Abstract
THE discovery by one of us1 of the selective herbicidal activity of 3,5-diiodo-4-hydroxybenzonitrile (ioxynil) and its dibromo- analogue (bromoxynil) has led here to a number of other developments. Thus the high activity of these compounds in uncoupling oxidative phosphorylation2 resulted in the finding that they are potent molluscicides1. Again, the demonstration that iodide ion is liberated when ioxynil is metabolized in soils and plants led to the discovery that inorganic iodides are useful and highly selective herbicides3. A further development from the ioxynil work was the examination of certain 2,6-disubstituted phenols as plant growth regulators4. Some of these were found to be highly active and equal to 2,4-dichlorophenoxyacetic acid (2,4-D) in certain tests5. We now report another development from our research on ioxynil.
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References
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WAIN, R., TAYLOR, H., INTARAKOSIT, P. et al. Halogen Derivatives of 4-Hydroxybenzoic Acid as Root Growth Stimulants and the Importance of Light in this Response. Nature 217, 870–871 (1968). https://doi.org/10.1038/217870a0
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DOI: https://doi.org/10.1038/217870a0
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