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Identification of the Yellow Lupin Growth Inhibitor as (+)-Abscisin II ((+)-Dormin)

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Abstract

THE presence of an abscission-accelerating substance in the pods of yellow lupin (Lupinus luteus var. Weiko II) was deduced by Van Steveninck1. He was able to show that the whorls of fertilized pods at the base of the inflorescence induced the abscission of younger, distal pods. Plants infected with pea mosaic virus underwent a different pattern of abscission suggesting that the hormonal balance was disturbed2. Paper chromatography of the acids extracted from lupin pods coupled with a wheat coleoptile extension assay revealed an inhibitory band which appeared to contain the factor controlling pod abscission3.

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References

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Authors and Affiliations

  1. “Shell” Research, Ltd., Milstead Laboratory of Chemical Enzymology, Sittingbourne, Kent

    J. W. CORNFORTH, B. V. MILBORROW & G. RYBACK

  2. Agricultural Research Council, Plant Growth Substance and Systemic Fungicide Unit, Wye College, University of London, Ashford, Kent

    K. ROTHWELL & R. L. WAIN

Authors
  1. J. W. CORNFORTH
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  2. B. V. MILBORROW
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  3. G. RYBACK
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  4. K. ROTHWELL
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  5. R. L. WAIN
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CORNFORTH, J., MILBORROW, B., RYBACK, G. et al. Identification of the Yellow Lupin Growth Inhibitor as (+)-Abscisin II ((+)-Dormin). Nature 211, 742–743 (1966). https://doi.org/10.1038/211742b0

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