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诱导作用
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  induction
    Induction of Acetylcholinesterase by Sublethal Doses of Anticholinesterase Agents in Helicoverpa Armigera (Hübner)
    抗胆碱酯酶剂亚致死剂量对棉铃虫Helicoverpa armigera (Hübner)乙酰胆碱酯酶诱导作用的研究
短句来源
    STUDIES ON INDUCTION OF PLANTANT IVIRAL ACTIVITY BY PHOTOSYNTHETIC BACTERIA Rhodopseudomonas sphaeroides STRAIN P_4
    光合细菌P_4株对植物抗病毒活性的诱导作用
短句来源
    INDUCTION OF PATHOGENESIS-RELATED PROTEINS IN COTTON SEEDLINGS BY VAM FUNGI AND VERTICILLIUM DAHLIAE
    VA菌根真菌和大丽轮枝菌(Verticillium dahliae)对棉花体内PR蛋白的诱导作用
短句来源
    Induction of Host Plants on Carboxylesterase and Acetylcholinesterase Activity in Green Peach Aphid
    寄主植物对桃蚜羧酸酯酶和乙酰胆碱酯酶的诱导作用
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    Among three antagonistic bacteria ,W3 was the best for the induction.
    其中W3诱导作用最强。
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  “诱导作用”译为未确定词的双语例句
    OCCURRENCE OF ANTHRACNOSE INHIBITED BY DOPAMINE AND INDUCED BY SUGARS IN BANANA FRUIT AFTER HARVEST
    多巴胺和糖类物质对香蕉采后炭疽病发生的抑制和诱导作用
短句来源
    Control of TMV and pathogenesis related proteins induced in tobacco with Junkeduke
    菌克毒克防治烟草普通花叶病毒(TMV)及对病程相关蛋白的诱导作用研究
短句来源
    The inducing resistance effect of antagonistic bacterium B-916 on rice plant
    拮抗细菌B-916对水稻植株的抗性诱导作用
短句来源
    Disease Resistance Induced by Plant Activator Protein in Tomato
    植物激活蛋白对番茄抗病性的诱导作用
短句来源
    Effect of Photoperiod and Temperature on Diapause of Ostrinia furnacalis
    光周期和温度对亚洲玉米螟不同地理种群的滞育诱导作用
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  induction
(HereM3 denotes the vector space of 3×3 matrices over k andp>amp;gt;3.) The method of proof involves an induction, and is potentially of wide applicability.
      
Fourier transform, parabolic induction, and nilpotent orbits
      
We prove that in the symmetric space setting the functors of Fourier transform (in the sense of Deligne) and parabolic induction (in the sense of Lusztig) commute.
      
For an arbitrary ring A we construct quasi-P radical QP(A) with transfinite induction, and give another characterization of quasi-P radical: QP(A) = ∩ Ia ∣Ia.
      
Rotor broken-bar fault diagnosis of induction motor based on HHT of the startup electromagnetic torque
      
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  induced action
Conclusions: This isolated beating mouse heart model can be used to study drug-induced action potential prolongation and repolarization-related ventricular arrhythmias provoked by bradycardia and hypokalemia.
      
The first phase begins with the arrival of injury-induced action potentials, which act via calcium and cAMP to turn on genes used in the early stages of repair.
      
Using the twistor correspondence, this article gives a one-to-one correspondence between germs of toric anti-self-dual conformal classes and certain holomorphic data determined by the induced action on twistor space.
      
Risperidone-induced action potential prolongation is attenuated by increased repolarization reserve due to concomitant block of
      
These results imply that the depressant activity associated with PG administration is a specific PG-induced action rather than a general effect of long-chain unsaturated fatty acids.
      
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In South China the Lychee stink bog is a very serious pest of the Lychee tree.It passes only one generation each year.It was found that there is a great variation in the tolerance (natural resistance) of the adults to trichlorfon in the spring and winter.In order to study the mechanism of tolerance,experiments were conducted to monitoring the enzyme activity and observation were made on the ultrast-ructures of the fat bodies and the effects of trichlorfon in various periods of 1985-1386 in Guangzhou. Results...

In South China the Lychee stink bog is a very serious pest of the Lychee tree.It passes only one generation each year.It was found that there is a great variation in the tolerance (natural resistance) of the adults to trichlorfon in the spring and winter.In order to study the mechanism of tolerance,experiments were conducted to monitoring the enzyme activity and observation were made on the ultrast-ructures of the fat bodies and the effects of trichlorfon in various periods of 1985-1386 in Guangzhou. Results of studies showed that the enzyme activity of the alkaline phosphatase was high in the newly-emerged adults:the activity being 1.83 μmol/min,during the overwintering period,the activity was the lowest, being 0.30μmol/min and during the reproductive period being 0.67μmoi/min. After treatment with trichlorfon by topical application, theactivity was increased ,indicating the effect of induction. The activity of acid phosphatase was found to be different from that of the alkline phosphatase. From the newly-emerged adults passing through the winter to the reproductive period in the spring, the enzyme activity decreased gradually from 5.7μoml/min to 5.47μmol/min, 4.8μmol/min, respectively. There was a marked decreased after treatment with trichlorfon, particularly in October and December. The carboxylesterase was found to be similar to that of alkaline phosphatase, for the newly-emerged adults, 1.48mmol/min, overwintering, 0.42mmol/min and reproductive period,0.72mmol/min.Trichlorfon also induced the activity of the enzyme.Upon examination with electronic microscope,many vacuoles were observed in the fat bodies of the newly-emerged adult ,however,during the overwintering period granules of glycogen were found,and during the reproductive period linear,rough endoplasmic reticulum network was found to be dominant.No significant change in the ultrastructure of the fat bodies was found in the adults treated with trichlorfon,indicating that the target site of action might not be in the fat bodies.Spraying of trichlorfon twice a year in the spring and early summer when the tolerance of the insect to insecticides is the lowest has been used as a very effective method of controlling the bug for over 20 years in South China and up to the present no resistance to trichlorfon has ever been observed. This,serves as a good example that sophisticated application of insecticides may avoid or delay occurence of pesticide resistance in insect populations in the field and deserves further investegations.

本文研究了荔枝蝽象(Tessarotoma papillosa Drury)在不同季节期间脂肪体酯酶活力及其超微结构的特点,并探讨了敌百虫对它们的影响。结果表明:1.碱性 磷酸酯酶在新羽化成虫中活力较高,为1.83微克分子/分钟,到越冬期最低,仅0.30微克分子/分钟,在生殖期活力为0.67微克分子/分钟。用敌百虫处理后对酶活力有诱导作用。2.酸性 磷酸酯酶的变化与碱性磷酸酯酶不同,从新羽化成虫经越冬到生殖期,酶活力从高逐渐降低,分别为5.7微克分子/分钟,5.47微克分子/分钟和4.8微克分子/分钟。敌百虫处理后其酶活力有所降低。3.羧酸酯酶的活力变化与碱性磷酸酯酶相似,新羽化成虫为1.48毫克分子/分钟,越冬虫为0.42毫克分子/分钟,生殖期为0.72毫克分子/分钟。敌百虫对此酶也有诱导作用。4.新羽化成虫的脂肪体亚细胞结构以液泡为主,越冬期以脂肪、精原颗粒为多,到生殖期线粒体、粗面内质网大量出现。未观察到敌百虫处理后的生理病变。本文还讨论了有关自然抗药性机理的一些问题。

This paper reports experiments with extracts from flowers of the yellow azelea (Rhododendron molle) on several agricultural insect pests. It was found that the crude extracts of R. molle possessed high antifeedant and stomach poison activities against several species of agricultural insects. Dichloromethane extracts (FCb) from the flowers of R. molle showed high toxicity against the third instar larvae of the diamond-back moth (Plutella xylostella). A strain of the moth highly resistant to fenvalerate showed...

This paper reports experiments with extracts from flowers of the yellow azelea (Rhododendron molle) on several agricultural insect pests. It was found that the crude extracts of R. molle possessed high antifeedant and stomach poison activities against several species of agricultural insects. Dichloromethane extracts (FCb) from the flowers of R. molle showed high toxicity against the third instar larvae of the diamond-back moth (Plutella xylostella). A strain of the moth highly resistant to fenvalerate showed no resistance to the fraction FCb. the LC50 of the resistant and sensitive diamond-back moth populations to FCb was 0.33% end 0.37% respectively. The insects showed symptoms of excitment, spasm and vomiting quickly after eating the extracts of R. molle, but they were killed slowly. Among the extractions of R. molle, the fraction FC-22 was found to be the most potent. The fifth instar larvae of the oriental army worm (Mythimna separata) showed more than 90% inhibition of feeding when treated with 150 ppm of FC-22. The respiration of the fifth instar larvae of M. separata was markedly depressed after eating a small amount of the extract FC-22. Increased multifunction oxida-se (MFO) activity was induced by the extract FC-22. The results of our experiments also showed that the extracts of R. molle had a strong oviposition deterrent effect on the females of pieris rapae under green-house conditions. Results of potted trials demonstrated that cabbages were protected from the damage of the larvae of P. rapae by spraying with 0.5% of extracts from flowers of R. molle. Since R. molle showed efficacy in the control of agriculral insects, it seems to be promising as a botanical insecticide for use in integrated pest management programs of vegetable insects in China.

本文对黄杜鹃花提取物进行了生物活性研究。同时报道了黄杜鹃花提取物对粘虫、小菜蛾的拒食和胃毒活性试验以及对菜青虫的盆栽防治试验。并对黄杜鹃提取物较纯组份FC—22的作用机理进行了初步研究。结果发现,黄杜鹃氯仿、苯及二氯甲烷抽提物都有较高的活性。害虫取食黄杜鹃活性物质后会迅速出现兴奋、痉挛、呕吐等症状。FC—22是目前我们分离出活性最高的组份。150ppmFC—22对五龄粘虫幼虫的拒食率达93%。FC—22对三龄粘虫的LC_(50)为209ppm。对小菜蛾抗性及敏感两个品系的比较试验表明,抗杀灭菊酯的小菜蛾对黄杜鹃花二氯甲烷提取物没有表现出抗性。黄杜鹃提取物对菜青虫的盆栽防治效果较好,残效较长,在施药初期黄杜鹃提取物对菜白蝶有明显的产卵忌避作用,对孵化后的菜青虫一岭幼虫有较强的毒杀作用,但无杀卵作用。另外,对粘虫呼吸作用及多功能氧化酶测定结果表明,黄杜鹃提取物FC—22对粘虫幼虫的呼吸作用有一定影响,对粘虫的多功能氧化酶活性有诱导作用

Of 6 insecticides (fenvaleratc,cartap,dimehyopo,acephate,trichorphon,sevin) laboratory tested,all of them in low concentrations when mixed with Pieris rapac GV were far more effective than insecticides or GV used alone. The results of field plot experiments also showed that a mixture of graulosis virus and acephate was more effective against the imported carbage worm than either material alone. The protection effect to the cabbage leaf increased 33. 34 % and 77. 78% when the PrGV + acephate( 1. 53 × 109GIB/1...

Of 6 insecticides (fenvaleratc,cartap,dimehyopo,acephate,trichorphon,sevin) laboratory tested,all of them in low concentrations when mixed with Pieris rapac GV were far more effective than insecticides or GV used alone. The results of field plot experiments also showed that a mixture of graulosis virus and acephate was more effective against the imported carbage worm than either material alone. The protection effect to the cabbage leaf increased 33. 34 % and 77. 78% when the PrGV + acephate( 1. 53 × 109GIB/1 + 1 60 ppm) was compared with higher concentration of acephats(250 ppm) and 2. 12 × 109GIB/l used alone. This increase was significant when compared with the insecticide used alone at the 5% level.Further studies on the physiological and biochemical basis for the synergism of the mixture showed that the activity of cholinesterase (possibly including isoenzymes) in the larvae infected by PrGV and the larvae treated with PrGV-acephate,decreases 37. 94% and 70. 94% when compared with the check. These decreases were significant at the 1% level. The activity of microsomal mixed - function oxidases (MFO)showed 55. 37% -78. 78% reduction for the larvae affected with PrGV when compared with the check, as well as 116. 62% enhancement of the activity of MFO with acephate treatment alcne. The activity of MFO of PrGV - acephate treament was only 55. 03% enhancement to the check,far less than that of the acephate treatment alone. Due to the lowered activity of MFO. its ability for degrading insecticides would be decreased, and more insecticide (eg. acephate) could reach the target (eg. cholinesteiase). According to the results of biochemical analysis, PrGV application could decrease the insesticide resistance of the imported cabbage worm population, making acephate and other insecticides more effective.

菜粉蝶颗粒体病毒(PrGV)与多种低浓度的化学杀虫剂混用,对莱青虫的毒力具有明显的增效作用。PrGV与乙酰甲胺磷混用对菜青虫的防治效果和作物的保护率均优于单用PrGV或乙酰甲胺磷,并且混剂中化学杀虫剂的用量也可减少30%~50%。初步认为PrGV感染对虫体乙酰胆碱酯酶(AChE)。多功能氧化酶(MFO)活性的降低是混剂增效的内在原因之一。经PrGV感染的5龄虫,AChE活性降低了37.94%,MFO活性也下降了55.37~78.78%。病毒感染也影响到杀虫剂对MFO活性的诱导作用。由于MFO活性较低,其对药剂的降解力也随之下降,因此有更多杀虫剂可到达作用靶标AChE,进一步抑制原来活性已较低的感染病毒虫体的AChE的活性。

 
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