虱
- 与 虱 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Vaporariorum were generally 2~6℃lower than those in B. tabaci biotype B.
这与温室白粉虱低温耐受性强于B型烟粉虱,而B型烟粉虱有脚温室白粉虱耐高温胁迫的生态学现象相一致。
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According to pet fur features to a variety of imported raw materials, and add advanced international eliminate fleas ticks except prescription-Ivermectin, the effective elimination of various Ectoparasite prevent fleas ticks up to cause skin infections and eliminate fleas kill ticks excellent results.
灭蚤杀虱Eliminate fleas kill lice 根据宠物皮毛特点,选用多种进口原料,并添加国际先进的灭蚤除虱配方—伊维菌素,能有效灭除各种体外寄生虫,防止蚤虱引起皮肤感染,灭蚤杀虱效果极佳。
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For the first time, this study conducted a series of field sampling in multiple locations over several years and demonstrated that the B and Q biotypes first invade areas with high frequency of transport through human movement of plant materials, and then rapidly spread into surrounding areas and displace indigenous genotypes, and in parallel with displacement significant changes in sex ratio occurred in the mixed populations. Crossing experiments demonstrated that in the B. tabaci species complex there are many genetic groups that are completely or nearly completely isolated in reproduction. Apart from behavioural mechanisms, difference in host plant suitability and insecticide susceptibility between whitefly biotypes may also play important roles in the displacement of indigenous whiteflies by alien whiteflies in Zhejiang.
本研究首次以一个地理区域内广泛系统的野外调查数据证实,B型和Q型烟粉虱首先通过花卉苗木调运入侵交通较为发达的地区,然后迅速向周边扩张并取代土著烟粉虱,同时入侵取代过程伴随着混合种群中性比的变化;杂交试验证明烟粉虱复合种内存在多个生殖上隔离或基本隔离的遗传群;B型烟粉虱在浙江省内迅速取代土著烟粉虱,除行为机制外,生物型之间寄主适应性和药剂敏感性等方面的差异也可能在此过程中起着重要作用。
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In addition,the rapid development of resistance to chemical insecticide by psocids has also been reported.In China,the commonly occurred psocid species are Liposcelis bostrychophila,L.entomophila,L.decolor,and L.paeta.
在我国发生为害最为严重的种类有嗜卷书虱Liposcelis bostrychophila、嗜虫书虱L.entomophila、无色书虱L.decolor以及小眼书虱L.paeta等。
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Any of various jumping plant lice of the family Psyllidae, especially of the genus Psylla, which includes several species that infest fruit trees.
木虱一种木虱科植物跳虱,尤指属于跳虱属的木虱,有不少品种是侵害果树的
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Homology modeling of 3-D structure of two AChE from L.entomophila were constructed using H.sapiens(1p0i:A) native BuChE structure and Drosophila melanogaster(1d×4:A) native AChE structure as templates,respectively,by SWISS-MODEL.The catalytic triad were found and denoted in the 3-D structure of AChE from L. entomophila referring to T.californica.2.2 Gene cloning ofβ-actin and mRNA expression levels of two AChE genes from L. entomophilaBecause no reference gene has ever been used in Real Time PCR for L.entomophila in GeneBank,a fragment ofβ-actin gene was cloned from L.entomophila(GenBank Accession No.: FJ041117).It consists of 822 bp encoding a protein of 273 amino acids residues.
利用蛋白质结构同源建模工具,分别以人丁酰胆碱酯酶(1p0i:A)和果蝇乙酰胆碱酯酶(1d×4:A)的蛋白晶体结构为模板,对嗜虫书虱2个AChE的三维结构进行同源建模,并在三维结构中发现了AChE的酶解活性位点,证明嗜虫书虱体内也存在2个AChE基因。2.2嗜虫书虱β-actin基因克隆及乙酰胆碱酯酶基因mRNA表达水平研究目前关于嗜虫书虱的分子生物学研究较少,在GenBank中没有可用作内参基因的序列,因此本研究从嗜虫书虱体内克隆获得β—actin基因片段(GenBank登录号:FJ041117),该片段长度为822 bp,编码273个氨基酸残基,同源性比对分析表明该片段与其它昆虫的β—actin基因具有很高的同源性。
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By fitting the models of semivariogram of them and analyzing the patterns, it was found that the nugget range of macropterous SBPH and larval SBPH were approaching to that of spiders, as well as the range of structural intensity, but the nuggets of SBPH were not approaching to that of spiders, neither the structural intensity. The spatial pattern of larval SBPH and spiders were aggregation, but that of macropterous SBPH was random sometimes.
通过变差函数模型的拟合及空间格局的分析,得出灰飞虱长翅成虫、若虫与蜘蛛的变程范围相近,结构性强度的范围相近,但同一时间灰飞虱与蜘蛛的变程和结构性强度则均不尽相同;灰飞虱若虫与蜘蛛自始至终为聚集分布,但灰飞虱长翅成虫与蜘蛛的分布型则有差异,在某些时间为均匀分布。
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Continuous observations using the video recording system showed that in the three biotypes,the earliest copulation events occurred 2-6 h after emergence and 56-73%of females copulated at least once by 12 h after emergence.
3B型烟粉虱与ZHJ2型烟粉虱的生殖隔离程度与同型雌雄虫之间的交配次数和频率相比,B型烟粉虱和ZHJ2型烟粉虱之间的交配次数显著减少,交配频率显著下降。
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However,the number of events and frequency of copulation between the biotype B and ZHJ2 decreased significantly compared with those between females and males of a given biotype being placed in one arena, demonstrating a degree of pre-mating partial reproductive isolation between these two biotypes.Although some of the adults of the biotype B and ZHJ2 copulated with each other,mated females produced only male progeny,demonstrating a post-mating complete isolation in reproduction between the two biotypes in cases where copulation has happened.
4B型烟粉虱与ZHJ2型烟粉虱在棉花上的竞争取代过程当B型烟粉虱与ZHJ2型烟粉虱以3:20的比例在棉花上开始竞争,在未喷施吡虫啉乳油的情况下,B型经过6代完全取代了ZHJ2型,并伴随着B型雌虫比例的上升和ZHJ2型雌虫比例的下降;在喷施吡虫啉乳油的情况下,B型取代速度加快,经过5代完全取代了ZHJ2型,也伴随着B型雌虫比例的上升和ZHJ2型雌虫比例的下降;B型单一种群中,雌虫比例稳定在55%~60%;ZHJ2型单一种群中,雌虫比例稳定在50%左右。
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Psocids,belonging to Liposcelididae,Psocoptera,are worldwide and commonly found in various processed and unprocessed dry foods.Outbreaks of psocids could pose an alarming threat to stored product.Routine fumigations of warehouses and storage facilities with methyl bromide and PH_3 have failed to control these pests.
书虱属于虱啮目Psopotera、书虱科Liposcelididae、书虱属Liposcelis,是一类重要的储藏物害虫,大量发生时可造成严重的经济损失,而且对化学药剂的抗性发展很快,已经引起了全世界储藏物工作者的高度重视。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。