Evidence map›Paper›PMID 29270675›Full record

ArticlePlanta2018

The effect of altered lignin composition on mechanical properties of CINNAMYL ALCOHOL DEHYDROGENASE (CAD) deficient poplars.

Merve Özparpucu, Notburga Gierlinger, Ingo Burgert, Rebecca Van Acker, Ruben Vanholme, Wout Boerjan, Gilles Pilate, Annabelle Déjardin, Markus Rüggeberg

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Planta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 33 citations in OpenAlex.

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  14. Inactivation ofBiotechnology for biofuels · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 3 countries.

Merve ÖzparpucuInstitute for Building Materials (IfB), ETH Zurich, 8093, Zurich, Switzerland.
Notburga GierlingerInstitute for Biophysics, University of Natural Resources and Life Sciences Vienna, 1190, Vienna, Austria.
Ingo BurgertInstitute for Building Materials (IfB), ETH Zurich, 8093, Zurich, Switzerland.
Rebecca Van AckerDepartment of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium.
Ruben VanholmeDepartment of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium.
Wout BoerjanDepartment of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium.
Gilles PilateAGPF, INRA, 45075, Orléans, France.
Annabelle DéjardinAGPF, INRA, 45075, Orléans, France.
Markus RüggebergInstitute for Building Materials (IfB), ETH Zurich, 8093, Zurich, Switzerland. mrueggeberg@ethz.ch.ORCID http://orcid.org/0000-0002-6966-8311
ETH Zurich · CHGhent University · BEBOKU University · AT

Funding

Austrian Science Fund START-project SURFINPLANT Y-728-316Austrian Science Fund FWF Y 728MultiBioPro 311804Research Foundation Flanders postdoctoral fellowshipSBO-FISH project ARBOREF 140894SBO project BIOLEUM 130039
6 · The paper itself

Abstract

MAIN

conclusionCAD-deficient poplars enabled studying the influence of altered lignin composition on mechanical properties. Severe alterations in lignin composition did not influence the mechanical properties. Wood represents a hierarchical fiber-composite material with excellent mechanical properties. Despite its wide use and versatility, its mechanical behavior has not been entirely understood. It has especially been challenging to unravel the mechanical function of the cell wall matrix. Lignin engineering has been a useful tool to increase the knowledge on the mechanical function of lignin as it allows for modifications of lignin content and composition and the subsequent studying of the mechanical properties of these transgenics. Hereby, in most cases, both lignin composition and content are altered and the specific influence of lignin composition has hardly been revealed. Here, we have performed a comprehensive micromechanical, structural, and spectroscopic analysis on xylem strips of transgenic poplar plants, which are downregulated for cinnamyl alcohol dehydrogenase (CAD) by a hairpin-RNA-mediated silencing approach. All parameters were evaluated on the same samples. Raman microscopy revealed that the lignin of the hpCAD poplars was significantly enriched in aldehydes and reduced in the (relative) amount of G-units. FTIR spectra indicated pronounced changes in lignin composition, whereas lignin content was not significantly changed between WT and the hpCAD poplars. Microfibril angles were in the range of 18°-24° and were not significantly different between WT and transgenics. No significant changes were observed in mechanical properties, such as tensile stiffness, ultimate stress, and yield stress. The specific findings on hpCAD poplar allowed studying the specific influence of lignin composition on mechanics. It can be concluded that the changes in lignin composition in hpCAD poplars did not affect the micromechanical tensile properties.

Indexed as

Alcohol OxidoreductasesLigninMicrofibrilsPopulusSpectroscopy, Fourier Transform InfraredSpectrum Analysis, RamanTensile StrengthX-Ray DiffractionAlcohol Oxidoreductasescinnamyl alcohol dehydrogenaseLigninCell wall mechanicsGenetic modificationLignin compositionPlant cell wall

Identifiers

PMID29270675
OpenAlexW2778152371

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.