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An Arabidopsis gene regulatory network for secondary cell wall synthesis

Academic Article
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Overview

authors

  • Taylor-Teeples, M.
  • Lin, L.
  • de Lucas, M.
  • Turco, G.
  • Toal, T. W.
  • Gaudinier, A.
  • Young, N. F.
  • Trabucco, G. M.
  • Veling, M. T.
  • Lamothe, R.
  • Handakumbura, P. P.
  • Xiong, G.
  • Wang, C.
  • Corwin, J.
  • Tsoukalas, A.
  • Zhang, L.
  • Ware, D.
  • Pauly, M.
  • Kliebenstein, D. J.
  • Dehesh, K.
  • Tagkopoulos, I.
  • Breton, G.
  • Pruneda-Paz, J. L.
  • Ahnert, S. E.
  • Kay, Steve A.
  • Hazen, S. P.
  • Brady, S. M.

publication date

  • January 2015

journal

  • Nature  Journal

abstract

  • The plant cell wall is an important factor for determining cell shape, function and response to the environment. Secondary cell walls, such as those found in xylem, are composed of cellulose, hemicelluloses and lignin and account for the bulk of plant biomass. The coordination between transcriptional regulation of synthesis for each polymer is complex and vital to cell function. A regulatory hierarchy of developmental switches has been proposed, although the full complement of regulators remains unknown. Here we present a protein-DNA network between Arabidopsis thaliana transcription factors and secondary cell wall metabolic genes with gene expression regulated by a series of feed-forward loops. This model allowed us to develop and validate new hypotheses about secondary wall gene regulation under abiotic stress. Distinct stresses are able to perturb targeted genes to potentially promote functional adaptation. These interactions will serve as a foundation for understanding the regulation of a complex, integral plant component.

subject areas

  • Arabidopsis
  • Arabidopsis Proteins
  • Cell Wall
  • DNA, Plant
  • E2F Transcription Factors
  • Feedback
  • Gene Expression Regulation, Developmental
  • Gene Expression Regulation, Plant
  • Gene Regulatory Networks
  • Iron
  • Organ Specificity
  • Promoter Regions, Genetic
  • Reproducibility of Results
  • Salinity
  • Time Factors
  • Transcription Factors
  • Xylem
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Identity

PubMed Central ID

  • PMC4333722

International Standard Serial Number (ISSN)

  • 0028-0836

Digital Object Identifier (DOI)

  • 10.1038/nature14099

PubMed ID

  • 25533953
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Additional Document Info

start page

  • 571

end page

  • 575

volume

  • 517

issue

  • 7536

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