Abstract
IT has been shown that coumarin derivatives are particularly active as inhibitors of germination and root-growth1–3, and it has been suggested4 that this action is at least partially due to the unsaturated lactone ring. Since other compounds, hexenolactone5,6 and protoanemonin7, containing this unsaturated lactone ring have clearly exhibited some influence on the growth of plants, it seemed interesting to test the simplest compounds having this structure. As an approach to this simple ring, several tetronic acid derivatives were selected which have been synthesized by J. Lecocq8, to whom we are indebted for the supply of the samples tested.
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References
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ALAMERCERY, J., HAMNER, C. & LATUS, M. Chlorophyll Inhibition and Growth Regulation by Several Tetronic Acid Derivatives. Nature 168, 85 (1951). https://doi.org/10.1038/168085a0
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DOI: https://doi.org/10.1038/168085a0
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