Endosymbiont
Mostrando 1-12 de 132 artigos, teses e dissertações.
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1. Wolbachia in guilds of Anastrepha fruit flies (Tephritidae) and parasitoid wasps (Braconidae)
Abstract The endosymbiont Wolbachia is efficiently transmitted from females to their progenies, but horizontal transmission between different taxa is also known to occur. Aiming to determine if horizontal transmission might have occurred between Anastrepha fruit flies and associated braconid wasps, infection by Wolbachia was screened by amplification of a fr
Genet. Mol. Biol.. Publicado em: 19/09/2016
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2. Gross morphology and ultrastructure of the female reproductive system of Diaphorina citri (Hemiptera: Liviidae)
The morphological traits of the female reproductive system of Diaphorina citri were examined in detail. Diaphorina citri has telotrophic ovaries with ovarioles organized as a "bouquet", displaying a rudimentary terminal filament and a syncytial tropharium. The vitellarium carries a single growing oocyte at each maturation cycle, which is connected with the t
Zoologia (Curitiba). Publicado em: 2014-04
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3. High prevalence and lack of diversity of Wolbachia pipientis in Aedes albopictus populations from Northeast Brazil
The use of Wolbachia as a tool to control insect vectors has recently been suggested. In this context, studies on the prevalence and diversity of this bacterium in wild populations are relevant. Here, we evaluated the diversity of two Wolbachiagenes (ftsZ and wsp) and the prevalence of this endosymbiont in wild Aedes albopictus. Using semi-nested polymerase
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-09
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4. Variations in the sensitivity of different primers for detecting Wolbachia in Anastrepha (diptera: tephritidae)
Wolbachia are endosymbiont bacteria of the family Rickettsiacea that are widespread in invertebrates and occur between 20% and 60% of Neotropical insects. These bacteria are responsible for reproductive phenomena such as cytoplasmic incompatibility, male killing, feminization and parthenogenesis. Supergroups A and B of Wolbachia are common in insects and can
Brazilian Journal of Microbiology. Publicado em: 2011-06
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5. Assessing key safety concerns of a Wolbachia-based strategy to control dengue transmission by Aedes mosquitoes
Mosquito-borne diseases such as dengue fever, chikungunya or malaria affect millions of people each year and control solutions are urgently needed. An international research program is currently being developed that relies on the introduction of the bacterial endosymbiont Wolbachia pipientis into Aedes aegypti to control dengue transmission. In order to prep
Memórias do Instituto Oswaldo Cruz. Publicado em: 2010-12
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6. Diversidade genética de bactérias de rizosfera de tabaco produtoras de sideróforos
A diversidade genética de bactérias de rizosfera de tabaco produtoras de sideróforos foi estudada por meio da técnica de análise de restrição do DNA ribossomal amplificado (ARDRA), homologia de seqüência de 16s rRNA e métodos de análise filogenética. Observou-se que 85% do total de 354 isolados produziram sideróforos em meio liquido com restriç
Brazilian Journal of Microbiology. Publicado em: 2009-06
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7. Wolbachia e incompatibilidade citoplasmática em Anastrepha sp. 1 aff. fraterculus e A. obliqua (Diptera: Tephritidae) / Wolbachia and cytoplasmic incompatibility into Anastrepha sp.1 aff. fraterculus and Anastrepha obliqua. (Diptera: Tephritidae)
The endosymbiont bacteria Wolbachia are vertically transmitted by the females to its progenies, although horizontal transmission between distinct taxa is also known. One of the most relevant effects caused by these bacteria in the reproductive behavior of its hosts is the cytoplasmic incompatibility (CI). Wolbachia was described in several groups of arthropo
Publicado em: 2009
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8. Wolbachia in two populations of Melittobia digitata Dahms (Hymenoptera: Eulophidae)
We investigated two populations of Melittobia digitata Dahms, a gregarious parasitoid (primarily upon a wide range of solitary bees, wasps, and flies), in search of Wolbachia infection. The first population, from Xalapa, Mexico, was originally collected from and reared on Mexican fruit fly pupae, Anastrepha ludens Loew (Diptera: Tephritidae); the other, from
Neotropical Entomology. Publicado em: 2008-12
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9. Endossimbionte Wolbachia em moscas-das-frutas do gênero Anastrepha (Tephritidae) e em vespas parasitóides (Braconidae) associadas / Endosymbiont Wolbachia in fruit flies (Tephritidae) and in associated parasitoid wasps (Braconidae)
Amostras, de oito espécies de moscas-das-frutas do gênero Anastrepha e de seis espécies de vespas (Braconidae) parasitóides à elas associadas, coletadas em diferentes localidades do Brasil, foram estudadas para uma detecção e caracterização das linhagens da bactéria endossimbionte Wolbachia. A detecção e identificação de Wolbachia foram feitas
Publicado em: 2007
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10. Caracterização genômica da bactéria endossimbiótica do tripanosomatídeo Crithidia deanei e de suas DNA topoisomerases / Genomics characterization of the endosymbiont bacterium of the tripanosomatídeo Crithidia deanei and of its DNA topoisomerases
The present work is focused in the endosymbiont type II topoisomerases, due to their essential roles not only in the replication and transcription processes but also at the recombination and chromosome segregation processes. There are two Type II topoisomerases in bacteria: DNA gyrase and DNA Topoisomerase IV. DNA gyrase is the only topoisomerase capable of
Publicado em: 2006
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11. In situ localization and molecular characterization of Pleurotus ostreatus endosymbiont bacteria / Localização in situ e caracterização molecular da bactéria endossimbionte de Pleurotus ostreatus
The fungus Pleurotus ostreatus, which belongs to white rot basidiomycete group, is a widely cultivated mushroom; this species has high productivity and rusticity, besides its use in biobleaching and bioremediation processes. This biotechnological potential justifies microbial interaction studies between this fungi and others microorganisms. In P. ostreatus m
Publicado em: 2006
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12. Presence of Wolbachia endosymbionts in microfilariae of Wuchereria bancrofti (Spirurida: Onchocercidae) from different geographical regions in India
In view of the recent discovery of rickettsial endosymbionts, Wolbachia in lymphatic filarial parasites, Wuchereria bancrofti and Brugia malayi and subsequently of their vital role in the survival and development of the latter, antibiotics such as tetracycline are being suggested for the treatment of lymphatic filariasis, by way of eliminating the endosymbio
Memórias do Instituto Oswaldo Cruz. Publicado em: 2003-12