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- Title
FCA does not bind abscisic acid.
- Authors
Risk, Joanna M; Macknight, Richard C; Day, Catherine L
- Abstract
The RNA-binding protein FCA promotes flowering in Arabidopsis. Razem et al. 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 receptors, 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.
- Publication
Nature, 2008, Vol 456, Issue 7223, pE5
- ISSN
1476-4687
- Publication type
Journal Article
- DOI
10.1038/nature07646