Two types of parenchymal cells in the lung fluke Paragonimus ohirai (digenea: Troglotrematidae) characterized by the cytochemistry of their mitochondria

Morphology and respiratory function were studied in situ and in the isolated mitochondria of Paragonimus ohirai. Two types of parenchymal cells (i.e., Pcl and Pc2 cells), whose mitochondria differ in terms of morphology and staining for cytochrome c oxidase activity, were found in fluke tissues. Enz...

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Bibliographic Details
Published in:Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 1996-02, Vol.113 (2), p.387-394
Main Authors: Fujino, Takahiro, Takamiya, Shinzaburo, Fukuda, Koichi, Aoki, Takashi
Format: Article
Language:English
Subjects:
aerobic and anaerobic mitochondria
Animals
Brackish
cytochemistry
cytochrome c oxidase
Cytochromes - metabolism
facultative anaerobe
Kinetics
Marine
Microscopy, Electron
Mitochondria - metabolism
Mitochondria - ultrastructure
Oxygen Consumption
Paragonimus - cytology
Paragonimus - metabolism
Paragonimus - ultrastructure
Paragonimus ohirai
parenchymal cells
Rats
Rats, Sprague-Dawley
respiratory chain
Sesarma dehaani
Submitochondrial Particles - metabolism
Thermodynamics
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Summary:Morphology and respiratory function were studied in situ and in the isolated mitochondria of Paragonimus ohirai. Two types of parenchymal cells (i.e., Pcl and Pc2 cells), whose mitochondria differ in terms of morphology and staining for cytochrome c oxidase activity, were found in fluke tissues. Enzymatic and spectrophotometric analyses of the isolated mitochondria showed that fluke mitochondria possess both aerobic and anaerobic respiratory chains. These results suggest that there are two mitochondrial populations in fluke parenchymal cells, one possessing an aerobic respiratory chain and the other an anaerobic respiratory chain.
ISSN:1096-4959
0305-0491
1879-1107
DOI:10.1016/0305-0491(95)02056-X