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The osmotic relations of the plankton diatom Ditylum brightwelli (West.)

Published online by Cambridge University Press:  11 May 2009

F. Gross
F. Gross
Affiliation:
From the Plymouth Laboratory and Department of Zoology, Edinburgh University
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Extract

During resting spore formation Ditylum loses the cell sap and the volume of the resulting resting spore is one-third to one-twentieth of the cell volume.

Ditylum plasmolyses in 3·5–I.7% NaCl solutions, and in a few seconds the protoplast is reduced to the size and structure of a resting spore. In 0·5% NaCl there also occurs a considerable reduction in volume. The plasmolysed cells recover completely when removed into sea water. Rapid plasmolysis was also observed in isotonic and hypotonic dextrose and sucrose solutions and in solutions of CaCl2.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 24 , Issue 1 , January 1940 , pp. 381 - 415
Copyright
Copyright © Marine Biological Association of the United Kingdom 1940

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References

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