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Curr Opin Plant Biol. 2003 Oct;6(5):463-9.

Impacts of altered RNA metabolism on abscisic acid signaling.

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Division of Biological Sciences, Cell and Developmental Biology Section, and Center for Molecular Genetics, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0116, USA.


The plant hormone abscisic acid (ABA) regulates many essential processes in growth and development. The recent characterization of ABA-sensitivity mutations in RNA-binding proteins has led to the recognition of a functional link between post-transcriptional mRNA processing and the ABA signal transduction machinery. By influencing transcript abundance, these RNA-binding proteins may modulate ABA signaling through the alteration of mRNA processing events such as splicing, 3' processing, nuclear export, transcript stability and RNA degradation.

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