نتایج جستجو برای: Wolbachia
تعداد نتایج: 2901 فیلتر نتایج به سال:
Wolbachia is an obligatory, intracellular α-proteobacterium which infect the reproductive and somatic tissues of some arthropod and nematode populations. Because there are not any available data on the presence of this bacterium in Iran, the present study was done to determine the presence of this bacterium among 30 species of arthropods and nematodes. After DNA extraction from samples, we scre...
background: wolbachia are common intracellular bacteria that infect different groups of arthropods including mosquitoes. these bacteria modify host biology and may induce feminization, parthenogenesis, male killing and cytoplasmic incompatibility (ci). recently wolbachia is being nominated as a bio-agent and paratransgenic candidate to control mosquito borne diseases. methods: here we repor...
باکتریهای (α-proteobacteria) Wolbachia همزیستهای درون سلولی هستند که در بافتهای تناسلی تعدادی از بندپایان یافت میشوند. القاء بکرمادهزایی در زنبورهای تریکوگراما اغلب توسط این باکتری که از طریق سیتوپلاسم تخم منتقل میشود، صورت میگیرد. در این تحقیق، آلودگی به باکتری Wolbachia در 5/49، 6/3 و 5/2 درصد از افراد جمعیتهای طبیعی زنبور Trichogramma brassicae Bezdenko که بهترتیب از بابلسر، چمستا...
Laboratory experiments as well some field essays have revealed that the intracellular bacterium Wolbachia, deliberately introduced in Aedes spp female mosquitoes, drastically reduces their vector competence for dengue virus and, also, other mosquito-borne viral diseases. However, mosquitoes infected with Wolbachia still need to ingest human blood while male either wild or Wolbachia-carrying, do...
BACKGROUND The bacterial endosymbiont Wolbachia pipientis has been shown to increase host resistance to viral infection in native Drosophila hosts and in the normally Wolbachia-free heterologous host Aedes aegypti when infected by Wolbachia from Drosophila melanogaster or Aedes albopictus. Wolbachia infection has not yet been demonstrated to increase viral resistance in a native Wolbachia-mosqu...
Wolbachia is an alpha-proteobacterial symbiont widely distributed in arthropods. Since the identification of Wolbachia in certain animal-parasitic nematodes (the Onchocercidae or filariae), the relationship between arthropod and nematode Wolbachia has attracted great interest. The obligate symbiosis in filariae, which renders infected species susceptible to antibiotic chemotherapy, was held to ...
Pathogen replication and transmission in Wolbachia infected insects are currently studied using three Wolbachia infection systems: naturally infected Wolbachia hosts, hosts transinfected with Wolbachia (stably maintained and inherited infections) and hosts transiently infected with Wolbachia. All three systems have been used to test the effect of Wolbachia on mosquito transmitted pathogens such...
The Aedes albopictus mosquito has been involved as the principal vector of recent major outbreaks due to the chikungunya virus (CHIKV). The species is naturally infected by two strains of Wolbachia (wAlbA and wAlbB). Wolbachia infections are thought to have spread by manipulating the reproduction of their hosts; cytoplasmic incompatibility is the mechanism used by Wolbachia to invade natural po...
Cytoplasmic incompatibility (CI) in Drosophila is related to the presence of Wolbachia, an intracellular microorganism found in many species of insects. In order to study the intracellular localization of Wolbachia in eggs and embryos, we have purified the bacteria from fly embryos and subsequently generated a monoclonal antibody (Mab Wol-1) specific for Wolbachia. Indirect immunofluorescence s...
Wolbachia is the most prevalent symbiont described in arthropods to date. Wolbachia can manipulate host reproduction, provide nutrition to insect hosts and protect insect hosts from pathogenic viruses. So far, 13 supergroups of Wolbachia have been identified. The whitefly Bemisia tabaci is a complex containing more than 28 morphologically indistinguishable cryptic species. Some cryptic species ...
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