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1-20 of 21
Keywords: potassium
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Journal Articles
In collection:
Neuroethology
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (15): 2701–2705.
Published: 1 August 2017
... between birds and mammals in gene expression associated with K + clearance. Mechanotransduction Avian Evolution Inner ear Potassium Slc12 K + is the major charge ion in the vertebrate inner ear. Its apical influx into hair cells initiates mechanotransduction in both the auditory...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2016) 219 (5): 626–630.
Published: 1 March 2016
... © 2016. Published by The Company of Biologists Ltd 2016 Summary: Locust spreading depression is strongly dependent on existing levels of neural activity. Increased neural activity heightens susceptibility to spreading depression, whereas a reduction in activity is inhibitory. Potassium...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2014) 217 (16): 2930–2938.
Published: 15 August 2014
... limits Neuromuscular system Potassium In order to make accurate predictions of the sensitivity of species to climate change, we must understand the physiological mechanisms that set critical thermal limits to animal performance and fitness ( Hofmann and Todgham, 2010 ). The majority of insect...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2012) 215 (3): 461–470.
Published: 1 February 2012
... rather than salt excretion. * Author for correspondence ( [email protected] ) 31 10 2011 © 2012. 2012 insect gut salt stress sodium potassium haemolymph ionoregulation phenotypic plasticity In many insects, the gut and/or the Malpighian (renal) tubules play...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2011) 214 (20): 3443–3454.
Published: 15 October 2011
... ( [email protected] ) 25 7 2011 © 2011. 2011 Malpighian tubule salt stress sodium potassium haemolymph ionoregulation Insects are known to survive a wide variety of desiccating or hypersaline environments that pose challenges to the maintenance of homeostasis. For example...
Journal Articles
Mark R. Rheault, Bernard A. Okech, Stephen B. W. Keen, Melissa M. Miller, Ella A. Meleshkevitch, Paul J. Linser, Dmitri Y. Boudko, William R. Harvey
Journal:
Journal of Experimental Biology
J Exp Biol (2007) 210 (21): 3848–3861.
Published: 1 November 2007
... (Invitrogen, Carlsbad, CA, USA) at a 1:500 dilution in blocking solution, followed by a wash step. Paraffin sections (6 μm thick) were prepared from larval tissues by the method of Patrick et al. ( Patrick et al.,2006 ), mounted onto gelatin-coated slides (1% gelatin and 0.1%chromium potassium sulfate...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2007) 210 (3): 421–431.
Published: 1 February 2007
... intrinsic heart rate potassium red-eared slider temperature Trachemys scripta turtle Freshwater turtles of the genera Chrysemys and Trachemys exhibit a remarkable ability to endure prolonged periods of anoxia. At warm acclimation temperatures (20°C–25°C), these animals can survive 12–24 h...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2005) 208 (16): 3055–3063.
Published: 15 August 2005
..., of sodium and potassium currents of somatic muscle of larval Danio rerio to investigate their possible contribution to once-only firing. Our computer model incorporated simulated sodium and potassium ion channels based on steady-state and kinetic parameters derived from a recent electrophysiological study...
Journal Articles
K + amino acid transporter KAAT1 mutant Y147F has increased transport activity and altered substrate selectivity
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (2): 245–254.
Published: 15 January 2003
... characteristics of mammalian and insect amino acid transporters: implications for amino acid homeostasis. J. Exp. Biol. 200 , 269 -286. Castagna, M., Shayakul, C., Trotti, D., Sacchi, V. F., Harvey,W. R. and Hediger, M. A. ( 1998 ). Cloning and characterization of KAAT1, a potassium-coupled amino acid...
Journal Articles
Conserved tyrosine-147 plays a critical role in the ligand-gated current of the epithelial cation/amino acid transporter/channel CAATCH1
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2002) 205 (16): 2545–2553.
Published: 15 August 2002
... shares some properties in common with ligand inhibition of DAT, SERT, NET and the γ-aminobutyric acid transporter (GAT1). † e-mail: [email protected] 21 5 2002 © The Company of Biologists Limited 2002 2002 ion channel potassium sodium amino acid transporter ionic...
Journal Articles
The Impact of Endurance Training on Arterial Plasma K + Levels and Swimming Performance of Rainbow Trout
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1998) 201 (9): 1373–1380.
Published: 1 May 1998
...-ATPase concentration quantified by 3 H-ouabain binding to intact biopsies before and after moderate physical conditioning . Int. J. Sports Med . 11 , 304 – 307 . Lindinger , M. I. ( 1995 ). Potassium regulation during exercise and recovery in humans: Implication for skeletal...
Journal Articles
The Effects of Altering Extracellular Potassium Ion Concentration on the Membrane Potential and Circadian Clock of Paramecium Bursaria
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1994) 197 (1): 295–308.
Published: 1 December 1994
...Carl Hirschie Johnson; Yasuo Nakaoka; Isoji Miwa ABSTRACT In some neural models of circadian rhythmicity, membrane potential and transmembrane flux of potassium and calcium ions appear to play important roles in the entrainment and central mechanisms of the biological clock. We wondered whether...
Journal Articles
Short-Term Cell Volume Regulation in Mytilus Californianus Gill
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1994) 194 (1): 47–68.
Published: 1 September 1994
... circles). 17 5 1994 ©The Company of Biologists Limited 1994 bivalve Mytilus californianus osmoregulation taurine betaine potassium When exposed for prolonged periods (days to weeks) to hypo-osmotic media, euryhaline marine invertebrates typically respond by reducing...
Journal Articles
Storage and Release of Catecholamines from the Chromaffin Tissue of the Atlantic Hagfish Myxine Glutinosa
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1993) 183 (1): 165–184.
Published: 1 October 1993
... and Kinkead, 1989 ) function. catecholamines adrenaline noradrenaline Myxine glutinosa hypoxia anoxia heart cardiac potassium acetylcholine Surprisingly few studies have evaluated the oxygen-binding properties of hagfish blood and the data are sufficiently disparate to permit...
Journal Articles
A Simple Method for Construction of Flexible, Subminiature Ion-Selective Electrodes
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1992) 162 (1): 353–359.
Published: 1 January 1992
...-selective electrodes pH sodium potassium calcium ammonium Although the latter type of electrode is suitable for intramyocardial and intravascular recording from animals the size of dogs and pigs ( Hill et al . 1978 ), flexible electrodes with smaller diameters and longer shanks are required...
Journal Articles
Effects of Octopamine on Calcium Action Potentials in Insect Oocytes
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1989) 142 (1): 115–124.
Published: 1 March 1989
... in a voltage-dependent potassium conductance. Application of other phenolamines indicated a rank order of potency of D,L-octopamine > D,L-synephrine > tyramine. The α -adrenergic agonists clonidine, naphazoline and tolazoline were without significant effect at 10 −5 –10 −3 moll −1 . Reduction...
Journal Articles
Anomalous Behaviour of 86 Rb as a Tracer for Transintestinal Potassium Transport in the Fowl, Gallus Domesticus
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Journal:
Journal of Experimental Biology
J Exp Biol (1988) 135 (1): 487–490.
Published: 1 March 1988
...Barbara R. Grubb; Helen V. Brown; P. J. Bentley ABSTRACT Fluxes of potassium ions across biological membranes can be measured using 42 K as a tracer. This isotope, however, has a half-life of only 12-4 h and it is expensive. Rubidium belongs to the alkali metal series of elements and rubidium ions...
Journal Articles
The Recovery From a Transient Inhibition of the Oxidative Metabolism of the Photoreceptors of the Drone ( Apis Mellifera ♂)
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Journal:
Journal of Experimental Biology
J Exp Biol (1985) 119 (1): 165–181.
Published: 1 November 1985
... amytal potassium pH The histology of the honey-bee drone retina suggests a remarkable metabolic compartmentation: the photoreceptors contain numerous mitochondria ranged at the periphery of the cell close to the cytoplasmic membrane, facing fin-like processes of the adjacent glial cells, which...
Journal Articles
Responses of Regularly-Firing Aplysia R 3 -R 13 Neurones to Normoxia and Hypoxia
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Journal:
Journal of Experimental Biology
J Exp Biol (1983) 107 (1): 1–8.
Published: 1 November 1983
...Philip E. Coyer ABSTRACT Exposure of 10 R3-R13 neurones to a 115-min period of hypoxia resulted in depolarization of their membrane potentials (E M ) from a mean of −46·9 ± 3·1 to −20·8 ± 4·4mV (S.E.). Intracellular potassium ion activities decreased significantly from 118·9 ± 5·1 to 67·7 ± 8·5 m m...
Journal Articles
Effects of Potassium and Osmolality on Spermatozoan Motility of Salmonid Fishes
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Journal:
Journal of Experimental Biology
J Exp Biol (1983) 107 (1): 105–113.
Published: 1 November 1983
...M. Morisawa; K. Suzuki; S. Morisawa ABSTRACT In salmonid fishes, rainbow trout and masu salmon, and the plecoglossid fish, ayu, seminal plasma had an osmolality around 300 mosmol kg −1 , isotonic to the blood plasma, and contained a higher concentration of potassium than the blood plasma...
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