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Keywords: Ca2+
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Journal Articles
J Exp Biol (2012) 215 (4): 630–641.
Published: 15 February 2012
.... Statistical tests were performed using Student’s t-tests. The calculated concentration of calcium ions in the media was <10–10 mol l–1. The concentration of free Ca2+ was calculated by the algorithms published by Goldstein (Goldstein, 1979). Values are means ± s.e.m. N=4. In the case of chum salmon...
Journal Articles
Journal Articles
J Exp Biol (2005) 208 (6): 1117–1124.
Published: 15 March 2005
... treatments are indicated by differing letters (LSM,Student's post-hoc t -test). Fig. 3. Plasma concentrations of (A) Ca2+, (B) Mg2+ and (C)Pi in controls, after 2 h anoxia and after exhaustive exercise in leopard frogs at 15°C. Values are means ± s.e.m., N=6 per treatment for each ion. Differences between...
Journal Articles
J Exp Biol (2004) 207 (2): 337–345.
Published: 15 January 2004
... ± s.d. ( N =5 in A; N =7 in B). * Significantly different( P <0.01). Fig. 4. Effect of (A) cAMP (10 μmol l-1), cGMP (10 μmol l-1), Ca2+ (10-4 mol l-1 free Ca2+) and reactivation solution (B) various concentrations of Ca2+ on reactivation of sperm motility in demembranated sperm. The demembranated...
Journal Articles
J Exp Biol (2003) 206 (7): 1163–1170.
Published: 1 April 2003
... . Fig. 6. Ciliary reversal in response to UV application. Light was applied to the cilia at the anterior of a cell loaded with NP-EGTA in Ca2+-containing medium. (A) A representative result in which the distance l (see Fig. 5) is zero. This series of images are indicated in Movie 2. (B)The distance l...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2003) 206 (5): 913–921.
Published: 1 March 2003
... of seminal plasma, i.e. isotonic osmolality. Values are means ± S.D.; N =150 sperm from 5 fish for each point. Fig. 1. Effects of osmolality and extracellular [Ca2+] on motility in sperm of tilapia Oreochromis mossambicus. Sperm were suspended in solutions of 10 mmoll-1 Hepes-NaOH, pH 8.0, containing...
Journal Articles
In collection:
Cardiology articles
J Exp Biol (2002) 205 (22): 3535–3541.
Published: 15 November 2002
...)indicating an increase in the intracellular Ca2+ concentration of a single caudal heart muscle fibre associated with depolarisation produced by an increase in the external K+ concentration to 100 mmol l-1 at the time marked by arrow. The fibres had been loaded with fluo-3 by immersing in 0Ca2+-ASW containing...
Journal Articles
J Exp Biol (2002) 205 (18): 2755–2764.
Published: 15 September 2002
...×350. Fig. 5. Ca2+-sensing receptors (Ca-SR) in goldfish olfactory epithelium.(A) Immunocytochemistry with rabbit antiserum to an epitope of the external domain of puffer fish Ca-SR. There is a relatively low concentration of receptors in the cells of the outermost layer of the epithelium (e...
Journal Articles
In collection:
Cardiology articles
J Exp Biol (2002) 205 (13): 1881–1888.
Published: 1 July 2002
...+ . A dagger indicates a value significantly different from the value at 3.7 mmol l -1 Ca 2+ . Fig. 2. Effects of external [Ca2+] on cardiac parameters recorded from spontaneously beating yellowfin tuna hearts in situ at 20°C. Data shown are for standard conditions (Heart rate), maximum flow (Stroke volume...
Journal Articles
J Exp Biol (1991) 156 (1): 173–185.
Published: 1 March 1991
... Limited 1991 THE DISCHARGE OF IN SITU NEMATOCYSTS OF THE ACONTIA OF AIPTASIA MUTABILIS IS A Ca2+-INDUCED RESPONSE BY GIUSEPPE SANTORO AND ALBERTO SALLEO Institute of General Physiology, University of Messina, Via Sperone 31, 98010 Messina, Italy Accepted 11 September 1990 Summary The ionic events leading...
Journal Articles
J Exp Biol (1989) 145 (1): 255–262.
Published: 1 September 1989
... concentration ([Ca2+]o) on the light sensitivity of isolated single rods from the retina of the frog (Rana catesbeiana) were investigated by sucking the rod inner segments into tightly fitting pipettes. Light flashes (500nm, I s duration) evoked transient outward changes of membrane current (photoresponses...
Journal Articles
J Exp Biol (1988) 140 (1): 171–186.
Published: 1 November 1988
... BJORNSSON Department of Zoophysiology, University of Goteborg, PO Box 250 59, S-400 31 Goteborg, Sweden Accepted 20 April 1988 Summary An in vitro technique for perfusion of the intestinal vasculature and lumen was developed and used to measure calcium (Ca2+) fluxes across the intestinal mucosa...
Journal Articles
J Exp Biol (1987) 131 (1): 107–115.
Published: 1 September 1987
... by Company of Biologists 1987 Paramedum bursaria photoreceptor membrane potential action spectrum Ca 2+ J. exp. Biol 131, 107-115 (1987) 107 tPn'iited in Great Britain © The Company of Biologists Limited 1987 Ca2+-DEPENDENT PHOTORECEPTOR POTENTIAL IN PARAMECIUM BURSARIA BY YASUO NAKAOKA...
Journal Articles
J Exp Biol (1986) 125 (1): 71–84.
Published: 1 September 1986
.... The effects of cations (H + , Na+, K + , Ca2+, Mg2+) on the mechanical properties of the catch connective tissue in the dermis of a sea cucumber, Holothuria leucospilota Brandt, were studied. 2. The manipulation of the ionic environment caused rapid (apparent in minutes) and reversible viscosity change. 3...
Journal Articles
J Exp Biol (1984) 108 (1): 179–194.
Published: 1 January 1984
...). Negative temperature shifts reduce the ^equency and alter the direction of ciliary beating (Machemer, 1972) presumably due Key words: Temperature, membrane potential, membrane currents, Ca2*, Paramecium. 180 B. MARTINAC AND H. MACHEMER to an interference with active calcium extrusion (Browning & Nelson...