Dynamic changes in transcriptome and cell wall composition underlying brassinosteroid‑mediated lignification of switchgrass suspension cells

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This article provides an overview of the dynamic compositional changes during brassinosteroid-induced cell wall remodeling, and identifies candidate genes for future plant genetic engineering to overcome cell wall recalcitrance.

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18 p.

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Rao, Xiaolan; Shen, Hui; Pattathil, Sivakumar; Hahn, Michael G.; Gelineo-Albersheim, Ivana; Mohnen, Debra et al. November 30, 2017.

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This article is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Arts and Sciences to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 84 times , with 18 in the last month . More information about this article can be viewed below.

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  • Rao, Xiaolan University of North Texas; Oak Ridge National Laboratory

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  • Shen, Hui University of North Texas; Chromatin Inc.

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This article provides an overview of the dynamic compositional changes during brassinosteroid-induced cell wall remodeling, and identifies candidate genes for future plant genetic engineering to overcome cell wall recalcitrance.

Physical Description

18 p.

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Abstract
Background: Plant cell walls contribute the majority of plant biomass that can be used to produce transportation fuels. However, the complexity and variability in composition and structure of cell walls, particularly the presence of lignin, negatively impacts their deconstruction for bioenergy. Metabolic and genetic changes associated with secondary wall development in the biofuel crop switchgrass (Panicum virgatum) have yet to be reported.
Results: Our previous studies have established a cell suspension system for switchgrass, in which cell wall lignification can be induced by application of brassinolide (BL). We have now collected cell wall composition and microarraybased transcriptome profiles for BL-induced and non-induced suspension cultures to provide an overview of the dynamic changes in transcriptional reprogramming during BL-induced cell wall modification. From this analysis, we have identified changes in candidate genes involved in cell wall precursor synthesis, cellulose, hemicellulose, and pectin formation and ester-linkage generation. We have also identified a large number of transcription factors with expression correlated with lignin biosynthesis genes, among which are candidates for control of syringyl (S) lignin accumulation.
Conclusion: Together, this work provides an overview of the dynamic compositional changes during brassinosteroid-induced cell wall remodeling, and identifies candidate genes for future plant genetic engineering to overcome cell wall recalcitrance.

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  • Biotechnology for Biofuels, 2017. London, UK: BioMed Central Ltd.

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Publication Information

  • Publication Title: Biotechnology for Biofuels
  • Volume: 10
  • Pages: 1-18
  • Peer Reviewed: Yes

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Submitted Date

  • August 8, 2017

Accepted Date

  • November 2, 2017

Creation Date

  • November 30, 2017

Added to The UNT Digital Library

  • Dec. 14, 2017, 11:26 a.m.

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Rao, Xiaolan; Shen, Hui; Pattathil, Sivakumar; Hahn, Michael G.; Gelineo-Albersheim, Ivana; Mohnen, Debra et al. Dynamic changes in transcriptome and cell wall composition underlying brassinosteroid‑mediated lignification of switchgrass suspension cells, article, November 30, 2017; London, United Kingdom. (digital.library.unt.edu/ark:/67531/metadc1049706/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.