Results 171 to 180 of about 2,292 (215)
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Ammonia transport by the urinary bladder of Bufo marinus
Comparative Biochemistry and Physiology Part A: Physiology, 1996All experiments were performed in vitro on toad bladders. Bladder sacs from acidotic toads produced a concentration gradient across the bladder with both [NH3] and [NH4] higher in the mucosal media. By varying the pH of the serosal media, paired sacs from normal toads were incubated with similar [NH3] in the serosal media but a 75 fold difference in ...
L B, Melton, J C, Vanatta
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Retinal Projections in the Cane Toad, Bufo marinus
Brain, Behavior and Evolution, 2008The location and extent of retinorecipient areas in the cane toad, Bufo marinus, were established by anterograde transport of cobaltic-lysine complex from the cut optic nerve. Most of the labeled optic axons travelled in the marginal optic tract, while others were in the axial optic tract, and/or the basal optic tract. Retinal projections terminated in
J, Wye-Dvorak, C, Straznicky, P, Tóth
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Fate of exogenous marinobufagin-3H in Bufo marinus
Biochemical Pharmacology, 1969Abstract After marinobufagin-3H was injected into toads, 80 per cent of the radioactivity could be extracted from various tissues 2–3 months later. One-half of the tissue radioactivity was found in the ovarian tissues, of which 80–90 per cent could be identified as unchanged marinobufagin by thin-layer chromatography and reverse isotope dilution ...
M V, Osuch, C, Chen
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Innervation of the renal vasculature of the toad (Bufo marinus)
Cell and Tissue Research, 1983The innervation of the dorsal aorta and renal vasculature in the toad (Bufo marinus) has been studied with both fluorescence and ultrastructural histochemistry. The innervation consists primarily of a dense plexus of adrenergic nerves associated with all levels of the preglomerular vasculature.
J L, Morris, I L, Gibbins
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Thermoregulatory behaviour in the toads Bufo marinus and Bufo cognatus
Journal of Thermal Biology, 1991Abstract 1. 1.|The temperature preference of Bufo marinus in a linear thermal gradient over a 24 h period was measured in the spring using uniform light (UL) over the length of the gradient and in the spring and fall using a point source of light over the hot end of the gradient only (LH). 2.
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Hyperoxia in the toad, Bufo marinus marinus (L.)
1979The respiration and blood acid-base regulation of pufo marinus Was examined in nine unrestrained animals during normoxia (PIO₂ = 0.2 atm) and hyperoxia (PIO₂ = 0.6 atm). Arterial blood was serially sampled just prior to O₂ onset, at 1/2, 1, 11/2, 3, 7 and 20 h during hyperoxia and 3 h after exposure, and analyzed for PaO₂, PaCO₂, pHa and [HCO₃⁻]a ...
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LEPTOSPIRES IN THE MARINE TOAD (BUFO MARINUS) ON BARBADOS
Journal of Wildlife Diseases, 1988Leptospires were isolated from the kidneys of four of 211 toads (Bufo marinus) caught on Barbados. Two of the isolates were identified as Leptospira interrogans serovar bim in the Autumnalis serogroup (the most common cause of leptospiral illness on Barbados), and two as possibly new serovars in the Australis serogroup.
C O, Everard +3 more
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Hemoglobin functions in the blood of Bufo marinus
Journal of Cellular Physiology, 1966AbstractThe effects of three physical‐chemical factors, temperature, hydrogen ion concentration, and partial pressure of oxygen, on the respiratory functions of blood of the toad (Bufo marinus) have been studied.Measurements of oxygen affinity of hemoglobin in whole blood were measured tonometrically by a method devised for small quantities of blood ...
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Cytochemistry of the Blood Basophil of Bufo marinus
Journal of Herpetology, 1988The morphology and cytochemistry of the blood basophil of Bufo marinus are characterized, and compared and contrasted to the basophil from several other amphibians and with the mammalian basophil. The basophil of B. marinus contains at least one type of mucopolysaccharide and an acid mu- copolysaccharide, possibly heparin, within the cytoplasmic ...
M. Samuel Cannon +3 more
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Ammonium production in the toad Bufo Marinus Marinus (L.)
1976The effect of exposure to increased carbon dioxide tensions on ammonium excretion by the urinary bladder of the toad Bufo marinus was studied. Ammonium excretion had been previously demonstrated in NH₄Cl-induced acidotic toads. No significant change in ammonium concentration was observed in four toads exposed to 1 (±0.05%) CO₂ for a 24 hour period.
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