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Showing 1 to 20 of 34 for “"Wolbachia"”.
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Effects of Wolbachia Bacteria on Several Insect Species
… Gryllus tested were found to be infected with Wolbachia. Gryllus rubens was found to be infected with a strain different from that found in G. integer and G. pennsylvanicus. However, specimens from the Davis, CA and Las Cruces, NM populations of G. integer were infected with both rubens- and …
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The Geographic Mosaic of Wolbachia Infection in Melanitis leda Butterfly Populations
… species are infected with the endosymbiont <em>Wolbachia</em>. This bacterium can manipulate the reproduction of its host and potentially affect host evolution. Most surveys investigating patterns of <em>Wolbachia </em>infection in nature sample limited numbers of individuals; population-level …
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Biogeography and biosystematics of plum curculio, Conotrachelus nenuphar (Herbst)/Wolbachia interactions
… distribution analysis of plum curculio and Wolbachia symbiont. One marker is the partial mitochondrial cytochrome oxidase gene subunit I (mtCOI) of plum curculio. Another marker is the Wolbachia Surface Protein (wsp) gene of Wolbachia associated with plum curculio. First, the reproductive …
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Wolbachia colonization in drosophila midguts and its effects on intestinal stem cells
Wolbachia is a vertically transmitted, obligate intracellular bacterium infecting ~40% of all known species of arthropods, as well as filarial nematodes. The nature of Wolbachia-host interactions ranges from reproductive parasitism to increased fecundity and pathogen protection. Wolbachia reduces …
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Exploring the Role of Wolbachia Endobacteria in the Biology of Filarial Nematode Parasites
… Many filarial species require <italic>Wolbachia</italic> endobacteria: family: Rickettsiaceae) to carry out their life cycle. Studies using antibiotics to target the endobacteria, thereby interfering with worm fertility and viability, have generated interest in using …
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The Prevalence and Effect of Wolbachia Infection on the Brown Widow Spider (Latrodectus Geometricus)
<p><em>Wolbachia</em> was recently identified in the Brown Widow Spider (<em>Latrodectus geometricus</em>). This symbiont has not previously been found in this genus, therefore the consequences on the host’s population dynamics are unknown. The frequency of endosymbiont infection can provide …
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Cytological and biochemical analyses of Wolbachia pipienitis, causative reagent of cytoplasmic incompatibility in Drosophila simulans
… to an intracellular microorganism called Wolbachia pipientis. The expression of CI results when males infected with the symbionts are crossed with uninfected females; whereas reciprocal crosses between infected females and uninfected males are compatible, as well as crosses between flies …
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Detection and Prevalence of <em>Wolbachia</em> within the Tick <em>Ambyomma americanum</em> and Fleas (Siphonaptera) in Southeast Georgia
<p><em>Wolbachia</em> spp. are intracellular endosymbionts that have been reported from many arthropods and nematodes. However, there is little known of Wolbachia from either ticks or fleas. This is the first report of <em>Wolbachia</em> within the lone star tick, <em>Amblyomma</em> …
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Super-Organismal Effects Of A Widespread Insect Endosymbiotic Bacteria
… on the biology of social insects such as ants. Wolbachia, a maternally-inherited endosymbiont, is the most widespread insect endosymbiont. It manipulates host reproduction and confers fitness benefits to the host to favor its own vertical transmission. While Wolbachia is known to manipulate the …
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Cytoplasmic incompatibility in Drosophila: Biochemical and cellular analysis of factors influencing its expression
Wolbachia, an endocellular bacterium closely associated with cytoplasmic incompatibility in insects (CI), was purified from infected eggs and microinjected into two strains of D. melanogaster, a highly inbred laboratory strain (Oregon R), and a recently caught wild-type strain from Arizona. …
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Diversity and role of bacterial endosymbionts infecting the cassava whitefly, Bemisia tabaci (Gennadius) in Sub-Saharan Africa
… endosymbiotic bacteria with varied prevalence. Wolbachia was the most predominant symbiont with infection levels varying from 21 to 97%. Arsenophonus varied from 17 to 64% and that of Rickettsia was 0 to 53%. Sequence analysis of the bacteria revealed high genetic diversity. Several strains of …
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Mathematical modeling of infectious diseases
… to describe the dynamics of wild mosquitoes when Wolbachia-infected female and male mosquitoes are introduced in the wild as a biological control, where we assume imperfect maternal transmission of Wolbachia to offspring and incomplete cytoplasmic incompatibility. In order to reduce the population …
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The evolution and genetics of vector competence in mosquito disease vectors
… and a minor factor in between-species variation. Wolbachia endosymbionts are able to reduce the intensity and development of RNA viruses and metazoan parasites in their insect hosts, blocking the transmission of such parasites. This makes Wolbachia a likely candidate for control programmes. I …
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Biochemical Separation of Geographical Strains of Plum Curculio, Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), and Evaluation of Olfactory Attractants in Virginia Orchards
… Gene targeted PCR revealed the presence of Wolbachia in both populations. Analysis of the wsp gene sequence showed the univoltine population of plum curculio is associated with a strain of Wolbachia in supergroup B, most closely related to a strain identified from Perithemis tenera (Say) …
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Biochemical, molecular and microscopic studies on mosquitoes with special emphasis on Wolbachia infections, diagnostic assessment of Dengue viruses and biological control of Dengue vectors
… and electron microscopic identification of Wolbachia sp. in populations of the Culex Pipiens Complex from the Upper Rhine Valley, germany and Cebu City, Philippines; 4) assessment of dengue viruses by IgG-Capture Enzyme-Linked Immunosorbent assay (ELISA) of serum samples from Filipino …
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Reproduction and development of the black vine weevil (Coleoptera: Curculionidae) in relation to environmental factors
… and lowered egg viability. Endosymbiont bacteria Wolbachia infect many arthropod species and they may alter the reproduction of their hosts. I first documented that Wolbachia is highly prevalent in O. sulcatus populations in the United States. Given that two antibiotics (tetracycline and …
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Γενετική ανάλυση της αναπαραγωγικής απομώνωσης σε τεχνητούς πληθυσμούς της Drosophila melanogaster
… Τέλος ερευνήθηκε η επίδραση του ενδοπαρασίτου Wolbachia με εξέταση συγκεκριμένων τύπων διασταυρώσεων όπως: α) μολυσμένου x μη μολυσμένου, μελετώντας την φυλετική απομόνωση, σε διάφορες χρονικές στιγμές καθώς και στους συνδυασμούς β) μολυσμένο x μολυσμένο και γ) μη μολυσμένο x μη μολυσμένο. …
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Characterizing the early stages of a novel host shift using host fitness and metabolomics
… response to a novel pathogenic infection. As Wolbachia can interfere with RNA virus infection success, a new method was developed to reliably and quickly eliminate Wolbachia from the flies. Once the flied were confirmed to be Wolbachia-free, they were injected with DCV. Females of the native …
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Molecular analysis of migratory plant-parasitic nematodes with a focus on plant cell wall modifying enzymes
… with significant similarity to sequences from a Wolbachia endosymbiotic bacterium. This finding was further investigated and the presence of an intracellular Wolbachia bacterium in the nematode was demonstrated. Although this bacterium is often found in filarial nematodes, it is the first time it …
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