ISSN:
1573-6865
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Synopsis The distributions of acid and alkaline phosphatases, ATPase (pH 7.2), thiamine pyrophosphatase, glucose-6-phosphatase, non-specific esterase, β-glucuronidase, leucine naphthylamidase and succinate dehydrogenase in the small intestine of the normal fowl have been studied by histochemical methods. Pronounced activities of all the enzymes were found in the villous epithelium. The crypt cells were histochemically different from the mature villous absorptive cells. As they migrated towards the tops of the crypts the cells underwent a process of differentiation which, at the junctional zone between the crypt and the villus, was rapidly completed. The crypt cells showed considerable amounts of leucine naphthyl-amidase and thiamine pyrophosphatase, whereas other histochemically demonstrable enzyme activities were less evident or even absent. Slight enzymic differences were evident between the duodenum and the jejunum; β-glucuronidase was only present in the jejunum and the mitochondrial enzyme succinate dehydrogenase was less strong in the jejunum. The similarities and differences in the enzymic activities of the mucosae of the fowl and of mammals are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01011802
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