寄主

Bean rust caused by Uromyces appendiculatus and cowpea rust caused by U. vignea are important diseases of these corps in the world. Identification of these two Uromyces species has always been difficult in the past due to confusion in morphological feature and host range of the pathogens.

菜豆锈病菌与豇豆锈病菌所引起的豆科锈病为世界性重要病害，然过去由於此种锈菌之形态学与寄主范围的混淆不清，因而增加此两种锈病菌在鉴定上的困难。

Five apple cultivars were individually inoculated with 18 representative single spore isolates of Venturia inaequalis collected from main apple grown areas in Shaanxi province.

选用陕西省18个有代表性的苹果黑星病菌菌株分别接种秦冠、富士、嘎啦、红星和乔纳金等5个寄主品种进行致病力测定。

Shrubs, usually aerial hemiparasites on other seed plants, often spreading along host by runners, more rarely terrestrial root-parasitic shrubs or trees, nodes not articulated, glabrous or hairy, hairs often stellate or verticillate. Leaves opposite or alternate, stipules absent; petiole often indistinct; leaf blade simple, usually pinnately veined, margin entire.

灌木，通常半寄生在其它种子植物的树上，通过匍匐茎在寄主身上延伸，很少为根寄生的地生灌木或乔木，节没有关节，无毛或有毛，通常为星状毛或具毛轮，对生叶或交替，托叶无；叶柄不明显；单叶，通常羽状脉，边缘全缘。

Inoculating test plants through vector,observing symptom and using universal primers(R16mF2/R16mR1)for phytoplasma 16S rDNA were conducted.1.4 kb DNA fragments were amplified by polymerase chain reactionin DNA samples extracted from inoculated wheat and viruliferous Psammotettix striatus L.respectively.

采用介体接种植物，症状观察和应用植原体16S rDNA基因通用引物对R16mF2/R16mR1进行PCR扩增，在接种小麦和传毒介体中均扩增出1.4kb的特异片段，鉴定出小麦蓝矮植原体新寄主7种。

It was conclude that wind and weevils were effective pollination vectors for C. elongata, which inconsistent that Zamiaceae was host-specific insect pollination.

可见，风媒和虫媒都是越南篦齿苏铁的有效传粉途径，与泽米铁类植物为专一寄主性昆虫传粉的结论不一致。

This deprives the pathogen of its hosts and stops the infection in its tracks.

这就剥夺了病原的寄主，并阻断了感染的进程。

The study reports the involvement of type 3 fimbriae, which has been shown as the primary adhesion factor in Klebsiella pneumoniae, in the bacterial pathogenesis.

已知，第三型纤毛的表现与克雷白氏肺炎杆菌感染寄主细胞的部位密切相关。

Normally , the treatment flushes the parasite out of the body in 24 hours.

正常情况下，疗效应该是在24小时内将疟原虫寄主从体内清除。

Additionally, one SsDRV-free strain Ep-1PNA183av that showed hypovirulence was isolated from a mutant of healthy strain Ep-1PNA183, this strain also immunizes the infection of SsDRV, it would be a valuable material to study on the interaction between SsDRV and its host. Surprisingly, we discovered that SsDRV could be transmitted into S. nivalis (in the same genus to S. sclerotiorum) when cultured side by side on PDA plate, this discovery may supply new evidence for the exchange of genetical elements among different species in fungi; the transmission of mycovirus to other species showed that the limitation of vegetative imcompatiblity among different strains might not be key factor to determine the efficiency of biological control with hypovirulence associated mycovirus.

发现了1株不携带SsDRV的核盘菌弱毒力菌株，该菌株对SsDRV具有显著抗性，是研究SsDRV与寄主互作的宝贵材料；还发现SsDRV可以在核盘菌种间传递，深入研究将为生物在种间的遗传物质交换提供了新的证据，也将为广泛利用弱毒相关病毒控制植物病害提供理论依据。

Smerinthus planus Walker has 2 generations every year in Xining, their pupa overwintered in the soil of 5~10 cm depth.

蓝目天蛾在西宁地区每年发生2代，以蛹在寄主植物附近5~10cm深的土层中作土室越冬。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。