胚胎血淋巴保幼激素结合蛋白肽质量指纹图谱分析
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  “juvenile hormone”译为未确定词的双语例句
     The Synthesis of Iinsect Juvenile Hormone Mimic; JS—31 (2—Propenyl 3, 7. 11—trimethyl—2, 4—dodecadienoate)
     昆虫保幼激素类似物——JS—31(3,7,11—三甲基—2,4—十二碳二烯酸—2—丙烯酯)的合成
短句来源
     Simple Total Synthesis of Juvenile Hormone Analogue——Isopropyl 11-Methoxy-3,7,11-trimethyl-2,4-dodecadienoate
     保幼激素类似物11-甲氧基3,7,11-三甲基-2,4-十二碳二烯酸异丙酯的简便全合成
短句来源
     Study on Juvenile Hormone Analogues ZR─512 Control in the Development of Chinese Bee Queen
     保幼激素类似物ZR─512对中蜂蜂王发育调控作用的研究
短句来源
     Among seven juvenile hormone analogues,ZR_(777),ZR_(515),ZR_(512),734-Ⅱ were the more efficient to the big headed ant,Pheidole indica Mayr,and their efficiency might be put in the following order:ZR_(777)>ZR_(515)>ZR_(512)>734-Ⅱ.
     通过保幼激素类似物和饵料对印度大头蚁防效的筛选,选出有效保幼激素类似物 ZR_(777)、ZR_(515)、ZR_(512)和最佳饵料熟鱼肉。
短句来源
     Dropping of three dosages of 1% juvenile hormone analogue, 40μl/ind,70μl/ind and 100μl/ind to Macrobrachium rosenbergii were conducted to increase the numberof spawning shrimp within a spawning period.
     用1%浓度的保幼激素类似物ZR515(JHA—ZR515)分别以40μl/尾、70μl/尾和100μl/尾三个剂量点滴罗氏沼虾均能不同程度提高罗氏沼虾产卵率。
短句来源
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  juvenile hormone
The results are discussed with respect to the influence of precocenes on the insect sensory system and the role of the juvenile hormone in regulation of its development.
      
Juvenile hormone and 20-hydroxyecdysone regulate N-acetyltransferase activity in Drosophila virilis
      
Juvenile Hormone Metabolism in Drosophila melanogasterImago is Controlled by Biogenic Amines
      
The Synthesis and Degradation of Juvenile Hormone in Drosophila Are Under Common Control
      
Ecdysteroids and Juvenile Hormone Control the Early and Late Stages of Oogenesis, Respectively, during Stress in Drosophila
      
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This paper reports the changes of nucleic acid and protein contents in the developing ovary of the normal copulating female of oriental migratory locust, Locusta migra-toria manilensis Meyen. Comparisons have been made on the effects of parthenogenesis and the treatment with gonadotropic factor of the male locust.The results obtained indicate that the ovary of the female locust begins to develop rapidly after copulation which takes place from 7 to 10 days after adult emergence. The fresh weight, the total phosphorus...

This paper reports the changes of nucleic acid and protein contents in the developing ovary of the normal copulating female of oriental migratory locust, Locusta migra-toria manilensis Meyen. Comparisons have been made on the effects of parthenogenesis and the treatment with gonadotropic factor of the male locust.The results obtained indicate that the ovary of the female locust begins to develop rapidly after copulation which takes place from 7 to 10 days after adult emergence. The fresh weight, the total phosphorus and protein contents of the ovary increase in different degrees. At the same time the length of the terminal oocyte increases gradually. On the fifteenth day after emergence the ovary nearly reaches its full development; and the contents of these ovarian constituents also reach to their highest peaks. At this time the acid-soluble phosphorus occupies about 70% of the total phosphorus content while the phospholipid-P about 20%.The RNA-P content from the first to the fifteenth day after emergence may increase 28 times and the DNA-P content 6 times. That the increase of RNA-P is more rapid than DNA-P and that the increase of the ratio RNA/DNA is parallel with ovary development indicate the increase of protein synthesis in the ovary. This has also been proved by a quantitative determination of the ovarian protein contents. During the course of ovary development, however, the percentages of RNA-P and DNA-P with reference to total phosphorus as well as to the fresh weight of the ovary decrease gradually. This means that other phosphorus components and other constituents in the ovary accumulate more rapidly than the nucleic acids.After the female locust has laid its egg-pod, the contents of nucleic acids and other constituents in the ovary decrease suddenly to the level similar to those of the female 10 days after emergence. Thereafter, the ovary development and the inceases of nucleic acids, protein and other constituents will start once more. At the same time the length of the terminal oocyte increases to a large extent. It thus shows a clear cyclic change of the ovary during reproductive activity.In the parthenogenetic female locust the pre-oviposition period is greatly prolonged. Its terminal oocyte grows so slowly that on the fortieth day after emergence the ovarian contents of nucleic acids, protein, etc. remain at the same level as if the female ten days after emergence.When the parthenogenetic female locust is treated on the lateral surfaces of the abdomen and the antennal foveolae with the crude lipid-extract from the fat bodies of the male locust, its ovarian development can be greatly accelerated. As a consequence the contents of the ovarian constituents increase to a level comparable to those of the copulating control. This fact indicates that, the crude lipid-extraet from the fat bodies of the male locust is gonadotropic. The significance of the above mentioned results is discussed. We propose that the gonadotropic factor may regulate the metabolism of the ovarian nucleic acids, protein, etc. via/or with the action of the juvenile hormone from the corpora allata.

本文报道东亚飞蝗交配后雌蝗卵巢中核酸和蛋白质的含量变化,以及孤雌生殖和雄蝗促性腺因子对卵巢中核酸和蛋白质代谢的影响。雌蝗羽化后7—10天进行交配,卵巢开始迅速发育,卵巢鲜重、总磷量以及蛋白质含量皆迅速增长,同时末端卵母细胞长度亦不断增加。到羽化第15天时卵巢已接近发育完成。末端卵母细胞长达6.2毫米。在各种磷化合物中,酸溶性部分在羽化15天时占总磷量的70%,磷脂磷可达20%。这表明酸溶性磷化合物和磷脂在卵巢发育过程中有较高的代谢和积累。卵巢中RNA-P增长28倍,DNA-P,增长6倍。RNA/DNA比值随着卵巢的发育而增加,这标志着蛋白质在卵巢中合成;对蛋白质含量的测定也证实了这一点。如果以RNA-P和DNA-P占总磷量的百分含量或以每百毫克卵巢鲜重计算其含量,则在卵巢发育过程中反而皆相对降低,表明卵巢中其他含磷化合物的积累优于核酸磷的增长。当雌蝗第一次产卵后,卵巢的各组成成份迅即减少,此后四天内卵巢中核酸和蛋白质的含量复可再度迅速增长,末端卵母细胞(即原未产卵前之末端第二卵母细胞)亦进一步长大,从而表现了卵巢发育的周期性变化。 人为隔离的孤雌生殖的雌蝗在羽化后40天内,卵巢发育缓慢,其末端卵母细胞长度增长...

本文报道东亚飞蝗交配后雌蝗卵巢中核酸和蛋白质的含量变化,以及孤雌生殖和雄蝗促性腺因子对卵巢中核酸和蛋白质代谢的影响。雌蝗羽化后7—10天进行交配,卵巢开始迅速发育,卵巢鲜重、总磷量以及蛋白质含量皆迅速增长,同时末端卵母细胞长度亦不断增加。到羽化第15天时卵巢已接近发育完成。末端卵母细胞长达6.2毫米。在各种磷化合物中,酸溶性部分在羽化15天时占总磷量的70%,磷脂磷可达20%。这表明酸溶性磷化合物和磷脂在卵巢发育过程中有较高的代谢和积累。卵巢中RNA-P增长28倍,DNA-P,增长6倍。RNA/DNA比值随着卵巢的发育而增加,这标志着蛋白质在卵巢中合成;对蛋白质含量的测定也证实了这一点。如果以RNA-P和DNA-P占总磷量的百分含量或以每百毫克卵巢鲜重计算其含量,则在卵巢发育过程中反而皆相对降低,表明卵巢中其他含磷化合物的积累优于核酸磷的增长。当雌蝗第一次产卵后,卵巢的各组成成份迅即减少,此后四天内卵巢中核酸和蛋白质的含量复可再度迅速增长,末端卵母细胞(即原未产卵前之末端第二卵母细胞)亦进一步长大,从而表现了卵巢发育的周期性变化。 人为隔离的孤雌生殖的雌蝗在羽化后40天内,卵巢发育缓慢,其末端卵母细胞长度增长缓慢,卵蜒中核酸和蛋白质的含量皆较低,相当于正常发育卵巢5—10天的水?

The effect of juvenile hormone analogues (JHA) on the soldier differentiation of the termite, Reticulitermes flaviceps Osh. has been tested. The results indicated that some JHA induced the development of a large number of pre-soldiers or worker-soldier intercastes when the workers were exposed to the filter paper impregnated with these compounds. The effective JHA are as follows: ethyl 3,7,11-trimethyldo-deca-2,4-dienoate, isopropyl 11-methoxy-3,7,11-trimethyldodeca-2,4-dienoate, and ethyl 11-methoxy-3,7,11-trimethyldodeca-2,4-dienethiolate....

The effect of juvenile hormone analogues (JHA) on the soldier differentiation of the termite, Reticulitermes flaviceps Osh. has been tested. The results indicated that some JHA induced the development of a large number of pre-soldiers or worker-soldier intercastes when the workers were exposed to the filter paper impregnated with these compounds. The effective JHA are as follows: ethyl 3,7,11-trimethyldo-deca-2,4-dienoate, isopropyl 11-methoxy-3,7,11-trimethyldodeca-2,4-dienoate, and ethyl 11-methoxy-3,7,11-trimethyldodeca-2,4-dienethiolate.

本文报道保幼激素类似物诱导黄胸散白蚁兵蚁分化的作用。试验证明:用保幼激素类似物处理的滤纸喂食工蚁组成的实验群体,可以引起工蚁向前兵蚁方向分化,发生这种分化的工蚁数量最高达45%。三种保幼激素类似物具有明显的作用,它们是:3,7,11-三甲基十二碳-2,4-二烯酸乙酯、11-甲氧基-3,7,11-三甲基十二碳-2,4-二烯酸硫代乙酯和11-甲氧基-3,7,11-三甲基十二碳-2,4-二烯酸异丙酯。

The present paper deals with the results from studies on the application of insect juvenile hormone analogues (JHA) and phytoecdysones (phyto-ECD) in se-ricultural practice in the autumnal season 1973. Bivoltine races of Bombyx mori L. were used and several synthetic JHA and two phyto-ECD were employed. The results may be stated as follows.1. Influences of JHA treatment on the rate of food/silk transformation, the spinning of silk threads and the enzymic activities of the digestive fluid: The spray of...

The present paper deals with the results from studies on the application of insect juvenile hormone analogues (JHA) and phytoecdysones (phyto-ECD) in se-ricultural practice in the autumnal season 1973. Bivoltine races of Bombyx mori L. were used and several synthetic JHA and two phyto-ECD were employed. The results may be stated as follows.1. Influences of JHA treatment on the rate of food/silk transformation, the spinning of silk threads and the enzymic activities of the digestive fluid: The spray of JHA emulsified with Tween 80 (Polysorbate 80) at closes 2-3 μg per larva either directly on the fifth instar larvae 72 hours after moult or on the mulberry leaves with the feeding larvae of the same age caused no great changes in the amount of silk spun per hour and in the rate of food/silk transformation as compared with the larvae in the control set. Owing to the lengthening of the larval stage, however, the total amount of food taken in the whole fifth instar excelled that of the control. It was found that as a physiological response to JHA treatment the amount of food taken in the first three days after the spraying was less than that of the control during the same period. As the larvae in the control set had reached maturity and stopped feeding the JHA-treated larvae would continue to feed so that the total amount of food taken in the instar became greater. Thus in sericultural practice the amount of mulberry leaves given in the first three days after JHA spraying could be appropriately spared. In accordance with the decrease of food intake during the first three days after spraying with JHA it was observed that the rate of silk protein synthesis and the increase in body weight and in amylaseand proteinase activities of digestive juice of the treated larvae were retarded. But these parameters of the treated larvae tended to increase after the larvae in the control set had reached maturity.2. Influences of JHA treatment on the quality of the cocoons as judged with technologically practical standards: Treatment with JHA may improve qualitative characteristics some of which are very important in the industry of silk manufacturing, provided that the dosage of JHA be kept in the appropriate range.3. Influences of phyto-ECD treatment: Phytoecdysone from Achyranthes bi-dentata and ponasterone A were found capable to shorten the last larval instar and to diminish silk production when added to the food of feeding larvae before maturity. But when they were applied after 10% of the larvae had reached maturity and in doses 2-5 μg per larva by spraying, the instar was shortened about 12 hours without any decrease in silk production and diminution in the practical quality of the cocoons. When combined with the application of JHA at different time the sprays of phto-ECD could shorten the instar and save human labour in sericultural practice without affecting the increase of silk production adversely.

1973年在春季试验的基础上,秋期继续进行了昆虫保幼激素类似物增加桑蚕产丝量的研究,并初步研究了植物性昆虫蜕皮激素与保幼激素的配合使用,结果如下: (1)喷布保幼激素类似物3号后,蚕体叶丝转化率与对照差异不大,这和春季结果相符。五龄每小时的产茧层量和食下量的成丝率,激素处理区与对照区均无明显差异。食下干物的总量则前老明显超过后者。但喷布激素后的三天左右时间内处理区的食下量却低于对照区;当对照区见熟后,处理区食下量继续增加。故在激素处理后的三天左右时间内,适当控制用桑是增产和减少桑叶消耗的主要关键之一。 激素处理后三天左右时间内,绢丝物质的生成和体重增加速度均低于对照区,淀粉酶活性也低于对照区。这与食下量变化的规律一致。蛋白水解酶活性的变化与淀粉酶基本相似,但亦具有自己的特点。 (2)保幼激素类似物3号喷布于五龄蚕体后,茧丝长、茧丝量、解舒丝长及有绪率等均明显增高,拉力和抱合显著改善,切断次数减少,匀度、净度、清洁、茸毛等均与对照区相仿,纤度略有偏租的倾向。以上结果与春季试验一致。多次试验结果亦证明在喷布时间和喷布剂量适当的情况下,对蚕丝解舒并无不良影响,但剂量过高,则有导致解舒率下降的危险。 (3)牛膝蜕皮激...

1973年在春季试验的基础上,秋期继续进行了昆虫保幼激素类似物增加桑蚕产丝量的研究,并初步研究了植物性昆虫蜕皮激素与保幼激素的配合使用,结果如下: (1)喷布保幼激素类似物3号后,蚕体叶丝转化率与对照差异不大,这和春季结果相符。五龄每小时的产茧层量和食下量的成丝率,激素处理区与对照区均无明显差异。食下干物的总量则前老明显超过后者。但喷布激素后的三天左右时间内处理区的食下量却低于对照区;当对照区见熟后,处理区食下量继续增加。故在激素处理后的三天左右时间内,适当控制用桑是增产和减少桑叶消耗的主要关键之一。 激素处理后三天左右时间内,绢丝物质的生成和体重增加速度均低于对照区,淀粉酶活性也低于对照区。这与食下量变化的规律一致。蛋白水解酶活性的变化与淀粉酶基本相似,但亦具有自己的特点。 (2)保幼激素类似物3号喷布于五龄蚕体后,茧丝长、茧丝量、解舒丝长及有绪率等均明显增高,拉力和抱合显著改善,切断次数减少,匀度、净度、清洁、茸毛等均与对照区相仿,纤度略有偏租的倾向。以上结果与春季试验一致。多次试验结果亦证明在喷布时间和喷布剂量适当的情况下,对蚕丝解舒并无不良影响,但剂量过高,则有导致解舒率下降的危险。 (3)牛膝蜕皮激素和百日青甾酮都具有缩短龄期的生理活性?

 
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