Letter | Published:

Relation of Structure of 2,4-Dichloro-phenoxyacetate to its Mode of Action as an Auxin

Naturevolume 180pages13651366 (1957) | Download Citation



Heath and Clark1 have proposed a possible mechanism for the mode of action of auxin which involves interference with metal ion metabolism. This conclusion was based on work involving the growth stimulation of wheat coleoptile sections. They found a particularly interesting relationship between many known chelators of various molecular structure and their ability to act as growth substances. These workers extended their findings on this relationship of chelators and growth stimulation with root-growth experiments2.

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    Heath, O. V. S., and Clark, J. E., Nature, 178, 600 (1956).

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    Johnson, Emmett J., and Colmer, Arthur R., J. Bacteriol., 73, 139 (1957).

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    Johnson, Emmett J., and Colmer, Arthur R., J. Bacteriol., 73, 666 (1957).

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    Johnson, Emmett J., and Colmer, Arthur R., “Antibiotics and Chemotherapy” (in the press).

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    Lehninger, A. L., “Harvey Lectures” (Academic Press, New York, 1953–54).

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    Umbreit, W. W., Burris, R. H., and Stauffer, J. F., “Manometric Technique and Tissue Metabolism” (Burgess Publishing Co., Minneapolis, Minn., 1949).

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    Zimmerman, P. W., and Hitchcock, A. E., Contrib. Boyce Thompson Inst., 12, 321 (1942).

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    Soncin, E., Arch. Int. Pharmacodyn et Therapie, 94, 346 (1953).

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    Present address: Department of Medical Microbiology, Stanford University, California


  1. Department of Botany, Bacteriology and Plant Pathology, Louisiana State University, Baton Rouge, Louisiana



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