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Substances Controlling the Growth of a Diatom

Published online by Cambridge University Press: 11 May 2009

H. W. Harvey
Affiliation:
Hydrographer at the Plymouth Laboratory

Extract

The diatom Ditylum brightwelli requires, for vigorous growth in artificial sea water, two organic substances, or groups of substances, in addition to inorganic salts. The substances, or groups, act in a manner complementary to each other.

The effect of adding either is greatly increased by the presence of the other.

One accessory substance, or group, has been obtained in impure state from natural sea water and from extracts of algae by adsorption on carbon and elution. It has properties of an inorganic acid or internal anhydride.

Information

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1939

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