Letter | Published:

Metabolic Fate of 2,4-Dichlorophenoxyacetic Acid in the Stem Tissue of Phaseolus vulgaris

Nature volume 204, pages 884885 (28 November 1964) | Download Citation



IN this Department previous investigations1,2 of the metabolic fate of a series of chlorinated phenoxyacetic acids in stem tissues of Avena sativa have demonstrated that the formation of glucose esters or hydroxylation followed by conversion to a glucoside are major pathways. In this tissue 2,4-dichlorophenoxyacetic acid (2,4-D) is converted principally into 1-0-(2,4-dichlorophenoxyacetyl)-β-D-glucose. In contrast, in the stems of Phaseolus vulgaris the principal metabolite isolated was seemingly a glucoside of a phenolic acid3 which was not a hydroxy-2,4-dichlorophenoxyacetic acid3–5. Further investigation has identified the presence of a mixture of 2,5-dichloro-4-hydroxyphenoxyacetic acid and 2,3-dichloro-4-hydroxyphenoxyacetic acid.

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    , , and , Nature, 199, 73 (1963).

  2. 2.

    , , and , Nature, 204, 286 (1964).

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    , D.Phil. thesis, Univ. Oxford (1964).

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    , Arch. Biochem. Biophys., 35, 171 (1952).

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    , J. Agric. Food Chem., 12, 3 (1964).

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    , and , Nature, 203, 865 (1964).

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    , and , J. Amer. Chem. Soc., 45, 2204 (1923).

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  1. Department of Agriculture, University of Oxford.

    • E. W. THOMAS
    •  & B. C. LOUGHMAN
  2. Agricultural Research Council, Unit of Experimental Agronomy, Oxford.

    • R. G. POWELL


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