Common Mechanism of Lignification of Compression Wood in Conifers and &amp;lt;i&amp;gt;Buxus&amp;lt;/i&amp;gt;

Hiraide, Hideto; Yoshida, Masato; Sato, Saori; Yamamoto, Hiroyuki

doi:10.4236/ajps.2016.77110

Cited by 3 publications

(2 citation statements)

References 31 publications

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“…Opposite wood of CW has tensile stress values similar or slightly larger than NW. The CW is typically found in gymnosperm species, although it has been also observed in angiosperms such as Buxus [33][34][35] and some primitive angiosperm species [36,37]. Within species, there is a gradient in CW severity, from light CW generating weak compression to severe CW with larger compression.…”

Section: Different Forms Of Mechanically Active Woodsmentioning

confidence: 99%

Critical review on the mechanisms of maturation stress generation in trees

Alméras

Clair

2016

J. R. Soc. Interface.

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Trees control their posture by generating asymmetric mechanical stress around the periphery of the trunk or branches. This stress is produced in wood during the maturation of the cell wall. When the need for reaction is high, it is accompanied by strong changes in cell organization and composition called reaction wood, namely compression wood in gymnosperms and tension wood in angiosperms. The process by which stress is generated in the cell wall during its formation is not yet known, and various hypothetical mechanisms have been proposed in the literature. Here we aim at discriminating between these models. First, we summarize current knowledge about reaction wood structure, state and behaviour relevant to the understanding of maturation stress generation. Then, the mechanisms proposed in the literature are listed and discussed in order to identify which can be rejected based on their inconsistency with current knowledge at the frontier between plant science and mechanical engineering.

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Section: Different Forms Of Mechanically Active Woodsmentioning

confidence: 99%

Critical review on the mechanisms of maturation stress generation in trees

Alméras

Clair

2016

J. R. Soc. Interface.

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“…In Buxus microphylla var. japonica , the PAL gene is up-regulated in RW ( Hiraide et al, 2016 ). In this study, we observed complex changes in lignin synthesis pathway genes, including PAL4 , PAL5 , CAld5H1 , CCoAOMT2 , and PO2 , respectively.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Transcriptome Analysis of Stem-Differentiating Xylem Upon Compression Stress in Cunninghamia Lanceolata

Wang

Jin

et al. 2022

Front. Genet.

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Compression wood (CW) in gymnosperm brings great difficulties to wood industry using wood as raw materials since CW presents special wood structure and have different physical and chemical properties from those of normal wood (NW). Chinese fir (Cunninghamia lanceolata) is widely distributed in China. However, global transcriptome profiling of coding and long non-coding RNA in response to compression stress has not been reported in the gymnosperm species. In this study, we revealed that CW in Chinese fir exhibited distinct morphology and cytology properties compared with those of NW, including high lignin content, thick and round tracheid cells. Furthermore, we combined both PacBio long-read SMRT sequencing (Iso-Seq) and Illumina short-read RNA-Seq to reveal the transcriptome in stem-differentiating xylem (SDX) under different time points (2, 26, and 74 h) upon compression stress in NW, CW, and OW (opposite wood), respectively. Iso-Seq was successfully assembled into 41,253 de-novo full-length transcriptome reference (average length 2,245 bp). Moreover, there were striking differences in expression upon compression stress, which were involved 13 and 7 key enzyme genes in the lignin and cellulose synthesis, respectively. Especially, we revealed 11 secondary growth-related transcription factors show differential expression under compression stress, which was further validated by qRT-PCR. Finally, the correlation between 6,533 differentially expressed coding genes and 372 differentially expressed long non-coding RNAs (lncRNAs) indicates that these lncRNAs may affect cell wall biogenesis and xyloglucan metabolism. In conclusion, our results provided comprehensive cytology properties and full-length transcriptome profiling of wood species upon compression stress. Especially we explored candidate genes, including both coding and long non-coding genes, and provided a theoretical basis for further research on the formation mechanism of CW in gymnosperm Chinese fir.

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Immunolocalization of a Normal Wood Specific Pectin Methylesterase (CoPME) and Quantification of PME Gene Expression in Differentiating Xylem of <i>Chamaecyparis obtusa</i>

Ota¹,

Yoshida²,

Sato³

et al. 2019

AJPS

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Common Mechanism of Lignification of Compression Wood in Conifers and <i>Buxus</i>

Cited by 3 publications

References 31 publications

Critical review on the mechanisms of maturation stress generation in trees

Critical review on the mechanisms of maturation stress generation in trees

Comprehensive Transcriptome Analysis of Stem-Differentiating Xylem Upon Compression Stress in Cunninghamia Lanceolata

Immunolocalization of a Normal Wood Specific Pectin Methylesterase (CoPME) and Quantification of PME Gene Expression in Differentiating Xylem of <i>Chamaecyparis obtusa</i>

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Common Mechanism of Lignification of Compression Wood in Conifers and &lt;i&gt;Buxus&lt;/i&gt;

Cited by 3 publications

References 31 publications

Critical review on the mechanisms of maturation stress generation in trees

Critical review on the mechanisms of maturation stress generation in trees

Comprehensive Transcriptome Analysis of Stem-Differentiating Xylem Upon Compression Stress in Cunninghamia Lanceolata

Immunolocalization of a Normal Wood Specific Pectin Methylesterase (CoPME) and Quantification of PME Gene Expression in Differentiating Xylem of &lt;i&gt;Chamaecyparis obtusa&lt;/i&gt;

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Common Mechanism of Lignification of Compression Wood in Conifers and <i>Buxus</i>

Immunolocalization of a Normal Wood Specific Pectin Methylesterase (CoPME) and Quantification of PME Gene Expression in Differentiating Xylem of <i>Chamaecyparis obtusa</i>