虱

An expression vector was constructed with a safe marker gene, 6-phosphomannose isomerase, and an insect-resistant gene, Galanthus nivalis agglutinin, was used in rice genetic transformation in the present study.

采用农杆菌介导法将来源于大肠杆菌的6-磷酸甘露糖异构酶安全选择标记基因和雪花莲凝集素抗虫基因构建于同一表达载体上进行遗传转化，获得带有安全标记基因的抗褐飞虱转基因植株。

Non-parametric Mann-Whitney U -test showed that there was no significant difference between male and female hosts on the species richness and abundance of total ectoparasites, chigger mites, sucking lice, fleas or gamasid mites.

U 检验表明，体表寄生虫、恙螨、吸虱、蚤类和革螨的数量和物种数在雌雄宿主体表间的差异无统计学意义。

Las multiplied again in the hemocoel and then invaded other host tissues, including hemocytes, nervous tissue, fat body, trachea, and muscle. Eventually, Las invaded the salivary gland and the Las-infected psyllids were enabled to transmit Las to other host plants. Symptoms of serious pathogenesis occurred in the muscle tissue.

黄龙病菌必需先穿过中肠上皮细胞并於中肠细胞内进行增殖，接著进入血腔继续进行增殖，并逐渐移行至其他组织包括血球、神经、脂肪体、气管上皮细胞及肌肉等，最后抵达唾腺，届时柑橘木虱即具有传播黄龙病的能力。

The result suggests that the plant was infected with geminivirus. Stem scions from the plant were graft-inoculated to I. purpurea. Three weeks later, the indicator developed symptoms of leaf curling and interveinal chlorosis. The geminivirus can be transmitted by whitefly.

实验表明该染毒材料嫁接到指示植物牵牛上三周后牵牛植株产生卷叶和叶片变黄的症状；病毒可由白粉虱传播，初步认定该病毒是菜豆金色花叶病毒属的甘薯卷叶病毒(sweet potato leaf curl virus，SPLCV)，将其命名为SPLCV-CN。

Leucopus and bites humans; principal vector for Lyme disease in eastern United States; northern form was for a time known as Ixodes dammini.

寄生在老鼠身上的扁虱，咬人；美国东部地区莱姆关节炎螺旋菌主要的携菌体；北方的虱子一度被认为是硬蜱。

Any of numerous small bloodsucking parasitic arachnids of the family Ixodidae, many of which transmit febrile diseases, such as Rocky Mountain spotted fever and Lyme disease.

虱类：蜱总科的多种小型吸血寄生蛛形动物，其中许多可以传播落基山脉斑疹热和莱姆氏病等热病

A study on the genus Lappula of China.

中国鹤虱属的研究。

A study on the genus Lappula of China.

标题 中国鹤虱属的研究。

Objective To investigate the chemical constituents of Lappula echinata and determine the antibacterial activity.

目的 对东北鹤虱的化学成分进行分离和结构鉴定并进行抗菌活性测定。

With LI-6400 portable photosynthetic system the net photosynthetic rates,transpiration rates and water use efficiencies of two ephemeral plants,Lappula semiglabra and Tetracrne quadricornis in the Desert Area of the Junggar Basin, were studied.

运用LI-6400便携式光合测定系统，研究了准噶尔盆地荒漠区2种典型短命植物——狭果鹤虱和四齿芥的净光合速率、蒸腾速率和水分利用效率特征。

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。

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