Results 141 to 150 of about 3,840 (180)
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Journal of Morphology, 1994
AbstractBy scanning electron microscopy, sensilla type and distribution were studied on the antennae of ten species of Rhodnius. No sexual dimorphism was apparent. Intraspecific differences in sensillar pattern were shown to be potentially useful in species determination and to agree with results from biochemical studies and previous morphometric ...
Silvia, Catalá, Christopher, Schofield
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AbstractBy scanning electron microscopy, sensilla type and distribution were studied on the antennae of ten species of Rhodnius. No sexual dimorphism was apparent. Intraspecific differences in sensillar pattern were shown to be potentially useful in species determination and to agree with results from biochemical studies and previous morphometric ...
Silvia, Catalá, Christopher, Schofield
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Insect Biochemistry and Molecular Biology, 2002
The participation of eicosanoids and second messengers on the regulation of RHBP endocytosis by the ovaries was investigated, using [(125)I]RHBP in experiments in vivo and in vitro. Addition of PGE(2) (one of the products of the cyclooxygenase pathway) decreased in vitro the uptake of RHBP by 35%.
Marcelo N, Medeiros +7 more
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The participation of eicosanoids and second messengers on the regulation of RHBP endocytosis by the ovaries was investigated, using [(125)I]RHBP in experiments in vivo and in vitro. Addition of PGE(2) (one of the products of the cyclooxygenase pathway) decreased in vitro the uptake of RHBP by 35%.
Marcelo N, Medeiros +7 more
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THE HEMOCYTES OF RHODNIUS PROLIXUS STÅL
The Biological Bulletin, 19651. The hemocytes of Rhodnius prolixus have been studied with phase contrast microscopy, after supravital staining, and in fixed and stained smears.2. With phase contrast microscopy, the following categories of circulating cells can be readily identified: (a) non-dividing and mitotically-dividing prohemocytes, (b) non-vacuolated and vacuolated ...
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Chitin is a component of the Rhodnius prolixus midgut
Insect Biochemistry and Molecular Biology, 2016Chitin is an essential component of the peritrophic matrix (PM), which is a structure that lines the insect's gut and protects against mechanical damage and pathogens. Rhodnius prolixus (Hemiptera: Reduviidae) does not have a PM, but it has an analogous structure, the perimicrovillar membrane (PMM); chitin has not been described in this structure. Here,
Evelyn S L, Alvarenga +9 more
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Mechanism of Insecticide-induced Diuresis in Rhodnius
Nature, 1971WATER conservation is critical for insects because of their large surface area relative to volume and the generally arid environment in which they live. Their survival depends on the waterproofing mechanism of the cuticle and the control of excretory and respiratory mechanisms which lead to water loss.
S H, Maddrell, J E, Casida
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Parasitology International
Rhodnius species are potential vectors of the etiological agent of Chagas disease (CD), the protozoan Trypanosoma cruzi. CD impacts around seven million people in Latin America, resulting in approximately fourteen thousand deaths per year. Several species of Rhodnius are notable not only for their epidemiological relevance, but also for the challenging
Allan Pitta, Seabra +2 more
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Rhodnius species are potential vectors of the etiological agent of Chagas disease (CD), the protozoan Trypanosoma cruzi. CD impacts around seven million people in Latin America, resulting in approximately fourteen thousand deaths per year. Several species of Rhodnius are notable not only for their epidemiological relevance, but also for the challenging
Allan Pitta, Seabra +2 more
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Uric acid synthesis in Rhodnius prolixus
Journal of Insect Physiology, 1970Glycine-1-14C, glycine-2-14C, and sodium formate-14C were used to investigate the origin of the carbon atoms of uric acid in Rhodnius prolixus. As in other uricotelic organisms, the carboxyl carbon of glycine is incorporated into position 4 of uric acid, the alpha carbon of glycine goes to position 5, and the carbon of sodium formate is incorporated ...
F M, Barrett, W G, Friend
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Acta Tropica, 1998
Rhodnius prolixus interpopulation variability was studied based on a new approach using salivary heme proteins (nitrophorins) electrophoresis in starch gel. We compared salivary proteins profiles of R. prolixus from three different laboratory colonies from Honduras, Venezuela, Brazil and Rhodnius robustus from Venezuela, constructing a UPGMA.
R P, Soares +4 more
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Rhodnius prolixus interpopulation variability was studied based on a new approach using salivary heme proteins (nitrophorins) electrophoresis in starch gel. We compared salivary proteins profiles of R. prolixus from three different laboratory colonies from Honduras, Venezuela, Brazil and Rhodnius robustus from Venezuela, constructing a UPGMA.
R P, Soares +4 more
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