Intracellular pH regulation in isolated hepatopancreas cells from the roman snail (Helix pomatia)
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چکیده
منابع مشابه
Aerobic metabolism of the hepatopancreas of Helix pomatia.
The presence ofthe tricarboxylic-acid cycle (Krebs's cycle) has been demonstrated in most mammalian tissues investigated (Krebs & Johnson, 1937; Green, Loomis & Auerbach, 1948), where it appears to be the major pathway for the oxidation of carbohydrate, fat and protein intermediaries. No detailed examinations have been made in the invertebrates. However, evidence has been presented of Krebs's c...
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Cells isolated from the hepatopancreas of the land snail Helix aspersa strongly depress respiration both immediately in response to lowered P(O2) (oxygen conformation) and, in the longer term, during aestivation. These phenomena were analysed by dividing cellular respiration into non-mitochondrial and mitochondrial respiration using the mitochondrial poisons myxothiazol, antimycin and azide. No...
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To evaluate ion transport mechanisms in bile duct epithelium (BDE), BDE cells were isolated from bile duct-ligated rats. After short-term culture pHi was measured with a single cell microfluorimetric set-up using the fluorescent pHi indicator BCECF, and calibrated with nigericin in high K+ concentration buffer. Major contaminants were identified using vital markers. In HCO3(-)-free media, basel...
متن کاملThe circulatory physiology of Helix pomatia. II. The isolated heart.
This work was undertaken to study the mechanical factors affecting the function of the isolated heart of Helix pomatia in order to help understand the variations in heart activity observed in intact animals. Biedermann (1884), working upon the isolated heart of Helix, observed that the frequency of beat increased with distension of the heart. Biering (1929) found that in the isolated Helix hear...
متن کاملInfluence of photoperiod on the behavioral response to olfactory stimulation in the snail Helix pomatia L.
An ethanol vapor concentration of 1.6 mmol/l was used to test the diurnal variations of the olfactory response in two groups of snails, which were adapted to different light-dark cycles. The results revealed that the olfactory sensitivity to stimulation with ethanol was significantly increased during the day-time, which corresponds to the scotophase of the light-dark cycle, to which the animals...
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ژورنال
عنوان ژورنال: Journal of Experimental Zoology
سال: 2003
ISSN: 0022-104X,1097-010X
DOI: 10.1002/jez.a.20001