Diphyllobothrium dendriticum (Cestoda: Diphyllobothriidae) in the intestinal tract of the herring gull Larus argentatus: Localization and trophic parameters
We studied the activities both of digestive enzymes in the small intestine of the herring gull ( Larus argentatus ) and a tapeworm Diphyllobothrium dendriticum (Cestoda: Diphyllobothriidae) residing in the intestine. It was found that D. dendriticum infects the medial section of the small intestine...
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Veröffentlicht in: | Biology bulletin of the Russian Academy of Sciences 2016-07, Vol.43 (4), p.329-334 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | We studied the activities both of digestive enzymes in the small intestine of the herring gull (
Larus argentatus
) and a tapeworm
Diphyllobothrium dendriticum
(Cestoda: Diphyllobothriidae) residing in the intestine. It was found that
D. dendriticum
infects the medial section of the small intestine of the herring gull. Such localization of
D. dendriticum
is caused by the maximal activity of proteases and glycosidases and by the high rate of membrane and cavitary digestion in this section. The activity of protease and glycosidase in gulls infected with
D. dendriticum
is decreased. The activity of proteases in the fractions desorbed from the tegument surface of
D. dendriticum
is significantly higher than that of glycosidases. |
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ISSN: | 1062-3590 1608-3059 |
DOI: | 10.1134/S1062359016040063 |