Mutations in the AXR3 gene of Arabidopsis result in altered auxin response including ectopic expression from the SAUR-AC1 promoter.

@article{Leyser1996MutationsIT,
  title={Mutations in the AXR3 gene of Arabidopsis result in altered auxin response including ectopic expression from the SAUR-AC1 promoter.},
  author={H. M. Ottoline Leyser and F. Bryan Pickett and Suni Dharmasiri and Mark Estelle},
  journal={The Plant journal : for cell and molecular biology},
  year={1996},
  volume={10 3},
  pages={403-13}
}
A new auxin response gene in Arabidopsis called AXR3 has been identified. This gene is defined by two semi-dominant mutations which affect many auxin-regulated developmental processes. Auxin has been shown to maintain apical dominance, inhibit root elongation, stimulate adventitious rooting, mediate root gravitropism, and stimulate transcription from the SAUR-AC1 promoter. Mutant axr3 plants show enhanced apical dominance, reduced root elongation, increased adventitious rooting, no root… CONTINUE READING
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