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Molecular Plant Advance Access published online on April 28, 2009
Molecular Plant, doi:10.1093/mp/ssp022
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© The Author 2009. Published by the Molecular Plant Shanghai Editorial Office in association with Oxford University Press on behalf of CSPP and IPPE, SIBS, CAS.

Chromatin Remodeling in Stem Cell Maintenance in Arabidopsis thaliana

Wen-Hui Shena,1 and Lin Xua,b

a Institut de Biologie Moléculaire des Plantes (IBMP) du CNRS, Université de Strasbourg (UdS), 12 rue du Général Zimmer, 67084 Strasbourg Cédex, France
b Present address: National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China

1 To whom correspondence should be addressed. E-mail wen-hui.shen{at}ibmp-ulp.u-strasbg.fr.

Pluripotent stem cells are able to both self-renew and generate undifferentiated cells for the formation of new tissues and organs. In higher plants, stem cells found in the shoot apical meristem (SAM) and the root apical meristem (RAM) are origins of organogenesis occurring post-embryonically. It is important to understand how the regulation of stem cell fate is coordinated to enable the meristem to constantly generate different types of lateral organs. Much knowledge has accumulated on specific transcription factors controlling SAM and RAM activity. Here, we review recent evidences for a role of chromatin remodeling in the maintenance of stable expression states of transcription factor genes and the control of stem cell activity in Arabidopsis.

Key Words: chromatin structure and remodeling • epigenetics • meristem development • histone chaperone • histone modification


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