Results 11 to 20 of about 805 (182)
RESPIRATORY REGULATION INBUFO ARENARUMEGGS
The Biological Bulletin, 1971 The more plausible hypotheses regarding the mechanism which controls amphibian embryonic respiration have been reviewed, providing some explanation for the contradictory respiratory ratios between intact and homogenized eggs reported by other investigators.The concentration of embryonic material appears to be of the utmost significance in the relative ...
Arnaldo H. Legname +2 more
openalex +4 more sources
Anaerobiosis in the segmenting eggs of Bufo arenarum [PDF]
Development, 1966 ABSTRACT In the last few years our interest has been devoted to the energy metabolism of the eggs of the common toad Bufo arenarum Hensel which, like some other amphibian eggs, can cleave at a normal rate in the absence of oxygen or in the presence of cyanide (Barbieri & Legname, 1957). Under anaerobic conditions a rapid accumulation
Francisco D. Barbieri +1 more
openalex +3 more sources
Mitochondrial lipids in Bufo arenarum full-grown oocytes [PDF]
Zygote, 2004 Both the content and composition of polar and neutral lipids from the mitochondrial fraction of ovarian full-grown Bufo arenarum oocytes were analysed in the present study. Triacylglycerols (TAG) represent 33% of the total lipids, followed by phosphatidylcholine (PC), free fatty acids (FFA) and phosphatidylethanolamine (PE). Diphosphatidylglycerol (DPG)
Valeria Gili, Telma S. Alonso
openalex +4 more sources
Reacción de Galli Mainini - Consideraciones generales
Revista Colombiana de Obstetricia y Ginecología, 1957 Desde el año de 1922 Houssay y su escuela aportaron los conocimientos básicos sobre la anatomía, histología y fisiología de diversos batracios, especialmente del Bufo Arenarum Hensel y sus íntimas relaciones, entre la función testicular y las ...
Gilberto Angel M.
doaj +1 more source
Journal of Morphology, Volume 281, Issue 7, Page 725-736, July 2020., 2020 Scanning electron microscopy of vascular corrosion casts of kidneys of adult Xenopus laevis convincingly confirms that renal portal veins supply most of the renal parenchyma and renal arteries primarily feed renal glomeruli. Abstract We studied the opisthonephric (mesonephric) kidneys of adult male and female Xenopus laevis using scanning electron ...
Alois Lametschwandtner, Bernd Minnich
wiley +1 more source
Revista do Instituto de Medicina Tropical de São Paulo, 1989 El objetivo del trabajo fue lograr la reproducción experimental del ciclo evolutivo de Diphyllobothrium erinaceieuropei Rudolphi 1819 (Cestoda, Pseudophyllidea) con la intervención de Paracyclops fimbriatus y larvas de Bufo arenarum como hospedadores ...
Lucila Venturini
doaj +1 more source
Variaciones intrapoblacionales de patrones electroforéticos seroproteínicos en Bufo arenarum
Acta Zoológica Lilloana, 2022 La variación intrapoblacional del patrón electroforético de las seroproteínas de Bufo arenarum Hensel encontradas en la región de Mendoza, permite reconocer cuatro grupos principales, basados en diferencias de densidad y desdoblamiento de las bandas que
Raquel Cohen de Hunau
doaj
Corticosteroidogenesis in the toad Bufo arenarum H: evidence for a precursor role for an aldosterone 3β-hydroxy-5-ene analogue (3β, 11β, 21-trihydroxy-20-oxo-5-pregnen-18-al) [PDF]
Biochem J, 1993 N.R. Ceballos +5 more
openalex +2 more sources
BioMed Research International, Volume 2019, Issue 1, 2019., 2019 Skin secretions of frogs have a high chemical complexity. They have diverse types of biomolecules, such as proteins, peptides, biogenic amines, and alkaloids. These compounds protect amphibians’ skin against growth of bacteria, fungi, and protozoa and participate in defense system against attack from predators.
Daniel S. S. de Medeiros +16 more
wiley +1 more source
Cambios estructurales en el ovocito de Bufo arenarum durante la fecundación
Acta Zoológica Lilloana, 2022 Se describe la organización morfológica del ovocito maduro del sapo Bute arenarum. Se estudiaron algunos aspectos del proceso de activación, como la reacción pelicular, la emisión del segundo cuerpo polar, la rotación de orientación y la rotación de ...
Francisco D. Barbieri +1 more
doaj