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501Publicado 1980“…N-Ethylmaleimide-modified heavy meromyosin (NEM-HMM) microinjected into amphibian eggs inhibits cytokinesis and the cortical contractions associated with wound closure. …”
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502
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503Publicado 1996“…Puzzled by recent reports of differences in specific ligand binding to muscle Ca2+ channels, we quantitatively compared the flux of Ca2+ release from the sarcoplasmic reticulum (SR) in skeletal muscle fibers of an amphibian (frog) and a mammal (rat), voltage clamped in a double Vaseline gap chamber. …”
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504
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505Publicado 1992“…To study the intranuclear localization of the U1-specific snRNP C protein and its assembly into U1 snRNPs, we injected transcripts encoding a myc-tagged C protein into amphibian oocytes. The distribution of protein translated from the injected RNA was essentially the same in continuous and pulse-label experiments. …”
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506por Ochoa-Ochoa, Leticia, Urbina-Cardona, J. Nicolás, Vázquez, Luis-Bernardo, Flores-Villela, Oscar, Bezaury-Creel, Juan“…The analyses were focused on amphibians because they are one of the most threatened groups worldwide. …”
Publicado 2009
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507A Qualitative Meta-Analysis Reveals Consistent Effects of Atrazine on Freshwater Fish and Amphibians“…Atrazine reduced size at or near metamorphosis in 15 of 17 studies and 14 of 14 species. Atrazine elevated amphibian and fish activity in 12 of 13 studies, reduced antipredator behaviors in 6 of 7 studies, and reduced olfactory abilities for fish but not for amphibians. …”
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508
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509“…Establishment success was also higher in amphibian and reptile families with larger relative brain sizes. …”
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510“…Day and night surveys at three sites, as well as controlled laboratory experiments were conducted for studying beetle-amphibian trophic interaction. In the field we recorded three cases of Epomis dejeani preying upon amphibian metamorphs and also found that Epomis adults share shelters with amphibians. …”
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511“…Environmental conditions can alter the outcomes of symbiotic interactions. Many amphibian species have declined due to chytridiomycosis, caused by the pathogenic fungus Batrachochytrium dendrobatidis (Bd), but many others persist despite high Bd infection prevalence. …”
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512por McKenzie, Valerie J, Bowers, Robert M, Fierer, Noah, Knight, Rob, Lauber, Christian L“…We sampled four pond habitats in Colorado, USA, where multiple amphibian species were present. In total, 32 amphibian individuals were sampled from three different species including northern leopard frogs (Lithobates pipiens), western chorus frogs (Pseudacris triseriata) and tiger salamanders (Ambystoma tigrinum). …”
Publicado 2012
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513“…We used piecewise regressions to show that, for amphibian beta diversity, two different world regions can be distinguished. …”
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514“…In this study, we examined the underlying interfamily variation in hatching timing and embryonic development in a population of an oviparous amphibian, the rough-skinned newt (Taricha granulosa). …”
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515“…Batrachochytrium dendrobatidis is the causative agent of chytridiomycosis, which is considered one of the driving forces behind the worldwide decline in populations of amphibians. As a member of the phylum Chytridiomycota, B. dendrobatidis has diverged significantly to emerge as the only pathogen of adult vertebrates. …”
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516por Willson, Sarah J., Kaufman, Michael G., Merritt, Richard W., Williamson, Heather R., Malakauskas, David M., Benbow, Mark Eric“…The objective of this study was to test the hypothesis that fish and amphibians serve as natural reservoirs of M. ulcerans or other closely related mycolactone-producing mycobacteria. …”
Publicado 2013
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517por Brum, Fernanda Thiesen, Gonçalves, Larissa Oliveira, Cappelatti, Laura, Carlucci, Marcos Bergmann, Debastiani, Vanderlei Júlio, Salengue, Elisa Viana, dos Santos Seger, Guilherme Dubal, Both, Camila, Bernardo-Silva, Jorge Sebastião, Loyola, Rafael Dias, da Silva Duarte, Leandro“…BACKGROUND: We evaluated the direct and indirect influence of climate, land use, phylogenetic structure, species richness and endemism on the distribution of New World threatened amphibians. METHODOLOGY/PRINCIPAL FINDINGS: We used the WWF’s New World ecoregions, the WWFs amphibian distributional data and the IUCN Red List Categories to obtain the number of threatened species per ecoregion. …”
Publicado 2013
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518por Murray, Kris A., Skerratt, Lee F., Garland, Stephen, Kriticos, Darren, McCallum, Hamish“…The pandemic amphibian disease chytridiomycosis often exhibits strong seasonality in both prevalence and disease-associated mortality once it becomes endemic. …”
Publicado 2013
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519por Peterson, John D., Steffen, John E., Reinert, Laura K., Cobine, Paul A., Appel, Arthur, Rollins-Smith, Louise, Mendonça, Mary T.“…Chytridiomycosis, a disease caused by Batrachochytrium dendrobatidis, has contributed to worldwide amphibian population declines; however, the pathogenesis of this disease is still somewhat unclear. …”
Publicado 2013
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520por Fonseca, Carlos Roberto, Coutinho, Renato M., Azevedo, Franciane, Berbert, Juliana M., Corso, Gilberto, Kraenkel, Roberto A.“…Habitat split is a major force behind the worldwide decline of amphibian populations, causing community change in richness and species composition. …”
Publicado 2013
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