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Physiological studies onMarphysa gravelyi Southern V. Regulation of chlorides, sodium, potassium and total free amino acids

Physiologische Studien anMarphysa gravelyi Southern: V. Regulation von Chloriden, Natrium, Kalium und Gesamtmenge an freien Aminosäuren

Helgoländer wissenschaftliche Meeresuntersuchungen volume 12, pages 315–328 (1965)Cite this article

Kurzfassung

Der brack-wasserlebende PolychaetMarphysa gravelyi vermag alle getesteten Ionen seines Innenmediums — Chloride, Natrium, Kalium — gegenüber den im Außenmedium vorhandenen Konzentrationen dieser Ionen zu regulieren. Die quantitativen Verhältnisse zwischen Na und Cl, K und Cl, K und Na sowie zwischen (Na+Cl) und (K+Cl) werden dabei weitgehend konstant gehalten. Bei der Osmoregulation der Körperflüssigkeiten spielt offenbar auch eine intrazelluläre Regulation eine Rolle, bei welcher die Konzentration der Aminosäuren von Bedeutung ist.

Summary

1. Regulation inM. gravelyi is extended to all ions, namely, chlorides, sodium and potassium.

2. The ratios between Na to Cl, K to Cl, K to Na, and (Na+Cl) to (K+Cl) are held remarkably constant.

3. In addition to osmocentration of the body fluids,M. gravelyi also resorts to intracellular regulation in which amino acids, at least partly, are involved.

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Author notes

  1. Bhupalam Krishnamoorthi

    Present address: Central Marine Fisheries Research Unit, Waltair, Visakhapatnam-3, A. P., India

Authors and Affiliations

  1. Department of Zoology, University of Madras, Madurai Centre, Madurai-2, S India

    Bhupalam Krishnamoorthi & S. Krishnaswamy

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  1. Bhupalam Krishnamoorthi
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  2. S. Krishnaswamy
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Additional information

This paper represents part of a thesis accepted for the award of the Ph. D. degree of the University of Madras, to the senior author.

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Krishnamoorthi, B., Krishnaswamy, S. Physiological studies onMarphysa gravelyi Southern V. Regulation of chlorides, sodium, potassium and total free amino acids. Helgolander Wiss. Meeresunters 12, 315–328 (1965). https://doi.org/10.1007/BF01880937

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Helgoland Marine Research

ISSN: 1438-3888

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