Hostname: page-component-77c89778f8-gvh9x Total loading time: 0 Render date: 2024-07-20T21:41:22.010Z Has data issue: false hasContentIssue false

Physiological studies on trematodes: phosphatase systems in Gastrothylax crumenifer

Published online by Cambridge University Press:  06 April 2009

Madan M. Goil
Affiliation:
Department of Zoology, Bareilly College, Bareilly, U.P., India

Extract

Biochemical studies on the phosphatase systems of Gastrothylax crumenifer have been made. The maximum activity of the phosphatase enzyme was found to be at 5 pH. The action of magnesium and fluoride ions on the acid phosphatase activity shows that both act as inhibitors. The day-to-day variation in the phosphatase activity of the samples, as measured by block differences, was found to be significant at different pH levels. The heat denatured extract showed low and fairly constant acid phosphatase activity.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1966

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Brand, T. (1952). Chemical Physiology of Endoparasitic Animals. New York: Academic Press.Google Scholar
Dusanic, D. G. (1959). Histochemical observations of alkaline phosphatase in Schistosoma mansoni. J. infect. Dis. 105, 18.CrossRefGoogle ScholarPubMed
Erasmus, D. A. (1957). Studies on phosphatase systems of cestode. I. Studies on Taenia pisiformis (cysticercus and adult). Parasitology, 47, 7080.CrossRefGoogle ScholarPubMed
Fiske, C. H. & Subbarow, Y. (1925). The colorimetric determination of phosphorus. J. biol. Chem. 66, 375400.CrossRefGoogle Scholar
Ma, L. (1964). Acid phosphatase in Clonorchis sinensis. J. Parasit. 50, 235–40.CrossRefGoogle ScholarPubMed
Marsh, C. L. & Kelly, G. W. (1959). Studies in helminth enzymology. II. Properties of an inorganic pyrophosphatase from Ascaridia galli, a nematode parasite of chickens. Expl Parasit. 8, 274–85.CrossRefGoogle ScholarPubMed
Nimmo-Smith, R. H. & Standen, O. D. (1963). Phosphomonoesterases of Schistosoma mansoni. Expl Parasit. 13, 305–22.CrossRefGoogle Scholar
Penniot-DeCooman, E. & van Grembergen, G. (1942). Vergelijkend Onderzoek van het Fermentensystem bij vrijlevende en parasitaire Plathelminthen. Versl. Voorst. K. vlaam. Acads. wet. Belge. 4, 777.Google Scholar
Robinson, D. L. H. (1961). Phosphatases in Schistosoma mansoni. Nature, Lond. 191, 473–4.CrossRefGoogle ScholarPubMed
Swartz, M. N., Kaplan, N. O. & Frech, M. E. (1956). Significance of ‘heat activated’ enzymes. Science, N.Y. 123, 50–3.CrossRefGoogle ScholarPubMed
Tarazona Villas, J. M. (1958). Contribución al estudio de las gliceromonofosfatases en los plathelmintos parásitos. Revta ibér. Parasit. 18, 233–42.Google Scholar