幼虫

The biological safety of Bacillus thuringiensis Strain YJ-2000 which acted the low toxicity to Bombyx mori newly hatched larvae and marked insecticidal activity to other lepidopterous insects was evaluated compared with other two Bt strains,i.e.

YJ 2 0 0 0菌株除导致 1龄幼虫历期延长 11 1%、取食量减少 0～ 6 0 0 %及体重降低 5 2 3%～ 6 2 5 %外，对 2龄及其以后各龄幼虫的存活率、发育历期、取食量、眠蚕体重、化蛹率、蛹期、全茧量、蛹重、茧层量、羽化率和产卵量等均无显著影响。

Larva broods first, first eat by moth feeds bark, eat by moth enters xylem after Feburary, principle of eat by moth is general up; Mature larva spits a kind of limy material to make room pupate before pupate.

初孵幼虫，先蛀食树皮，2月以后蛀入木质部，蛀道一般向上；成熟幼虫在化蛹前吐出一种石灰质的物质作室化蛹。

To investigate the effects of morphine on the growth of Lucilia sericata larvae or pupae,and the deduction of decedent postmortem interval based on it,rabbits were injected with different doses morphine hydrochloride and killed,and their muscles were used to feed the newly-hatched L.sericata larvae.

用盐酸吗啡注射家兔，处死后用家兔的肌肉组织饲养丝光绿蝇初孵幼虫，研究吗啡对丝光绿蝇幼虫和蛹生长发育的影响及其在法医学中推断死者死亡时间方面的应用。

Subclones of the hybrid 741 took on a high insect-resistant identity to the larvae of leaf pests such as Clostera anachoreta Fabricius, Lymantria dispar Linnacus, Hyphantria cunea Drury ect., and the mean death rate of the grubs were all above the 85%, furthermore, the grubs' growth which survived could be restrained and the growth rate was reduced so that they couldn't tie cocoons as the usual.

项目简介：转双抗虫基因741杨是将部分改造BtCryIAc 基因与慈菇蛋白酶抑制剂基因，通过农杆菌介导法转化了优良白杨杂种741杨，并获得了一批具有高抗虫性无性系，对舞毒蛾和杨扇舟蛾，美国白蛾等鳞翅目幼虫死亡率达85%以上，并能抑制存活幼虫的发育，使其不能正常化蛹。

Our previous studies have shown that ubiquitous overexpression of HmgD caused hemocytes proliferation and the formation of melanotic tumors in the Drosophila larvae. To clarify the mechanism of melanotic tumors appearance,we also generated RT-PCR analysis to test the transcriptional changes of PPAE and Spn27A,which encode the key factors in the phenoloxidasecascade pathway from larvae samples of mid-third instar,late-third instar and prior to pupation relative to wild type flies.Our result showed that in the HmgD overexpression mid-third instar larvae,the expression level.of Spn27A was lower than wild type,otherwise the expression level of PPAE was higher than wild type.It suggests that overexpression of HmgD affects the PO cascade pathway.

本研究组前期工作发现，过量表达HmgD引起果蝇幼虫体内血细胞增生，并出现黑色素瘤，为探讨HmgD过量表达导致了血细胞增生即形成黑色素瘤的分子机制，本研究分别提取三龄中期、后期和相对于野生型化蛹前时刻的幼虫的RNA，首先检测了编码酚氧化酶级联反应途径中的两个关键基因PPAE，Spn27A在突变体中的转录发生变化，结果发现，Spn27A在三龄中期的表达量低于野生型，而PPAE的表达高于野生型，表明过量表达HmgD影响了酚氧化酶级联反应途径，低水平的Spn27A不足以抑制PPAE的活性，活化的PPAE催化了PPO的活性，使其转变成有活性的PO，从而促进黑色素的生成，使果蝇体内产生黑色素瘤。

Manypharmacological experiments have been conducted to determine the effects of adrenergic agonistand antagonist of catecholamine receptors on Meretrix meretrix metamorphosis.

药理学实验分别采用了几种儿茶酚胺类受体的激动剂和抑制剂来处理幼虫，检验它们在幼虫变态过程中的作用。

The caterpillar secretes chemicals that mimic those of ant larvae, so when a worker ant (either Myrmica sabuleti or Myrmica scabrinodis) comes across the caterpillar, it takes it back to its underground nest where the ant colony cares for the caterpillar as one of its own.

毛虫释放模仿蚁幼虫的化学物质，因此当一只路过的工蚁（要么沙氏红蚁，要么粗结红蚁）遇到毛虫时，它就将之带回地下巢穴中，蚁群就把毛虫当作自己的幼虫一样抚养。

However, the Cry1Ac-GFP fusion protein only accreted with peritrophic membrane of resistant strain and showed fluorescence, which suggested that the binding of peritrophic membrane with Cry1Ac toxin protein may result in resistance of larvae of H. armigera to Cry1Ac insecticidal crystal proteins.

比较Cry1Ac杀虫蛋白敏感和抗性棉铃虫幼虫中肠的发光部位，敏感棉铃虫幼虫的中肠围食膜已经消失，肠壁细胞发出强烈的荧光，而抗性棉铃虫的围食膜较健全并发出荧光。

It was shown that peroral infection of the larvae with mixture of GP37 and SpltMNPV could not obtained the significant difference from that only with virus. The GP37, however, was fed to the cotton leafworm larvae 30h in advance of virus infection, resulting in around 50% reduction in larvae mortality.

GP37抗体结合实验结果显示，用GP37抗体与病毒粒子结合后感染斜纹夜蛾幼虫，幼虫的死亡率与对照组没有显著差异，证实了GP37蛋白不是存在于病毒粒子外膜上的蛋白或者不是受体结合蛋白。

Larvas of P. litura and P. planifrons were fed with leaves sucked in purified fusion protein solution to observe the pesticidal activity. Group 1 and 2 were larvas of P.

融合蛋白经口途径分别饲喂购买及自采两种来源的斜纹夜蛾幼虫和采自荒弃及产果两种黄瓜地的瓜绢螟幼虫。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。