Results 51 to 60 of about 11,636 (194)
Reacción cuantitativa de la Rana Macho “Rana Pipiens” a la acción de Gonadotrofina Coriónica
Revista de la Facultad de Medicina, 1950 En esta investigación se concluyo que la secreción de espermatozoides en ]a rana. macho Rana pipiens con la inyección de gonadotrofina coriónica es una reacción satisfactoria como procedimiento de ensayo biológico para la determinación de la actividad de
Cecilia Hartmann Perdomo, C. W. Chapman
doaj
Small Non-coding RNA Expression and Vertebrate Anoxia Tolerance
Frontiers in Genetics, 2018 Background: Extreme anoxia tolerance requires a metabolic depression whose modulation could involve small non-coding RNAs (small ncRNAs), which are specific, rapid, and reversible regulators of gene expression.
Claire L. Riggs +7 more
doaj +1 more source
A physiological measure of shifting connections in the Rana pipiens retinotectal system [PDF]
, 1986 The retinotectal connections of developing Rana tadpoles and froglets have been studied using light-pipe techniques to directly assay the pattern of the projection from the retina to the tectum.
Fraser, Scott E., Hunt, R. Kevin
core
Journal of the World Aquaculture Society, Volume 57, Issue 2, April 2026.Abstract The NLRP3 inflammasome is essential for innate immunity against pathogens, yet its function in amphibians remains poorly understood. Here, we identified and cloned two novel isoforms of NLRP3 from the American bullfrog (Aquarana catesbeiana), designated AcNLRP3 X1 and AcNLRP3 X2, with open reading frames of 2397 bp (798 aa) and 2874 bp (957 aa)
Peikui Yang +8 more
wiley +1 more source
Effects of Pesticide Mixtures on Host-Pathogen Dynamics of the Amphibian Chytrid Fungus.
PLoS ONE, 2015 Anthropogenic and natural stressors often interact to affect organisms. Amphibian populations are undergoing unprecedented declines and extinctions with pesticides and emerging infectious diseases implicated as causal factors.
Julia C Buck +8 more
doaj +1 more source
Waving Through Ontogeny: The Larval Chondrocranial Development of Staurois parvus
International Journal of Zoology, Volume 2026, Issue 1, 2026.The vertebrate skull is a complex structure with diverse evolutionary and developmental patterns. Anuran chondrocranial development has been shown to deviate from generalized vertebrate trends, highlighting its evolutionary flexibility. This study investigates the chondrocranial development of Staurois parvus, a ranid frog, to provide insights into ...
Paul Lukas, Lipi Buch
wiley +1 more source
Integrative Conservation, Volume 4, Issue 4, Page 675-685, December 2025.We demonstrated that Anguilla japonica eDNA concentration was allometrically scaled with their body size in both the laboratory and riverine environments. Integrating body size allometry has the potential to improve population abundance estimates in the field, whereas further clarification is required for understanding eDNA production mechanisms ...
Toshiaki S. Jo +2 more
wiley +1 more source
SECOND INTERNATIONAL SYMPOSIUM ON RANAVIRUSES:: A NORTH AMERICAN HERPETOLOGICAL PERSPECTIVE [PDF]
, 2014 Ranaviruses are large double stranded DNA viruses of poikilothermic vertebrates including amphibians, reptiles and fish. In North America, ranaviral disease and ranavirus-related die-off events have been documented in all three classes.
Brunner, Jesse L. +3 more
core +2 more sources
Ecology and Evolution, Volume 15, Issue 9, September 2025.The colour of amphibian skin and eyes is the result of light interacting with multiple chromatophores (xanthophores, iridophores and melanophores), leading to challenges when trying to identify which of these cells are involved in colour abnormalities.
John Gould
wiley +1 more source
Shooting Mechanisms in Nature: A Systematic Review.
PLoS ONE, 2016 BackgroundIn nature, shooting mechanisms are used for a variety of purposes, including prey capture, defense, and reproduction. This review offers insight into the working principles of shooting mechanisms in fungi, plants, and animals in the light of ...
Aimée Sakes +5 more
doaj +1 more source