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Annu Rev Genet. 2009;43:265-85. doi: 10.1146/annurev-genet-102108-134148.

Mechanism of auxin-regulated gene expression in plants.

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  • 1Division of Biology, University of California, San Diego, La Jolla, California 92093-0116, USA.


Plant hormones control most aspects of the plant life cycle by regulating genome expression. Expression of auxin-responsive genes involves interactions among auxin-responsive DNA sequence elements, transcription factors and trans-acting transcriptional repressors. Transcriptional output from these auxin signaling complexes is regulated by proteasome-mediated degradation that is triggered by interaction with auxin receptor-E3 ubiquitin ligases such SCF(TIR1). Auxin signaling components are conserved throughout land plant evolution and have proliferated and specialized to control specific developmental processes.

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