Pseudolynchia canariensis

Canariensis 假喉虫
  • 文章类型: Journal Article
    Lipoptenacervi(Linnaeus),利波特纳fortisetosaMaa,马匹林奈,和Pseudolynchiacanariensis(Macquart)是嗜血的体外寄生虫,会感染不同的动物物种,偶尔会咬人。宿主是通过复杂的过程定位的,该过程涉及主要由触角上的特定感觉结构感知的不同种类的刺激。是必不可少的嗅觉器官。一般触角形态,连同感官的分布和超微结构,已经用扫描和透射电子显微镜方法进行了详细的研究。观察结果表明,在四个研究的海马中,有一些共同的特征:(a)鞭毛在其他两个部分内的典型隐藏;(b)鞭毛的特征性小梁表面;(c)特殊的外部微毛虫;(d)在鞭毛上存在碱性敏感和槽状钉的鞭毛;(e)无关节。fortisetosa的超微结构显示微毛囊和鞭毛网状角质层没有神经支配。已经为所描述的触角结构假设了不同的角色。微trichia和网状角质层可以将挥发性化合物传递到鞭毛感觉区域。特殊的感觉神经元表征了能够检测温度变化的无关节ARISTA。Coeloconicsensilla可能参与热接收,潮湿的接收,远距离接收二氧化碳,而孔性差的碱性感官可能在中短距离的宿主气味感知中发挥作用。
    Lipoptena cervi (Linnaeus), Lipoptena fortisetosa Maa, Hippobosca equina Linnaeus, and Pseudolynchia canariensis (Macquart) are hematophagous ectoparasites that infest different animal species and occasionally bite humans. Hosts are located by a complex process involving different kinds of stimuli perceived mainly by specific sensory structures on the antennae, which are the essential olfactory organs. General antennal morphology, together with distribution and ultrastructure of sensilla, have been studied in detail with scanning and transmission electron microscopy approaches. Observations have revealed some common features among the four studied hippoboscids: (a) typical concealment of the flagellum inside the other two segments; (b) characteristic trabecular surface of the flagellum; (c) peculiar external microtrichia; (d) presence on the flagellum of basiconic sensilla and grooved peg coeloconic sensilla; (e) unarticulated arista. The ultrastructure of L. fortisetosa revealed that microtrichia and the flagellar reticulated cuticle are not innervated. Different roles have been hypothesized for the described antennal structures. Microtrichia and the reticulated cuticle could convey volatile compounds towards the flagellar sensory area. Peculiar sensory neurons characterize the unarticulated arista which could be able to detect temperature variations. Coeloconic sensilla could be involved in thermoreception, hygroreception, and carbon dioxide reception at long distances, while the poorly porous basiconic sensilla could play a role in the host odour perception at medium-short distances.
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  • 文章类型: Journal Article
    本研究旨在评估壳聚糖-银纳米复合材料在用加拿大假虫(P。canariensis),并评估治疗前后的不同免疫学参数。因此,将14只鸟分为2组;第1组(感染组,包括12只鸟)细分为6个亚组,每组2只鸽子,其中五组用壳聚糖-银纳米复合材料处理,第6亚组用溴氰菊酯处理,包括两只鸽子在内的第2组作为对照阴性鸽子。在受感染的群中,加拿大疟原虫蝇分布在翅膀下和/或尾巴下,这些鸽子的RBC和WBC明显低于未受感染的鸽子。研究了细胞介导的针对实验感染了小牛的鸽子的免疫反应。鸽子中的加拿大链球菌感染对鸽子的血液参数有负面影响,增加TNF-α和IL-1β细胞因子水平。这项研究清除了小牛在诱导氧化应激的情况下的作用,该情况由高水平的一氧化氮和丙二醛(MDA)和低抗氧化能力表明,在实验性感染的鸽子的血清中锌浓度降低。壳聚糖-银纳米复合材料在消除鸽子中的小牛感染方面具有很好的效果。
    This study aimed to evaluate the efficacy of chitosan-silver nanocomposites in the treatment of experimentally infested pigeons with Pseudolynchia canariensis (P. canariensis) with evaluation of different immunological parameters before and after treatment. Therefore, fourteen birds were divided into 2 groups; group1(infested group including 12 birds) which subdivided into 6 sub-groups experimentally infested pigeons 2 pigeons each, and five group of them were treated with chitosan-silver nanocomposites and sub-group number 6 was treated with deltamethrin while, group 2 including two pigeons were kept as control negative ones. P. canariensis flies distributed under the wing and /or under the tail in infested group and these pigeons showed significantly lower RBCs and higher WBCs than that in non-infested pigeons. The cell mediated immune response against experimentally infested pigeons with P. canariensis was studied. P. canariensis infestation in pigeons have a negative impact on pigeon\'s blood parameters, increase TNF-α and IL-1β cytokines levels. This study cleared out the role of P. canariensis in the induction of a case of oxidative stress indicated by high level of nitric oxide and malondialdehyde (MDA) with low antioxidant capacity in shape of reduced zinc concentration in the sera of experimentally infested pigeon. Chitosan-silver nanocomposite has a promising effect in the elimination of P. canariensis infestation in pigeons.
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  • 文章类型: Journal Article
    Phoresy是一种生物机械现象,其中固定的生物体挂靠在另一个移动的生物体上以移位。这种行为在田间水平上没有得到很好的研究,尤其是在感染同一宿主的两种重要寄生虫之间。寄生虫/寄生虫相互作用很少通过大多数生物宿主-寄生虫系统进行研究。这里,我们评估了寄生咀嚼虱与石鸽上的海马蝇(Pseudolynchiacanariensis)之间的电泳关系。共有69只迷住的石鸽,ColumbaLivia,在吉萨动物园和开罗附近的两个当地农场检查了寄生的嚼虱和河马蝇,埃及。结果表明,海马果蝇的侵染与咀嚼虱呈正相关。此外,使用ANOVA对虱子/虱子相互作用的分析表明,在两种物种相对较高的岩鸽上记录的三种咀嚼虱子物种之间存在显着差异,ColumbicolacolumbaeandCampanulotescompar.对海马果蝇的丰度及其与咀嚼虱子侵染的关系的分析表明,在果蝇高度侵染的情况下,虱子强度显着增加。巢穴的卫生水平可能与寄生虫感染水平成反比。这项工作在使用两种在自然界中具有特征性电泳行为的寄生物种来理解寄生虫/寄生虫和宿主/寄生虫相互作用的过程中迈出了一步。
    Phoresy is a biologically mechanical phenomena where an immobile organism hitches on a other mobile organism to translocate. This behaviour is not studied very well on the field level especially between two important parasites infesting the same host. Parasite/parasite interaction is rarely studied through most biological host-parasite systems. Here, we evaluated the phoretic relation between parasitic chewing lice and hippoboscid flies (Pseudolynchia canariensis) on rock pigeons. A total of 69 captivated rock pigeons, Columba livia, were examined for the parasitic chewing lice and hippoboscid flies in Giza Zoo and two local farms near Cairo, Egypt. Results indicated that there is a positive correlation between infestation of hippoboscid flies and chewing lice. Also, the analysis of louse/louse interaction using ANOVA indicated a significant difference between the three chewing louse species which were recorded on the rock pigeons with relatively high abundance of two species, Columbicola columbae and Campanulotes compar. The analysis of hippoboscid flies\' abundance and its relation with chewing lice infestation indicate a significant increase of lice intensity in case of high infestation with the fly. The level of hygiene of nest may be inversely related to level of parasite infestation. This work forms a step in the process of understanding parasite/parasite and host/parasite interactions using two parasitic species with a characteristic phoretic behaviour in nature.
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  • 文章类型: Journal Article
    Host range and parasite specificity determine key epidemiological, ecological and evolutionary aspects of host-parasite interactions. Parasites are usually classified as generalists or specialists based on the number of hosts they feed on. Yet, the requirements of the various stages of a parasite may influence the suitability of a given host species. Here, we investigate the generalist nature of three common ectoparasites (the dipteran Carnus hemapterus and two species of louse flies, Pseudolynchia canariensis and Ornithophila metallica), exploiting two avian host species (the European roller Coracias garrulus and the Rock pigeon Columba livia), that frequently occupy the same breeding sites. We explore the prevalence and abundance of both the infective and the puparial stages of the ectoparasites in both host species. Strong preferences of Pseudolynchia canariensis for pigeons and of Carnus hemapterus for rollers were found. Moderate prevalence of Ornithophila metallica was found in rollers but this louse fly avoided pigeons. In some cases, the infestation patterns observed for imagoes and puparia were consistent whereas in other cases host preferences inferred from imagoes differed from the ones suggested by puparia. We propose that the adult stages of these ectoparasites are more specialist than reported and that the requirements of non-infective stages can restrict the effective host range of some parasites.
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  • 文章类型: Journal Article
    Microscopic examination of thin blood smear of a domestic pigeon brought to Teaching Veterinary Clinical Complex, Junagadh, Gujarat revealed mature and immature halter shaped gametocytes of Haemoproteus columbae encircling the nucleated erythrocytes. The disease was diagnosed as acute infection of pigeon malaria more notably known as pseudomalaria. The parasitic infection was further confirmed by polymerase chain reaction assay targeting the Cytochrome b (cyt b) gene fragment amplifying 207 base pair (bp) fragment. Pseudolynchia canariensis, the vector for H. columbae was also recovered from underneath the feathers of the affected pigeon.
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    文章类型: Case Reports
    背景:鸽子(Columbalivia)在包括伊朗在内的几个国家已被当作宠物饲养和饲养。外寄生虫被认为是生长迟缓的基本原因,降低了鸟类的活力和恶劣的条件。加拿大假喉虫是鸽子的重要外寄生虫之一,与致病性原生动物嗜血杆菌一样,是病原体向鸟类和人类传播的原因。
    方法:一群家鸽在Shahrekord中包含50只鸽子,对伊朗西南部的外寄生虫进行了临床评估。去除外寄生虫。收集样本,然后转到沙雷科德大学寄生虫学实验室,Shahrekord,伊朗。
    结果:使用双翅目蝇的诊断密钥,这些苍蝇被发现。这是在伊朗很少见的有关加拿大猪群感染鸽子的报道。侵染率为40%,风笛的侵染率高于女性,女性高于男性。
    结论:风笛的出没率高于成人,这可能是风笛去除体外寄生虫的潜力较小的原因。
    BACKGROUND: Pigeons (Columba livia) have been kept as pet and reared for food in several countries including Iran. Ectoparasites are regarded as the basic causes of retardation in growth, lowered vitality and poor conditions of the birds. Pseudolynchia canariensis a hippoboscidae fly is one of the important ectoparasites of pigeons and is responsible for the transmission of pathogens to birds and humans same as pathogenic protozoan Haemoproteus columbae.
    METHODS: A herd of domestic pigeons contained 50 pigeons in Shahrekord, southwest Iran was evaluated clinically infested by ectoparasites. Ectoparasites were removed. The samples were collected and then referred to the Laboratory of Parasitology of Shahrekord University, Shahrekord, Iran.
    RESULTS: Usin diagnostic key for diptera fly, these flies were find P. canariensis. This is a rare report of infestation of pigeons herd by P. canariensis in Iran. The infestation rate was 40% that rate of infestation in pipers was more than females and in females was more than males.
    CONCLUSIONS: The rate of infested pipers was more than adults that maybe the less potential of pipers in removing of ectoparasites is reason of this higher rate.
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  • 文章类型: Journal Article
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