Auxin overproduction in shoots cannot rescue auxin deficiencies in Arabidopsis roots.

@article{Chen2014AuxinOI,
  title={Auxin overproduction in shoots cannot rescue auxin deficiencies in Arabidopsis roots.},
  author={Qingguo Chen and Xinhua Dai and Henrique De-Paoli and Youfa Cheng and Yumiko Takebayashi and Hiroyuki Kasahara and Yuji Kamiya and Yunde Zhao},
  journal={Plant & cell physiology},
  year={2014},
  volume={55 6},
  pages={1072-9}
}
Auxin plays an essential role in root development. It has been a long-held dogma that auxin required for root development is mainly transported from shoots into roots by polarly localized auxin transporters. However, it is known that auxin is also synthesized in roots. Here we demonstrate that a group of YUCCA (YUC) genes, which encode the rate-limiting enzymes for auxin biosynthesis, plays an essential role in Arabidopsis root development. Five YUC genes (YUC3, YUC5, YUC7, YUC8 and YUC9… CONTINUE READING
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Control of Arabidopsis root development.

Annual review of plant biology • 2012
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