J Integr Plant Biol. ›› 2010, Vol. 52 ›› Issue (1): 17-27.DOI: 10.1111/j.1744-7909.2010.00901.x

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Transcriptional Regulation of Secondary Growth and Wood Formation

Juan Du and Andrew Groover*   

  1. Institute of Forest Genetics, US Forest Service, Davis, California 95618, USA
  • Received:2009-09-29 Accepted:2009-10-16 Published:2010-01-01
  • About author:*Author for correspondence Tel: +1 530 758 1739; Fax: +1 530 747 0241; E-mail: agroover@fs.fed.us doi: 10.1111/j.1744-7909.2010.00901.x


Secondary growth and wood formation are products of the vascular cambium, a lateral meristem. Although the mechanisms have only recently begun to be uncovered, transcriptional regulation appears
increasingly central to the regulation of secondary growth. The importance of transcriptional regulation is illustrated by the correlation of expression of specific classes of genes with related biological processes occurring at specific stages of secondary growth, including cell division, cell expansion, and cell differentiation. At the same time, transcription factors have been characterized that affect specific aspects of secondary growth, including regulation of the cambium and differentiation of cambial daughter cells. In the present review, we summarize evidence pointing to transcription as a major mechanism for regulation of secondary growth, and outline future approaches for comprehensively describing transcriptional networks underlying secondary growth.

Du J, Groover A (2010) Transcriptional regulation of secondary growth and wood formation. J. Integr. Plant Biol. 52(1), 17–27.

Key words: Populus, cambium differentiation, secondary growth, transcription factors

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