Results 61 to 70 of about 303 (146)

Involvement of PLA₂, COX and LOX inRhinella arenarumoocyte maturation

Zygote, 2013
SummaryInRhinella arenarum, progesterone is the physiological nuclear maturation inducer that interacts with the oocyte surface and starts a cascade of events that leads to germinal vesicle breakdown (GVBD). Polyunsaturated fatty acids and their metabolites produced through cyclooxygenase (COX) and lipoxygenase (LOX) pathways play an important role in ...
Ortiz, María Eugenia, Bühler, Marta Ines, Zelarayán, Liliana Isabel   +2 more
openaire   +3 more sources

Ecología trófica en larvas de Rhinella arenarum (Anura: Bufonidae) en agroecosistemas y sus posibles implicaciones para la conservación Trophic ecology in tadpoles of Rhinella arenarum (Anura: Bufonidae) in agroecosystems and their possible implications for conservation

Revista de Biología Tropical, 2012
El crecimiento de la agricultura produce perdida del habitat natural, con consecuencias para la biodiversidad de los anfibios. Se analizo la dieta y condición corporal de larvas de anuros de Rhinella arenarum que habitan agroecosistemas.
Clarisa Bionda, Noemi Gari, Elisa Luque, Nancy Salas, Rafael Lajmanovich, Adolfo Martino   +5 more
doaj  

Análisis morfométrico de poblaciones larvales de Rhinella arenarum (Anura: Bufonidae) provenientes de ambientes con distinto nivel de perturbación antropogénica del centro de Argentina

Intropica, 2022
Se analizaron comparativamente variables corporales de dos poblaciones larvales de Rhinella arenarum provenientes de ambientes del centro de Argentina con distintos grados de perturbación antropogénica.
David H. Elías Panigo, Ma. del Rocío Fernández Bellone, Ma. Angelina Roggio, Fernando José Carezzano   +3 more
doaj  

Participation of PLA2 and PLC in DhL-induced activation ofRhinella arenarumoocytes

Zygote, 2015
SummaryRhinella arenarumoocytes can be artificially activated, a process known as parthenogenesis, by a sesquiterpenic lactone of the guaianolide group, dehydroleucodine (DhL). Transient increases in the concentration of cytosolic Ca2+are essential to trigger egg activation events. In this sense, the 1-4-5 inositol triphosphate receptors (IP3R) seem to
Zapata Martínez, José Enrique, Medina, María Fernanda, Gramajo Bühler, María Cecilia, Seisdedos de Sánchez Toranzo, Graciela del Valle   +3 more
openaire   +3 more sources

Developmental toxicity and risk assessment of nonylphenol to the South American toad, Rhinella arenarum [PDF]

Environmental Toxicology and Pharmacology, 2014
The toxicity of Nonylphenol, an emerging pollutant, on the common South American toad Rhinella arenarum was stage and time dependent, thus Median Lethal Concentrations (LC50) for acute (96h), short-term chronic (168h) and chronic exposure (336h) were 1.06; 0.96 and 0.17mgNP/L from embryonic period (S.4), whereas for exposure from larvae (S.25), LC50 ...
Aronzon, Carolina Mariel, Babay, Paola Alejandra, Perez Coll, Cristina Silvia   +2 more
openaire   +3 more sources

First report of Aplectana hylambatis (Nematoda: Cosmocercidae) in amphibians from the San Luis province, Argentina

Revista Mexicana de Biodiversidad
The studies of helminth parasites in Argentine amphibians have focused on the Dry and Humid Chaco ecoregions; in the Dry Chaco the reports are from the Chaco and Formosa provinces.
Maria Alejandra Villegas-Ojeda, Guido Fernández-Marinone, Mariana Jofré, Cynthya González   +3 more
doaj   +1 more source

Slope-based and geometric encoding of a goal location by the terrestrial toad (Rhinella arenarum).

Journal of Comparative Psychology, 2017
The current study was designed to test for the ability of terrestrial toads, Rhinella arenarum, to use slope as source of spatial information to locate a goal, and investigate the relative importance of slope and geometric information for goal localization.
Sotelo, María Inés, Bingman, Verner Peter, Muzio, Ruben Nestor   +2 more
openaire   +3 more sources

Phospholipid changes in Rhinella arenarum embryos under different acclimation conditions to copper

Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2016
Abstract We report phospholipid changes in Rhinella arenarum embryos after applying three acclimation protocols to copper between 40 and 420 ng L − 1 . The lower and higher acclimation treatments resulted in embryos' enhanced resistance to this metal.
Fonovich, Teresa Mabel, Perez Coll, Cristina Silvia, Fridman, Osvaldo, D'eramo, Jose Luis, Herkovits, Jorge   +4 more
openaire   +3 more sources

Demografía poblacional de Rhinella arenarum (Anura: Bufonidae) y Physalaemus biligonigerus (Anura: Leiuperidae) en agroecosistemas de la provincia de Córdoba, Argentina

Revista de Biología Tropical, 2013
El crecimiento de la agricultura produce pérdida del hábitat natural, con consecuencias para la biodiversidad de los anfibios. Se analizó la demografía poblacional de dos especies de anfibios en agroecosistemas de la provincia de Córdoba, Rhinella ...
Clarisa Bionda, Rafael Lajmanovich, Nancy Salas, Adolfo Martino, Ismael di Tada   +4 more
doaj  

Lista de vertebrados observados en una zona periurbana de Coquimbito, Maipú, provincia de Mendoza, Argentina

Acta Zoológica Lilloana
El distrito de Coquimbito, ubicado en el departamento de Maipú, provincia de Mendoza, Argentina, es reconocido por sus actividades vitivinícolas, frutícolas e industriales.
Diego Ferrer
doaj   +1 more source