Identification of a Cytokinin, 6-(3 Methyl-2-butenylamino) purine, in Sea Water and the Effect of Cytokinins on Brown Algae |
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Authors: | MARIANNE PEDERSEN |
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Affiliation: | Institute of Physiological Botany, University of Uppsala, Box 540, 751 21 Uppsala, Sweden |
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Abstract: | Using combined gas chromatography and mass spectrometry a growth-promoting, organic component of sea water has been quantitatively estimated and identified as the cytokinin 6-(3 methyl-2-butenylamino) purine. Additions of this cytokinin, kinetin or sea water from the Fucus-Ascophyllum zone increased the growth of Ectocarpus confervoides and Pylaiella litoralis in artificial sea water. Additions of kinetin to bacteria-free cultures of Ectocarpus fasciculatus also initiated the production of upright ectocarpoid filaments. |
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