NAC-MYB-based transcriptional regulation of secondary cell wall biosynthesis in land plants
Yoshimi Nakano,Masatoshi Yamaguchi,Masatoshi Yamaguchi,Hitoshi Endo,Nur Ardiyana Rejab,Nur Ardiyana Rejab,Misato Ohtani +6 more
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TLDR
Focusing on the NAC-MYB-based transcriptional network, this review discusses the regulatory systems that evolved in land plants to modify the cell wall to serve as a key component of structures that conduct water and provide mechanical support.Abstract:
Plant cells biosynthesize primary cell walls in all cells and produce secondary cell walls (SCWs) in specific cell types that conduct water and/or provide mechanical support, such as xylem vessels and fibers. The characteristic mechanical stiffness, chemical recalcitrance, and hydrophobic nature of SCWs result from the organization of SCW-specific biopolymers, i.e., highly ordered cellulose, hemicellulose, and lignin. Synthesis of these SCW-specific biopolymers requires SCW-specific enzymes that are regulated by SCW-specific transcription factors. In this review, we summarize our current knowledge of the transcriptional regulation of SCW formation in plant cells. Advances in research on SCW biosynthesis during the past decade have expanded our understanding of the transcriptional regulation of SCW formation, particularly the functions of the NAC and MYB transcription factors. Focusing on the NAC-MYB-based transcriptional network, we discuss the regulatory systems that evolved in land plants to modify the cell wall to serve as a key component of structures that conduct water and provide mechanical support.read more
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A Natural Allele of a Transcription Factor in Rice Confers Broad-Spectrum Blast Resistance.
Weitao Li,Ziwei Zhu,Mawsheng Chern,Mawsheng Chern,Junjie Yin,Chao Yang,Li Ran,Mengping Cheng,Min He,Kang Wang,Jing Wang,Xiaogang Zhou,Xiaobo Zhu,Zhixiong Chen,Jichun Wang,Wen Zhao,Wen Zhao,Bingtian Ma,Peng Qin,Weilan Chen,Yuping Wang,Jiali Liu,Wenming Wang,Xianjun Wu,Ping Li,Jirui Wang,Lihuang Zhu,Shigui Li,Xuewei Chen +28 more
TL;DR: The identification of a natural allele of a C2H2-type transcription factor in rice that confers non-race-specific resistance to blast is reported, highlighting this novel allele as a strategy for breeding durable resistance in rice.
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Biosynthesis and Regulation of Phenylpropanoids in Plants
Yuxing Deng,Shanfa Lu +1 more
TL;DR: Phenylpropanoids are a large class of plant secondary metabolites derived from aromatic amino acids phenylalanine in most plants or tyrosine in partial monocots as discussed by the authors.
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Regulation of Lignin Biosynthesis and Its Role in Growth-Defense Tradeoffs.
Meng Xie,Meng Xie,Jin Zhang,Timothy J. Tschaplinski,Gerald A. Tuskan,Jin-Gui Chen,Wellington Muchero +6 more
TL;DR: The canonical lignin biosynthesis pathway, the recently discovered tyrosine shortcut pathway, and the biosynthesis of unconventional C-lignin are reviewed and the existence of a transcriptional co-regulation mechanism coordinating energy allowance among growth, defense and lignIn biosynthesis is proposed.
Journal ArticleDOI
Secondary cell walls: biosynthesis and manipulation
TL;DR: This review will attempt to highlight the most recent progress in understanding the biosynthetic pathways for secondary cell wall components, how these pathways are regulated, and how this knowledge may be exploited to improve cell wall properties that facilitate breakdown without compromising plant growth and productivity.
Journal ArticleDOI
The cell biology of secondary cell wall biosynthesis.
TL;DR: This review puts SCW biosynthesis in a cellular context, with the aim of integrating molecular biology and biochemistry with plant cell biology, and reflects the fact that protoxylem tracheary elements have proven to be the most amenable experimental system in which to study the cell biology of SCWs.
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