Cytochemical and biochemical observations on the digestive tracts of digenetic trematodes. IX. Megalodiscus temperatus.

摘要: Abstract Morphological and cytochemical studies employing the electron microscope were conducted on digestive tract of Megalodiscus temperatus. The consisted two regions: foregut ceca. foregut, characterized by a lining continuous with general tegument organism, appeared to be primarily ingestive sensory in function. latter function was confined pharyngeal pouches whose linings contained numerous structures. cecal region syncytial gastrodermis, luminal surface which thrown into microvilli composing prominent brush border. Alkaline acid phosphatase (EC 3.1.3.1, EC 3.1.3.2) activities as well glucosaminidase 3.2.1.29) activity associated Numerous Golgi complexes observed results from test for macromolecular diglycols suggested that they responsible elaboration carbohydrate-containing secretions. main component diet organism blood. There some evidence iron portion hemoglobin molecule regurgitated soluble compound.