J Integr Plant Biol. ›› 2013, Vol. 55 ›› Issue (4): 389-394.DOI: 10.1111/jipb.12044

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CLE Peptides in Vascular Development

Yi Qiang, Jinbin Wu, Huibin Han and Guodong Wang*   

  1. Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi’an 710062, China
  • Received:2013-01-30 Accepted:2013-03-04 Published:2013-04-10
  • About author:*Corresponding author Tel: +86 29 8531 0583; Fax: +86 29 8531 0623; E-mail: guodong_wang@snnu.edu.cn

Abstract:

The plant vascular system consists of two conductive tissues, phloem and xylem. The vascular meristem, namely the (pro-)cambium, is a stem-cell tissue that gives rise to both xylem and phloem. Recent studies have revealed that CLAVATA3/Embryo Surrounding Region-related (CLE) peptides function in establishing the vascular system through interaction with phytohormones. In particular, TDIF/CLE41/CLE44, phloem-derived CLE peptides, promote the proliferation of vascular cambium cells and prevent them from differentiating into xylem by regulating WOX4 expression through the TDR/PXY receptor. In this review article, we outline recent advances on how CLE peptides function in vascular development in concert with phytohormones through mediating cell-cell communication. The perspective of CLE peptide signaling in vascular development is also discussed.

Qiang Y, Wu J, Han H,Wang G (2013) CLE peptides in vascular development. J. Integr. Plant Biol. 55(4), 389–394.

Key words: CLE peptide, vascular development, (pro-)cambium, xylem, phytohormone, Arabidopsis

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