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XVI.—A Partial Analysis of Drosophila Larval Hæmolymph*

Published online by Cambridge University Press:  11 June 2012

Michael Begg  and
William J. Cruickshank
Michael Begg
Affiliation:
Department of Zoology, University of Aberdeen
William J. Cruickshank
Affiliation:
Department of Zoology, Birkbeck College, University of London.
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Synopsis

Physical and chemical methods of analysis suitable for volumes of Drosophila hæmolymph under I μl. are described. The osmotic pressure of hæmolymph is equivalent to 1·05 per cent NaCl. The pH is 6·6·6·7. Na+, K+, Ca2+, Mg2+, Cl− and PO3−4 occur in concentrations of 56·5, 40·2, 8, 20·8, 42·2 and 2·8 mM/1. Probably the only sugar present is trehalose. A rough analysis for amino-acids indicates that they contribute an amount to the osmotic pressure equivalent to about 0·4 per cent NaCl. These results are discussed in relation to tissue culture.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 68 , Issue 3 , 1962 , pp. 215 - 236
Copyright
Copyright © Royal Society of Edinburgh 1962

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Footnotes

*

This paper was assisted in publication by a grant from the Carnegie Trust for the Universities of Scotland.

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