Results 71 to 80 of about 303 (146)

Developmental and polyamine metabolism alterations in Rhinella arenarum embryos exposed to the organophosphate chlorpyrifos

open access: yesEnvironmental Toxicology and Chemistry, 2012
Abstract Organophosphorus pesticides (OPs) are widely applied in the Alto Valle of Río Negro and Neuquén, Argentina, due to intensive fruit growing. Amphibians are particularly sensitive to environmental pollution, and OPs may transiently accumulate in ponds and channels of the region during their reproductive season.
Sotomayor, Veronica   +3 more
openaire   +3 more sources

Alteraciones del desarrollo embrionario, poliaminas y estrés oxidativo inducidos por plaguicidas organofosforados en Rhinella Arenarum Alterations in embryonic development, polyamines and oxidative stress induced by organophosphates in Rhinella arenarum

open access: yesActa Toxicológica Argentina, 2009
Los plaguicidas organofosforados (OP) son masivamente aplicados en el Alto Valle de Río Negro y Neuquén, afectando al ecosistema. Utilizamos un modelo embrionario de anfibios (Rhinella arenarum) para estudiar mecanismos por los cuales OP como ...
Cecilia Inés Lascano   +3 more
doaj  

Ecología trófica en larvas de Rhinella arenarum (Anura: Bufonidae) en agroecosistemas y sus posibles implicaciones para la conservación

open access: yesRevista 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   +5 more
doaj  

Rhinella arenarum (Argentine toad) egg predation by leeches

open access: yes, 2015
Fil: Faivovich, Julián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario.
Masetti, Maria Clara   +2 more
openaire   +1 more source

Characterization and seasonal changes in LHβ and FSHβ mRNA of Rhinella arenarum (Amphibia, Anura)

open access: yesGeneral and Comparative Endocrinology, 2013
In anurans, two types of gonadotropins were described in several species of Ranidae and Pipidae families but only in one of the Bufonidae family. Rhinella arenarum is a bufonid that have the lowest concentration of plasma androgens during the breeding.
Volonteri, María Clara   +3 more
openaire   +3 more sources

Effects of azinphos methyl and carbaryl on Rhinella arenarum larvae esterases and antioxidant enzymes

open access: yesComparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2011
Organophosphate (OP) and carbamate pesticides are anticholinesterasic agents also able to alter antioxidant defenses in different organisms. Amphibian larvae are naturally exposed to these pesticides in their aquatic environments located within agricultural areas.
Ferrari, Ana   +3 more
openaire   +3 more sources

A curious case of herbivory in the common toad Rhinella arenarum arenarum during hibernation in captivity conditions

open access: yes, 2013
Fil: Paz, Dante Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales.
Jungblut, Lucas David   +2 more
openaire   +2 more sources

EVOLUCIÓN DE FENÓMENOS BÁSICOS DE APRENDIZAJE EN TAREAS DE MEMORIA ESPACIAL: BLOQUEO, ENSOMBRECIMIENTO E INHIBICIÓN LATENTE EN ANFIBIOS

open access: yesInterdisciplinaria, 2015
En este artículo se describen desde una perspectiva comparativa los fenómenos de bloqueo, ensombrecimiento e inhibición latente, enfatizando su presencia en tareas de aprendizaje espacial.
MARÍA FLORENCIA DANERI   +1 more
doaj  

Antimicrobial Compounds from Skin Secretions of Species That Belong to the Bufonidae Family. [PDF]

open access: yesToxins (Basel), 2023
Ibarra-Vega R   +7 more
europepmc   +1 more source

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