Results 121 to 130 of about 563 (144)

Tissue-Specific Variations of Esterase Activities in the Tadpoles and Adults of Pseudis paradoxa (Anura: Hylidae)

Water, Air, and Soil Pollution, 2014
We determined basal levels of cholinesterase (ChE) and carboxylesterase (CbEs; two substrates: α-naphthyl acetate and 4-nitrophenylvalerate) in different tissues of tadpoles and adults of the frog Pseudis paradoxa and evaluated their use as complementary biomarkers of anti-cholinesterase pesticide exposure. ChE and CbEs sensitivity to malaoxon was also
Agustin Bassó, Rafael Lajmanovich
exaly   +3 more sources

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Pseudis paradoxa

2003
exaly   +2 more sources

Giant Tadpole and Delayed Metamorphosis of Pseudis platensis Gallardo, 1961 (Anura, Hylidae)

Journal of Herpetology, 2009
Pseudis platensis, like Pseudis paradoxa, is a Neotropical aquatic frog with a giant tadpole. Despite being one of the few anuran species whose larvae grow larger than adults, knowledge of its larval development is limited to prometamorphic stages. This study describes qualitative and quantitative variation through P.
Fabrezi, Marissa, Quinzio, Silvia Inés, Goldberg, Francisco Javier   +2 more
exaly   +3 more sources

Sexual Dimorphism and Diet ofPseudis tocantins(Anura, Hylidae, Pseudae)

South American Journal of Herpetology, 2014
Abstract. The genus Pseudis (Hylidae) includes aquatic frogs distributed throughout South America east of the Andes. Few papers have been published on the ecology of these species, despite the great interest their gigantic larvae raise among herpetologists.
Matheus de Oliveira Neves, Carlos José da Silva Morais, Adrian Antonio Garda   +2 more
openaire   +1 more source

Histology and microscopic anatomy of the thyroid gland during the larval development of Pseudis platensis (Anura, Hylidae)

Journal of Morphology, 2019
AbstractSeveral hormones regulate anuran larval development, most notably thyroid hormones (THs). In anurans, metamorphosis fails when the thyroid gland is absent or inactivated, resulting in giant tadpoles. Larval gigantism occurs naturally in neotropical frogs of the genus Pseudis as a result of a prolonged larval period.
Julio César Cruz, Marissa Fabrezi
openaire   +3 more sources

Vocal sac development and accelerated sexual maturity in the lesser swimming frog, Pseudis minuta (Anura, Hylidae)

Zoology, 2016
Sexual maturity involves the differentiation of the reproductive system, the maturation of germ cells, and the development of secondary sexual characteristics. Even though this topic has received much attention, little is known about the sequence of events that encompass reproductive maturation in anurans and what it could reveal about the ...
Goldberg, Francisco Javier, Barrasso, Diego Andrés, Agostini, Maria Gabriela, Quinzio, Silvia Inés   +3 more
openaire   +3 more sources

Molecular and New Morphological Data on Nematode Hedruris dratini Found Parasitizing Pseudis minuta (Anura: Hylidae)

Journal of Parasitology
Hedruris has a worldwide distribution, parasitizing lampreys, fishes, frogs, and lizards. In South America, 4 species have been reported on frogs (Hedruris heyeri, Hedruris juninensis, Hedruris moniezi, and Hedruris mucronifer), 3 on fishes (Hedruris basilichtensis, Hedruris orestiae, and Hedruris suttonae), and 1 on turtles (Hedruris dratini).
Montes, Martin Miguel, Croci, Yasmin, Barneche, Jorge Adrian, Balcazar, Dario Emmanuel, Reig Cardarella, German F., Martorelli, Sergio R   +5 more
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pseudy, adj.

2023
openaire   +1 more source

Comparative molecular cytogenetics of genus Pseudis (Anura, Hylidae) and genomic analysis of the sex chromosomes of Pseudis tocantins

2021
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Anomalías osteológicas en Hyla pulchella y Pseudis paradoxis platensis (Amphibia: anura)

1987
El presente documento es un resumen del trabajo ...
Perí, Silvia I., Williams, Jorge Daniel
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