Results 31 to 40 of about 4,604 (212)

Implication of Cytoplasmic Factors in the Lethality of Bufonidae Nucleocytoplasmic Hybrids [PDF]

open access: yesDevelopment, Growth & Differentiation, 1984
The nucleocytoplasmic hybrid combination performed by nuclear graft between B. bufo nucleus and B. calamita egg is 95% lethal during gastrulation mostly at the young gastrula stage (75%) and to a lesser extent at the yolk plug stage (20%). The heterologous B. calamita cytoplasm was treated or fractioned by different techniques including centrifugation,
Michel, Delarue, Christian, Aimar
openaire   +2 more sources

Predation of Rhinella granulosa (Anura: Bufonidae) by the fish Oligosarcus argenteus (Osteichthyes: Characidae)

open access: yes, 2022
Predation of Rhinella granulosa (Anura: Bufonidae) by the fish Oligosarcus argenteus (Osteichthyes ...
Giongo, Patrícia   +5 more
core   +1 more source

Effects of temperature and volume of water on the growth and development of tadpoles of Pleurodema diplolister and Rhinella granulosa (Amphibia: Anura)

open access: yesZoologia (Curitiba), 2009
The capacity of tadpoles to reduce their metamorphosis time and body size in response to fluctuations in environmental variables of temporary ponds has been recorded in field and laboratory studies. The main alterations in this habitat are related to the
Thely A. Maciel, Flora A. Juncá
doaj   +1 more source

A review of chemical defense in harlequin toads (Bufonidae; Atelopus)

open access: yesToxicon: X, 2021
Toads of the genus Atelopus are chemically defended by a unique combination of endogenously synthesized cardiotoxins (bufadienolides) and neurotoxins which may be sequestered (guanidinium alkaloids). Investigation into Atelopus small-molecule chemical defenses has been primarily concerned with identifying and characterizing various forms of these ...
Kannon C. Pearson, Rebecca D. Tarvin
openaire   +7 more sources

Amphibia and Reptilia, Quebrada de los Cuervos, Departamento de Treinta y Tres, Uruguay [PDF]

open access: yesCheck List, 2011
We present an annotated list of the herpetofauna at the Protected Area Quebrada de los Cuervos, Departamento de Treinta y Tres, Uruguay. We recorded 24 species of amphibians and 29 of reptiles, accounting for near half of the species already reported ...
Carlos Prigioni   +2 more
doaj   +3 more sources

Systematics of the endangered toad genus Andinophryne (Anura: Bufonidae): phylogenetic position and synonymy under the genus Rhaebo.

open access: yes, 2015
Bufonidae is one of the most diverse amphibian families. Its large-scale phylogenetic relationships are relatively well understood with the exception of few Neotropical genera that may have diverged early in the evolution of the family.
Ron Melo, Santiago Rafael
core   +1 more source

Chromosomes of South American Bufonidae (Amphibia anura) [PDF]

open access: yesExperientia, 1971
Se estudiaron los cariotipos de ocho especies de Bufonidae sudamericanos:B. arenarum, B. ictericus ictericus, B. paracnemis, B. marinus, B. crucifer, B. granulosus d'orbignyi, B. granulosus fernandezae andB. spinulosus. En todas las especies se encontraron 2n = 22 chromosomas.
Brum Zorrilla, N., Saenz, F. A.
openaire   +2 more sources

DETEKSI VARIASI TIGA JENIS KODOK (BUFONIDAE)DENGAN METODE PCR-RFLP [PDF]

open access: yes, 2017
Research about PCR-RFLP gene 16S rRNA in toad (Bufonidae) using restriction ezymes has conducted from October 2016 to January 2017. The aim of this research is to detect variation from three species of Bufonidae using PCR-RFLP method gene 16S rRNA.
Rahmi, Rahmi
core   +1 more source

Frog tongue surface microstructures: functional and evolutionary patterns

open access: yesBeilstein Journal of Nanotechnology, 2016
Frogs (Lissamphibia: Anura) use adhesive tongues to capture fast moving, elusive prey. For this, the tongues are moved quickly and adhere instantaneously to various prey surfaces.
Thomas Kleinteich, Stanislav N. Gorb
doaj   +1 more source

Hematología y citoquímica de las células sanguíneas de Rhinella fernandezae (Anura: Bufonidae) en Espinal y Delta-Islas del río Paraná, Argentina

open access: yesRevista de Biología Tropical, 2011
La descripción de la hematología de los anfibios anuros es escasa, habiéndose realizado la mayoría de los trabajos en especies de Norteamérica, Asia y Europa. Con el propósito de obtener datos hematológicos para Rhinella fernandezae, fueron estudiados 23
Mariana C Cabagna Zenklusen   +6 more
doaj   +2 more sources

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