Abstract
IT has been recently demonstrated that the two stereoisomeric forms of certain α-aryloxypropionic acids can differ widely in their capacity to induce growth responses in plants. Thus, for example, the (+)-forms of α-(2-naphthoxy)-, α-(2 : 4-dichlorophenoxy)- and α-(2 : 4 : 5-trichlorophenoxy)-propionic acids possess high growth-regulating activity, whereas the (−)-isomers possess only negligible activity. The (±)-acids give an intermediate response in the tests employed1,2.
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References
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Osborne, D. J., and Wain, R. L., Science, 114, 92 (1951).
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SMITH, M., WAIN, R. & WIGHTMAN, F. Antagonistic Action of Certain Stereo-isomers on the Plant Growth-regulating Activity of their Enantiomorphs. Nature 169, 883–884 (1952). https://doi.org/10.1038/169883b0
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DOI: https://doi.org/10.1038/169883b0
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