Cation-induced efflux of calcium from the mitochondria of Hymenolepis diminuta

We have previously reported that Ca2+ influx into the mitochondria of Hymenolepis diminuta, a rat intestinal cestode, takes place through an electrophoretic uniport system. Sodium and lithium were found to induce efflux of 45Ca2+ from the mitochondria of H. diminuta. The two cations induced the effl...

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Bibliographic Details
Published inCell biochemistry and function Vol. 13; no. 3; p. 227
Main Authors Wani, J H, Siddiqui, A, Srivastava, V M
Format Journal Article
LanguageEnglish
Published England 01.09.1995
Subjects
Animals
Calcium - metabolism
Calcium Chloride - metabolism
Cations - metabolism
Hymenolepis
Lithium - metabolism
Mitochondria - metabolism
Rats
Rats, Sprague-Dawley
Sodium - metabolism
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Summary:We have previously reported that Ca2+ influx into the mitochondria of Hymenolepis diminuta, a rat intestinal cestode, takes place through an electrophoretic uniport system. Sodium and lithium were found to induce efflux of 45Ca2+ from the mitochondria of H. diminuta. The two cations induced the efflux in a hyperbolic and linear fashion, respectively. The efflux as well as an exchange of external Ca2+ with internal 45Ca2+ was inhibited by lanthanum. The type of Ca2+ transport system in the cestode organelle has been discussed and compared with that of the host (mammalian) counterpart.
ISSN:0263-6484
DOI:10.1002/cbf.290130314