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FCA does not bind abscisic acid

Author

Listed:
  • Joanna M. Risk

    (University of Otago)

  • Richard C. Macknight

    (University of Otago)

  • Catherine L. Day

    (University of Otago)

Abstract

Arising from: Fawzi A. Razem, Ashraf El-Kereamy, Suzanne R. Abrams & Robert D. Hill Nature 439, 290–294 (2006)10.1038/nature04373 The RNA-binding protein FCA promotes flowering in Arabidopsis1. Razem et al.2 reported that FCA is also a receptor for the phytohormone abscisic acid (ABA). However, we find that FCA does not bind ABA, suggesting that the quality of the proteins assayed and the sensitivity of the ABA-binding assay have led Razem et al. to erroneous conclusions. Because similar assays have been used to characterize other ABA receptors3,4, our results indicate that the ABA-binding properties of these proteins should be carefully re-evaluated and that alternative ABA receptors are likely to be discovered.

Suggested Citation

  • Joanna M. Risk & Richard C. Macknight & Catherine L. Day, 2008. "FCA does not bind abscisic acid," Nature, Nature, vol. 456(7223), pages 5-6, December.
    • Handle: RePEc:nat:nature:v:456:y:2008:i:7223:d:10.1038_nature07646
    DOI: 10.1038/nature07646
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