... perfusion, panel c: 8 s after perfusion and panel d: 8 s after a second perfusion (or 30 s after first perfusion without second perfusion) are shown sequentially from left to right. Arrows in the graph indicate the onset of perfusion. Scale bars, 20 μm. Fig. 4. Change in intracellular Ca2+ concentration...

... are means ± s . e . m ., N =6 per treatment for each ion. Differences between 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...

... but that of FWT was shrunken. Bars, 10 μm. For details of microscopy, see Materials and methods. Fig. 6. Changes in [Ca2+]i in SWT sperm subjected to hypotonic or hypertonic conditions, indicated by fluo-3 AM. Sperm were incubated with 500μmol l-1 fluo-3 AM in artificial seminal plasma (ASP) for 2 h...

... on the entire cell surface (cf. Fig. 7). (D) No cilium reversed their direction in response to UV application at the inner portion of the cell, although trichocyst exocytosis (t) took place, indicatingΔ[Ca2+]i at the neighboring basal bodies. After trichocyst exocytosis (t), ciliary reversal occurred...

... CaCl 2 ; open squares, NaCl + 5 mmoll -1 EGTA. Arrows indicate the osmotic pressure 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...

... mV per tenfold change in the K + concentration. Fig. 5. (A) An increase in the fluorescence intensity (ΔF/F)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...

... and the plasma free [Ca 2+ ] are also shown. Fig. 1. Olfactory responses of Carassius auratus to changes in environmental [Ca2+]. (A) Typical electroencephalogram (EEG)recordings from the olfactory bulb (lower traces) and their integrated activity (upper traces) in response to increases in [Ca2+] from...

... output) and maximum power (Power). Values are means + S.D. N =4. An asterisk indicates a value significantly different from the value at 1.8 mmol l -1 Ca 2+ . 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...

... , 683 – 708 . Charnock , J. S. , Doty , D. M. and Russell , J. C. ( 1971 ). The effect of temperature on the activity of (Na++K+)-ATPase . Archs Biochem. Biophys . 142 , 633 – 637 . Christensen , O. ( 1987 ). Mediation of cell volume regulation by Ca2+ influx...

.... ( 1992 ). Neomycin interacts with Ca2+ sensing of normal and adenomatous parathyroid cells . Molec. cell. Endocr . 83 , 211 – 218 . 10.1016/0303-7207(92)90161-X Rouse , D. and Suki , W. N. ( 1995 ). Renal control of extracellular calcium . Kidney Int . 38 , 700 – 708...