Class I KNOX transcription factors promote differentiation of cambial derivatives into xylem fibers in the Arabidopsis hypocotyl.

@article{Liebsch2014ClassIK,
  title={Class I KNOX transcription factors promote differentiation of cambial derivatives into xylem fibers in the Arabidopsis hypocotyl.},
  author={Daniela Liebsch and Widi Sunaryo and Mattias Holmlund and Mikael Norberg and Jing Zhang and Hardy C. Hall and Hanna Helizon and Xu Jin and Yk{\"a} Helariutta and Ove Nilsson and Andrea Polle and Urs Fischer},
  journal={Development},
  year={2014},
  volume={141 22},
  pages={4311-9}
}
The class I KNOX transcription factors SHOOT MERISTEMLESS (STM) and KNAT1 are important regulators of meristem maintenance in shoot apices, with a dual role of promoting cell proliferation and inhibiting differentiation. We examined whether they control stem cell maintenance in the cambium of Arabidopsis hypocotyls, a wood-forming lateral meristem, in a similar fashion as in the shoot apical meristem. Weak loss-of-function alleles of KNAT1 and STM led to reduced formation of xylem fibers… CONTINUE READING
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