Bufo Marinus
Mostrando 1-12 de 76 artigos, teses e dissertações.
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1. Comportamento respiratório em repouso de sapos minimamente implantados - efeitos de apnéias de longa duração sobre o pH e gases sanguíneos
O comportamento respiratório em repouso de Bufo marinus é descrito em animais minimamente implantados por um período de 24 horas, durante as quais os animais permanecem em total isolamento. Um estado de torpor associado a longas apnéias é descrito, e suas implicações sobre os níveis de gases sanguíneos é investigada. Os resultados mostram que o rit
Brazilian Journal of Biology. Publicado em: 2003-02
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2. Padrões respiratórios do anfíbio Bufo marinus revelados por análise de coerência
A dinâmica respiratória em anfíbios apresenta um padrão complexo e irregular de episódios respiratórios isolados ou em cadeia utilizados para inflar ou desinflar os pulmões. A dinâmica respiratória depende do controle fino e coordenado das duas saídas da cavidade bucal (glote e válvulas nasais). Neste estudo, utilizamos análise de coerência, uma
Brazilian Journal of Biology. Publicado em: 2003-02
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3. A new species of Bufo Laurenti (Anura, Bufonidae) from northeastern Brazil
A new species of bufonid load, Bufo jimi sp. nov., is described from Maracás and Itagibá, State of Bahia, Brazil. This species shows close relationships to B. paracnemis Lutz, 1925 by sharing the presence of tibial glands and the paratoid glands shape. The new species is a member of the Bufo marinus-group, and is characlerized by having well-defined glands
Revista Brasileira de Zoologia. Publicado em: 2002-07
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4. Propriedades funcionais e antigenicas de hemoglobinas de anfibios terrestres e aquaticos
Propriedades funcionais de hemoglobinas de anfíbios de ?habitats? terrestres e aquáticos foram estudadas a fim de correlaciona-las com propriedades antigênicas destas proteínas. Pôde-se observar que as hemoglobinas dos anuros terrestres Bufo paracnemis, Bufo marinus, Rana catesbeiana e Leptodactylus labyrinthicus possuem menor afinidade pelo oxigênio q
Publicado em: 1980
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5. Osmotic water flow across the abdominal skin of the toad Bufo marinus: effect of vasopressin and isoprenaline
1. Net water flow Jw, was measured across the abdominal skin of the toad Bufo marinus with a volumetric, automatic technique that allows for averaging Jw over time intervals as short as 1 sec.
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6. Molecular characterization of the Bufo marinus mitochondrial genome.
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7. The dynamics of venous return and response to hypervolemia in the toad, Bufo marinus (L.)
BioMed Central.
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8. Ultrastructure of the renal juxtaglomerular complex and peripolar cells in the axolotl (Ambystoma mexicanum) and toad (Bufo marinus).
Renal juxtaglomerular regions were examined in the axolotl (Ambystoma mexicanum and toad (Bufo marinus). Prominent granulated peripolar epithelial cells were found surrounding the origin of the glomerular tuft in the axolotl. These cells resembled the peripolar cells recently discovered in mammalian species. They contained multiple electron-dense cytoplasmic
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9. The Ecological Genetics of Introduced Populations of the Giant Toad BUFO MARINUS. II. Effective Population Size
The allele frequencies are described at ten polymorphic enzyme loci (of a total of 22 loci sampled) in 15 populations of the neotropical giant toad, Bufo marinus, introduced to Hawaii and Australia in the 1930s. The history of establishment of the ten populations is described and used as a framework for the analysis of allele frequency variances. The varianc
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10. Ionophoretically applied acetylcholine and vagal stimulation in the arrested sinus venosus of the toad, Bufo marinus.
1. The effects of acetylcholine (ACh), applied by ionophoresis, on the isolated arrested sinus venosus of the toad, Bufo marinus, were examined. 2. At each position where ACh was applied across the surface of sinus venosus preparations, a hyperpolarization was produced. These responses were abolished by hyoscine, indicating that muscarinic cholinoceptors are
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11. The effects of sodium replacement on the responses of toad rods
1. We have investigated the effects of Na+ substitution on the membrane potential and light responses of rods in the superfused retina of the toad, Bufo marinus.
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12. Endothelial cells in the oral mucosa of Bufo marinus.
The oral mucosa of the cane toad (Bufo marinus) is lined by a pseudostratified columnar ciliated epithelium containing an intraepithelial network of capillaries, which penetrates it to the bases of the distal layer of cells. The capillaries are lined by fenestrated endothelium lying on a complete basal lamina. A connective tissue sheath, approximately 1 micr