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Khodayari A, Hirn U, Spirk S, Ogawa Y, Seveno D, Thielemans W. Advancing plant cell wall modelling: Atomistic insights into cellulose, disordered cellulose, and hemicelluloses - A review. Carbohydr Polym 2024; 343:122415. [PMID: 39174111 DOI: 10.1016/j.carbpol.2024.122415] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/27/2024] [Accepted: 06/16/2024] [Indexed: 08/24/2024]
Abstract
The complexity of plant cell walls on different hierarchical levels still impedes the detailed understanding of biosynthetic pathways, interferes with processing in industry and finally limits applicability of cellulose materials. While there exist many challenges to readily accessing these hierarchies at (sub-) angström resolution, the development of advanced computational methods has the potential to unravel important questions in this field. Here, we summarize the contributions of molecular dynamics simulations in advancing the understanding of the physico-chemical properties of natural fibres. We aim to present a comprehensive view of the advancements and insights gained from molecular dynamics simulations in the field of carbohydrate polymers research. The review holds immense value as a vital reference for researchers seeking to undertake atomistic simulations of plant cell wall constituents. Its significance extends beyond the realm of molecular modeling and chemistry, as it offers a pathway to develop a more profound comprehension of plant cell wall chemistry, interactions, and behavior. By delving into these fundamental aspects, the review provides invaluable insights into future perspectives for exploration. Researchers within the molecular modeling and carbohydrates community can greatly benefit from this resource, enabling them to make significant strides in unraveling the intricacies of plant cell wall dynamics.
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Affiliation(s)
- Ali Khodayari
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, Leuven 3001, Belgium.
| | - Ulrich Hirn
- Institute of Bioproducts and Paper Technology, TU Graz, Inffeldgasse 23, Graz 8010, Austria
| | - Stefan Spirk
- Institute of Bioproducts and Paper Technology, TU Graz, Inffeldgasse 23, Graz 8010, Austria
| | - Yu Ogawa
- Centre de recherches sur les macromolécules végétales, CERMAV-CNRS, CS40700, 38041 Grenoble cedex 9, France
| | - David Seveno
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, Leuven 3001, Belgium
| | - Wim Thielemans
- Sustainable Materials Lab, Department of Chemical Engineering, KU Leuven, Campus Kulak Kortrijk, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
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Liu SH, Rukmani SJ, Mohan M, Yu Y, Vural D, Johnson DA, Copenhaver K, Bhagia S, Lamm ME, Li K, Chen J, Goswami M, Smith MD, Petridis L, Ozcan S, Smith JC. Molecular-level design of alternative media for energy-saving pilot-scale fibrillation of nanocellulose. Proc Natl Acad Sci U S A 2024; 121:e2405107121. [PMID: 39236244 DOI: 10.1073/pnas.2405107121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 07/23/2024] [Indexed: 09/07/2024] Open
Abstract
The outstanding mechanical properties, light weight, and biodegradability of cellulose nanofibrils (CNFs) make them promising components of renewable and sustainable next-generation reinforced composite biomaterials and bioplastics. Manufacturing CNFs at a pilot scale requires disc-refining fibrillation of dilute cellulose fibers in aqueous pulp suspensions to shear the fibers apart into their nanodimensional forms, which is, however, an energy-intensive process. Here, we used atomistic molecular dynamics (MD) simulation to examine media that might facilitate the reduction of interactions between cellulose fibers, thereby reducing energy consumption in fibrillation. The most suitable medium found by the simulations was an aqueous solution with 0.007:0.012 wt.% NaOH:urea, and indeed this was found in pilot-scale experiments to reduce the fibrillation energy by ~21% on average relative to water alone. The NaOH:urea-mediated CNFs have similar crystallinity, morphology, and mechanical strength to those formed in water. The NaOH and urea act synergistically on CNFs to aid fibrillation but at different length scales. NaOH deprotonates hydroxyl groups leading to mesoscale electrostatic repulsion between fibrils, whereas urea forms hydrogen bonds with protonated hydroxyl groups thus disrupting interfibril hydrogen bonds. This suggests a general mechanism in which an aqueous medium that contains a strong base and a small organic molecule acting as a hydrogen-bond acceptor and/or donor may be effectively employed in materials processes where dispersion of deprotonable polymers is required. The study demonstrates how atomic-detail computer simulation can be integrated with pilot-scale experiments in the rational design of materials processes for the circular bioeconomy.
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Affiliation(s)
- Shih-Hsien Liu
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
| | - Shalini J Rukmani
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
| | - Mood Mohan
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Yan Yu
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Derya Vural
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
- Department of Physics, Marmara University, Istanbul 34722, Türkiye
| | - Donna A Johnson
- Process Development Center, University of Maine, Orono, ME 04469
| | - Katie Copenhaver
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Samarthya Bhagia
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Meghan E Lamm
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Kai Li
- Buildings and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Jihua Chen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Monojoy Goswami
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Micholas Dean Smith
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
| | - Loukas Petridis
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
| | - Soydan Ozcan
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Jeremy C Smith
- University of Tennessee/Oak Ridge National Laboratory Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, TN 37831
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996
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Chen S, Harder C, Ribca I, Sochor B, Erbes E, Bulut Y, Pluntke L, Meinhardt A, Schummer B, Oberthür M, Keller TF, Söderberg LD, Techert SA, Stierle A, Müller-Buschbaum P, Johansson MKG, Navarro J, Roth SV. Sprayed water-based lignin colloidal nanoparticle-cellulose nanofibril hybrid films with UV-blocking ability. NANOSCALE ADVANCES 2024:d4na00191e. [PMID: 39247863 PMCID: PMC11376076 DOI: 10.1039/d4na00191e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 08/24/2024] [Indexed: 09/10/2024]
Abstract
In the context of global climate change, the demand for new functional materials that are sustainable and environmentally friendly is rapidly increasing. Cellulose and lignin are the two most abundant raw materials in nature, and are ideal components for functional materials. The hydrophilic interface and easy film-forming properties of cellulose nanofibrils make them excellent candidates for natural biopolymer templates and network structures. Lignin is a natural UV-shielding material, as it contains a large number of phenolic groups. In this work, we have applied two routes for spray deposition of hybrid films with different laminar structures using surface-charged cellulose nanofibrils and water-based colloidal lignin particles. As the first route, we prepare stacked colloidal lignin particles and cellulose nanofibrils hybrid film through a layer-by-layer deposition. As the second route, we spray-deposite premixed colloidal lignin particles and cellulose nanofibrils dispersion to prepare a mixed hybrid film. We find that cellulose nanofibrils act as a directing agent to dominate the arrangement of the colloidal lignin particles in a mixed system. Additionally, cellulose nanofibrils eliminate the agglomerations and thus increase the visible light transparency while retaining the UV shielding ability. Our research on these colloidal lignin and cellulose nanofibril hybrid films provides a fundamental understanding of using colloidal lignin nanoparticles as functional material on porous cellulose-based materials, for example on fabrics.
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Affiliation(s)
- Shouzheng Chen
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Institute of Wood Science, Universität Hamburg Leuschnerstraße 91 21031 Hamburg Germany
- Forschungs-Neutronenquelle Heinz Maier-Leibnitz FRM II, Technische Universität München Lichtenbergstraße 1 85748 Garching Germany
| | - Constantin Harder
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials James-Franck-Str. 1 85748 Garching Germany
| | - Iuliana Ribca
- Wallenberg Wood Science Center (WWSC), Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56-58 SE-100 44 Stockholm Sweden
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56 SE-100 44 Stockholm Sweden
| | - Benedikt Sochor
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
| | - Elisabeth Erbes
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Institute of X-ray Physics, Goettingen University Friedrich Hund Platz 1 37077 Goettingen Germany
| | - Yusuf Bulut
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials James-Franck-Str. 1 85748 Garching Germany
| | - Luciana Pluntke
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Hochschule für Angewandte Wissenschaften (HAW) Hamburg, Department Design Armgartstraße 24 22087 Hamburg Germany
| | - Alexander Meinhardt
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY Notkestr. 85 22607 Hamburg Germany
- Department of Physics, University of Hamburg Notkestr. 9-11 22607 Hamburg Germany
| | - Bernhard Schummer
- Fraunhofer-Institut für Integrierte Schaltungen IIS Flugplatzstr. 75 90768 Fürth Germany
| | - Markus Oberthür
- Hochschule für Angewandte Wissenschaften (HAW) Hamburg, Department Design Armgartstraße 24 22087 Hamburg Germany
| | - Thomas F Keller
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY Notkestr. 85 22607 Hamburg Germany
- Department of Physics, University of Hamburg Notkestr. 9-11 22607 Hamburg Germany
| | - L Daniel Söderberg
- Wallenberg Wood Science Center (WWSC), Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56-58 SE-100 44 Stockholm Sweden
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56 SE-100 44 Stockholm Sweden
| | - Simone A Techert
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Institute of X-ray Physics, Goettingen University Friedrich Hund Platz 1 37077 Goettingen Germany
| | - Andreas Stierle
- Centre for X-ray and Nano Science CXNS, Deutsches Elektronen-Synchtrotron DESY Notkestr. 85 22607 Hamburg Germany
- Department of Physics, University of Hamburg Notkestr. 9-11 22607 Hamburg Germany
| | - Peter Müller-Buschbaum
- Technical University of Munich, TUM School of Natural Sciences, Department of Physics, Chair for Functional Materials James-Franck-Str. 1 85748 Garching Germany
| | - Mats K G Johansson
- Wallenberg Wood Science Center (WWSC), Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56-58 SE-100 44 Stockholm Sweden
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56 SE-100 44 Stockholm Sweden
| | - Julien Navarro
- Institute of Wood Science, Universität Hamburg Leuschnerstraße 91 21031 Hamburg Germany
| | - Stephan V Roth
- Deutsches Elektronen-Synchrotron DESY Notkestraße 85 22607 Hamburg Germany
- Wallenberg Wood Science Center (WWSC), Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56-58 SE-100 44 Stockholm Sweden
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology Teknikringen 56 SE-100 44 Stockholm Sweden
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Xue Y, Yu C, Kang X. Quantitative and Structural Characterization of Native Lignin in Hardwood and Softwood Bark via Solid-State NMR Spectroscopy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:18056-18066. [PMID: 39087645 DOI: 10.1021/acs.jafc.4c03469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
A major factor limiting bark's industrial use is its greater recalcitrance compared to wood. While lignin is widely recognized as a significant contributor, precise characterization of lignin in bark remains sparse, presenting a crucial gap that impedes understanding of its impact. In this study, we employed advanced solid-state nuclear magnetic resonance (NMR) spectroscopy to analyze bark samples from various species, including willow, poplar, and pine. We established and verified that lignin methoxy peak at 56 ppm serves as a reliable quantitative metric to assess lignin content, with which we calculated the lignin contents in bark are significantly reduced by more than 70% compared to those in wood. Furthermore, in situ characterization revealed significant reduction of β-ether linkage in bark lignin across species, revealing a more condensed and resistant structural configuration. Our results have substantially advanced our comprehension of the composition and structure of native lignin in tree bark.
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Affiliation(s)
- Yi Xue
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chenjie Yu
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Xue Kang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang 315211, China
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Zhu J, Ren W, Guo F, Wang H, Yu Y. Structural elucidation of lignin, hemicelluloses and LCC from both bamboo fibers and parenchyma cells. Int J Biol Macromol 2024; 274:133341. [PMID: 38908621 DOI: 10.1016/j.ijbiomac.2024.133341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/31/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Biomass recalcitrance, a key challenge in biomass utilization, is closely linked to the architectural composition and cross-linkages of molecules within cell walls. With three bamboo species investigated, this study aims to elucidate the inherent molecular-scale structural differences between bamboo fibers and parenchyma cells through a systematic chemical extraction and structural characterization of isolated hemicelluloses, lignin, and lignin-carbohydrate complexes (LCC). We observed that parenchyma cells exhibit superior alkaline extractability compared to fibers. Additionally, we identified the hemicelluloses in parenchyma cells as L-arabino-4-O-methyl-D-glucurono-D-xylan, displaying a highly branched structure, while that in fibers is L-arabino-D-xylan. Furthermore, the parenchyma cell lignin exhibited a higher syringyl-to-guaiacyl (S/G) ratio and β-O-4 linkage content compared to fibers, whereas fibers contain more carbon‑carbon linkages including β-β, β-5, and β-1. This notable structural difference suggests a denser and more stable lignin in bamboo fibers. Importantly, we found that LCC in parenchyma cells predominantly comprises γ-ester linkages, which exhibit an alkaline-unstable nature. In contrast, fibers predominantly contain phenyl glycoside linkages, characterized by their alkaline-stable nature. These findings were observed for all the tested bamboo species, indicating the conclusions should be also valid for other bamboo species, suggesting the competitiveness of bamboo parenchyma cells as a valuable biofuel feedstock.
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Affiliation(s)
- Jiawei Zhu
- Bamboo Industry Institute, Zhejiang A & F University, Hanzhou 311300, PR China
| | - Wenting Ren
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Fei Guo
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China; National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, PR China
| | - Hankun Wang
- Institute of New Bamboo and Rattan Based Materials, International Center for Bamboo and Rattan, Beijing 100020, PR China
| | - Yan Yu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China; National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, PR China.
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6
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Yu J, Del Mundo JT, Freychet G, Zhernenkov M, Schaible E, Gomez EW, Gomez ED, Cosgrove DJ. Dynamic Structural Change of Plant Epidermal Cell Walls under Strain. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311832. [PMID: 38386283 DOI: 10.1002/smll.202311832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/05/2024] [Indexed: 02/23/2024]
Abstract
The molecular foundations of epidermal cell wall mechanics are critical for understanding structure-function relationships of primary cell walls in plants and facilitating the design of bioinspired materials. To uncover the molecular mechanisms regulating the high extensibility and strength of the cell wall, the onion epidermal wall is stretched uniaxially to various strains and cell wall structures from mesoscale to atomic scale are characterized. Upon longitudinal stretching to high strain, epidermal walls contract in the transverse direction, resulting in a reduced area. Atomic force microscopy shows that cellulose microfibrils exhibit orientation-dependent rearrangements at high strains: longitudinal microfibrils are straightened out and become highly ordered, while transverse microfibrils curve and kink. Small-angle X-ray scattering detects a 7.4 nm spacing aligned along the stretch direction at high strain, which is attributed to distances between individual cellulose microfibrils. Furthermore, wide-angle X-ray scattering reveals a widening of (004) lattice spacing and contraction of (200) lattice spacing in longitudinally aligned cellulose microfibrils at high strain, which implies longitudinal stretching of the cellulose crystal. These findings provide molecular insights into the ability of the wall to bear additional load after yielding: the aggregation of longitudinal microfibrils impedes sliding and enables further stretching of the cellulose to bear increased loads.
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Affiliation(s)
- Jingyi Yu
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Joshua T Del Mundo
- Department of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Guillaume Freychet
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Mikhail Zhernenkov
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Eric Schaible
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA
| | - Esther W Gomez
- Department of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Enrique D Gomez
- Department of Chemical Engineering, Pennsylvania State University, University Park, PA, 16802, USA
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
- Materials Research Institute, Pennsylvania State University, University Park, PA, 16802, USA
| | - Daniel J Cosgrove
- Department of Biology, Pennsylvania State University, University Park, PA, 16802, USA
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Isacsson P, Björk E, Capanema E, Granberg H, Engquist I. Electrochemical Characteristics of Lignin in CTMP for Paper Battery Electrodes. CHEMSUSCHEM 2024:e202400222. [PMID: 38874273 DOI: 10.1002/cssc.202400222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 06/15/2024]
Abstract
Lignin has been extensively researched as a cathode active material in secondary batteries. In the present work, the energy storage potential of lignin naturally present in papers made of softwood chemi-thermomechanical pulp (CTMP) is explored. More specifically, effects from softwood CTMP fines on the electrochemical characteristics have been studied. Compared to pulp fibers, fines are higher in lignin content and have higher specific surface area. It was expected that this would be positive for the electrode performance; however, the result points to the opposite. The fines do not significantly contribute to a higher lignin specific capacity, and they deteriorate the cycling stability. Higher fines content was found to result in a higher oxidative activity as well as more abundant competing reactions. These competing reactions are believed to be linked to the cycle stability. Therefore, we hypothesize that the electrochemical stability of lignin can be better understood by studying differences between fines and fiber lignin. As the theoretical specific capacity of this material is about 20 times larger than obtained here, identification of the reasons for this capacity discrepancy is needed to realize the full potential of lignin-based paper batteries.
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Affiliation(s)
- Patrik Isacsson
- Laboratory of Organic Electronics, Linköping University, Bredgatan 33, 60221, Norrköping, Sweden
- Group Innovation, Ahlstrom, Impasse Louis Champin, 38780, Pont-Evêque, France
| | - Elisabeth Björk
- Bioeconomy & Health, RISE Research Institutes of Sweden, Drottning Kristinas väg 61, 11486, Stockholm, Sweden
| | - Ewellyn Capanema
- Bioeconomy & Health, RISE Research Institutes of Sweden, Drottning Kristinas väg 61, 11486, Stockholm, Sweden
| | - Hjalmar Granberg
- Bioeconomy & Health, RISE Research Institutes of Sweden, Drottning Kristinas väg 61, 11486, Stockholm, Sweden
| | - Isak Engquist
- Laboratory of Organic Electronics, Linköping University, Bredgatan 33, 60221, Norrköping, Sweden
- Wallenberg Wood Science Center, Linköping University, Bredgatan 33, 60221, Norrköping, Sweden
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8
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Guo Y, Jiao L, Wang J, Ma L, Lu Y, Zhang Y, Guo J, Yin Y. Analyses of high spatial resolution datasets identify genes associated with multi-layered secondary cell wall thickening in Pinus bungeana. ANNALS OF BOTANY 2024; 133:953-968. [PMID: 38366549 PMCID: PMC11089263 DOI: 10.1093/aob/mcae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/14/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND AND AIMS Secondary cell wall (SCW) thickening is a major cellular developmental stage determining wood structure and properties. Although the molecular regulation of cell wall deposition during tracheary element differentiation has been well established in primary growth systems, less is known about the gene regulatory processes involved in the multi-layered SCW thickening of mature trees. METHODS Using third-generation [long-read single-molecule real-time (SMRT)] and second-generation [short-read sequencing by synthesis (SBS)] sequencing methods, we established a Pinus bungeana transcriptome resource with comprehensive functional and structural annotation for the first time. Using these approaches, we generated high spatial resolution datasets for the vascular cambium, xylem expansion regions, early SCW thickening, late SCW thickening and mature xylem tissues of 71-year-old Pinus bungeana trees. KEY RESULTS A total of 79 390 non-redundant transcripts, 31 808 long non-coding RNAs and 5147 transcription factors were annotated and quantified in different xylem tissues at all growth and differentiation stages. Furthermore, using this high spatial resolution dataset, we established a comprehensive transcriptomic profile and found that members of the NAC, WRKY, SUS, CESA and LAC gene families are major players in early SCW formation in tracheids, whereas members of the MYB and LBD transcription factor families are highly expressed during late SCW thickening. CONCLUSIONS Our results provide new molecular insights into the regulation of multi-layered SCW thickening in conifers. The high spatial resolution datasets provided can serve as important gene resources for improving softwoods.
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Affiliation(s)
- Yu Guo
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Lichao Jiao
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Jie Wang
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Lingyu Ma
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Yang Lu
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Yonggang Zhang
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Juan Guo
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Yafang Yin
- Wood Anatomy and Utilization Department, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China
- Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
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9
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Ndukwe IE, Black I, Castro CA, Vlach J, Heiss C, Roper C, Azadi P. Permethylation as a strategy for high-molecular-weight polysaccharide structure analysis by nuclear magnetic resonance-Case study of Xylella fastidiosa extracellular polysaccharide. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:370-377. [PMID: 37985228 PMCID: PMC11047163 DOI: 10.1002/mrc.5413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
Current practices for structural analysis of extremely large-molecular-weight polysaccharides via solution-state nuclear magnetic resonance (NMR) spectroscopy incorporate partial depolymerization protocols that enable polysaccharide solubilization in suitable solvents. Non-specific depolymerization techniques utilized for glycosidic bond cleavage, such as chemical degradation or ultrasonication, potentially generate structural fragments that can complicate complete and accurate characterization of polysaccharide structures. Utilization of appropriate enzymes for polysaccharide degradation, on the other hand, requires prior structural knowledge and optimal enzyme activity conditions that are not available to an analyst working with novel or unknown compounds. Herein, we describe an application of a permethylation strategy that allows the complete dissolution of intact polysaccharides for NMR structural characterization. This approach is utilized for NMR analysis of Xylella fastidiosa extracellular polysaccharide (EPS), which is essential for the virulence of the plant pathogen that affects multiple commercial crops and is responsible for multibillion dollar losses each year.
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Affiliation(s)
- Ikenna E Ndukwe
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
| | - Ian Black
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
| | - Claudia A Castro
- Department of Microbiology and Plant Pathology, University of California, Riverside, California, USA
| | - Jiri Vlach
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
| | - Christian Heiss
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
| | - Caroline Roper
- Department of Microbiology and Plant Pathology, University of California, Riverside, California, USA
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA
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10
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Xue Y, Li H, Kang X. Molecular unraveling of polysaccharide digestion in wood-feeding termites: A solid-state NMR perspective. Carbohydr Polym 2024; 331:121843. [PMID: 38388031 DOI: 10.1016/j.carbpol.2024.121843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 02/24/2024]
Abstract
Termites are among the most efficient organisms utilizing polysaccharides from wood and play a significant role in global carbon recycling, especially within tropical and subtropical ecosystems. Yet, the molecular details in polysaccharide degradation by termites remain largely unexplored. In this work, we have elucidated the shared and distinct molecular details in polysaccharides digestion by the higher termite Nasutitermes on poplar and the lower termite Cryptotermes on pine using high resolution solid-state nuclear magnetic resonance spectroscopy. For the first time, structural polymers are partitioned into the minor mobile and dominant rigid phases for individual examination. The mobile polysaccharides receive less structural impacts and exhibit greater digestibility compared to the rigid counterparts. While both termites effectively degrade cellulose, Nasutitermes significantly outperforms Cryptotermes in hemicellulose breakdown. In the rigid phase, cellulose is comprehensively degraded into a fragmented and more dynamically consistent structure; As Nasutitermes breaks down hemicellulose in a similar manner to cellulose, Cryptotermes selectively digests hemicellulose at its interfaces with cellulose. Additionally, crystalline cellulose undergoes selective degradation, and the digestion of amorphous cellulose might involve sugar chain detachment within microfibrils. Overall, our findings offer significant advancements and fresh perspectives on the polysaccharide digestion strategies of different termite lineages.
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Affiliation(s)
- Yi Xue
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China
| | - Hongjie Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China.
| | - Xue Kang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, China.
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11
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Yang W, Duan H, Yu K, Hou S, Kang Y, Wang X, Hao J, Liu L, Zhang Y, Luo L, Zhao Y, Zhang J, Lan C, Wang N, Zhang X, Tang J, Zhao Q, Sun Z, Zhang X. Integrative Dissection of Lignin Composition in Tartary Buckwheat Seed Hulls for Enhanced Dehulling Efficiency. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400916. [PMID: 38520733 PMCID: PMC11132045 DOI: 10.1002/advs.202400916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/03/2024] [Indexed: 03/25/2024]
Abstract
The rigid hull encasing Tartary buckwheat seeds necessitates a laborious dehulling process before flour milling, resulting in considerable nutrient loss. Investigation of lignin composition is pivotal in understanding the structural properties of tartary buckwheat seeds hulls, as lignin is key determinant of rigidity in plant cell walls, thus directly impacting the dehulling process. Here, the lignin composition of seed hulls from 274 Tartary buckwheat accessions is analyzed, unveiling a unique lignin chemotype primarily consisting of G lignin, a common feature in gymnosperms. Furthermore, the hardness of the seed hull showed a strong negative correlation with the S lignin content. Genome-wide detection of selective sweeps uncovered that genes governing the biosynthesis of S lignin, specifically two caffeic acid O-methyltransferases (COMTs) and one ferulate 5-hydroxylases, are selected during domestication. This likely contributed to the increased S lignin content and decreased hardness of seed hulls from more domesticated varieties. Genome-wide association studies identified robust associations between FtCOMT1 and the accumulation of S lignin in seed hull. Transgenic Arabidopsis comt1 plants expressing FtCOMT1 successfully reinstated S lignin content, confirming its conserved function across plant species. These findings provide valuable metabolic and genetic insights for the potential redesign of Tartary buckwheat seed hulls.
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Affiliation(s)
- Wenqi Yang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Haiyang Duan
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhou450002China
| | - Ke Yu
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Siyu Hou
- College of AgricultureShanxi Agricultural UniversityTaigu030801China
- Houji Lab of Shanxi ProvinceTaiyuan030031China
| | - Yifan Kang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Xiao Wang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Jiongyu Hao
- College of AgricultureShanxi Agricultural UniversityTaigu030801China
| | - Longlong Liu
- Center for Agricultural Genetic Resources ResearchShanxi Agricultural UniversityTaiyuan030031China
| | - Yin Zhang
- College of AgricultureShanxi Agricultural UniversityTaigu030801China
| | - Laifu Luo
- Key Laboratory of Plant Carbon Capture and CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai200032China
| | - Yunjun Zhao
- Key Laboratory of Plant Carbon Capture and CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai200032China
| | - Junli Zhang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Chen Lan
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
| | - Nan Wang
- Shenzhen Key Laboratory of Synthetic GenomicsGuangdong Provincial Key Laboratory of Synthetic GenomicsKey Laboratory of Quantitative Synthetic BiologyShenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Xuehai Zhang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhou450002China
| | - Jihua Tang
- National Key Laboratory of Wheat and Maize Crop ScienceCollege of AgronomyHenan Agricultural UniversityZhengzhou450002China
| | - Qiao Zhao
- Shenzhen Key Laboratory of Synthetic GenomicsGuangdong Provincial Key Laboratory of Synthetic GenomicsKey Laboratory of Quantitative Synthetic BiologyShenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Zhaoxia Sun
- College of AgricultureShanxi Agricultural UniversityTaigu030801China
- Houji Lab of Shanxi ProvinceTaiyuan030031China
| | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and ImprovementHenan Joint International Laboratory for Crop Multi‐Omics ResearchSchool of Life SciencesHenan UniversityKaifeng475004China
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12
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Zhao W, Debnath D, Gautam I, Fernando LD, Wang T. Charting the solid-state NMR signals of polysaccharides: A database-driven roadmap. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:298-309. [PMID: 37724740 DOI: 10.1002/mrc.5397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/01/2023] [Accepted: 09/07/2023] [Indexed: 09/21/2023]
Abstract
Solid-state nuclear magnetic resonance (ssNMR) measurements of intact cell walls and cellular samples often generate spectra that are difficult to interpret due to the presence of many coexisting glycans and the structural polymorphism observed in native conditions. To overcome this analytical challenge, we present a statistical approach for analyzing carbohydrate signals using high-resolution ssNMR data indexed in a carbohydrate database. We generate simulated spectra to demonstrate the chemical shift dispersion and compare this with experimental data to facilitate the identification of important fungal and plant polysaccharides, such as chitin and glucans in fungi and cellulose, hemicellulose, and pectic polymers in plants. We also demonstrate that chemically distinct carbohydrates from different organisms may produce almost identical signals, highlighting the need for high-resolution spectra and validation of resonance assignments. Our study provides a means to differentiate the characteristic signals of major carbohydrates and allows us to summarize currently undetected polysaccharides in plants and fungi, which may inspire future investigations.
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Affiliation(s)
- Wancheng Zhao
- Department of Chemistry, Michigan State University, East Lansing, Michigan, USA
| | - Debkumar Debnath
- Department of Chemistry, Michigan State University, East Lansing, Michigan, USA
| | - Isha Gautam
- Department of Chemistry, Michigan State University, East Lansing, Michigan, USA
| | - Liyanage D Fernando
- Department of Chemistry, Michigan State University, East Lansing, Michigan, USA
| | - Tuo Wang
- Department of Chemistry, Michigan State University, East Lansing, Michigan, USA
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13
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Poulhazan A, Arnold AA, Mentink-Vigier F, Muszyński A, Azadi P, Halim A, Vakhrushev SY, Joshi HJ, Wang T, Warschawski DE, Marcotte I. Molecular-level architecture of Chlamydomonas reinhardtii's glycoprotein-rich cell wall. Nat Commun 2024; 15:986. [PMID: 38307857 PMCID: PMC10837150 DOI: 10.1038/s41467-024-45246-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 01/19/2024] [Indexed: 02/04/2024] Open
Abstract
Microalgae are a renewable and promising biomass for large-scale biofuel, food and nutrient production. However, their efficient exploitation depends on our knowledge of the cell wall composition and organization as it can limit access to high-value molecules. Here we provide an atomic-level model of the non-crystalline and water-insoluble glycoprotein-rich cell wall of Chlamydomonas reinhardtii. Using in situ solid-state and sensitivity-enhanced nuclear magnetic resonance, we reveal unprecedented details on the protein and carbohydrate composition and their nanoscale heterogeneity, as well as the presence of spatially segregated protein- and glycan-rich regions with different dynamics and hydration levels. We show that mannose-rich lower-molecular-weight proteins likely contribute to the cell wall cohesion by binding to high-molecular weight protein components, and that water provides plasticity to the cell-wall architecture. The structural insight exemplifies strategies used by nature to form cell walls devoid of cellulose or other glycan polymers.
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Affiliation(s)
- Alexandre Poulhazan
- Department of Chemistry, Université du Québec à Montréal, Montreal, QC, H2X 2J6, Canada
| | - Alexandre A Arnold
- Department of Chemistry, Université du Québec à Montréal, Montreal, QC, H2X 2J6, Canada
| | - Frederic Mentink-Vigier
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - Artur Muszyński
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Parastoo Azadi
- Complex Carbohydrate Research Center, University of Georgia, Athens, GA, 30602, USA
| | - Adnan Halim
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | - Sergey Y Vakhrushev
- Copenhagen Center for Glycomics, University of Copenhagen, Copenhagen, Denmark
| | | | - Tuo Wang
- Department of Chemistry, Michigan State University, East Lansing, MI, 48824, USA.
| | - Dror E Warschawski
- Laboratoire des Biomolécules, LBM, CNRS UMR 7203, Sorbonne Université, École Normale Supérieure, PSL University, 75005, Paris, France.
| | - Isabelle Marcotte
- Department of Chemistry, Université du Québec à Montréal, Montreal, QC, H2X 2J6, Canada.
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14
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Addison B, Bu L, Bharadwaj V, Crowley MF, Harman-Ware AE, Crowley MF, Bomble YJ, Ciesielski PN. Atomistic, macromolecular model of the Populus secondary cell wall informed by solid-state NMR. SCIENCE ADVANCES 2024; 10:eadi7965. [PMID: 38170770 PMCID: PMC10776008 DOI: 10.1126/sciadv.adi7965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 12/01/2023] [Indexed: 01/05/2024]
Abstract
Plant secondary cell walls (SCWs) are composed of a heterogeneous interplay of three major biopolymers: cellulose, hemicelluloses, and lignin. Details regarding specific intermolecular interactions and higher-order architecture of the SCW superstructure remain ambiguous. Here, we use solid-state nuclear magnetic resonance (ssNMR) measurements to infer refined details about the structural configuration, intermolecular interactions, and relative proximity of all three major biopolymers within air-dried Populus wood. To enhance the utility of these findings and enable evaluation of hypotheses in a physics-based environment in silico, the NMR observables are articulated into an atomistic, macromolecular model for biopolymer assemblies within the plant SCW. Through molecular dynamics simulation, we quantitatively evaluate several variations of atomistic models to determine structural details that are corroborated by ssNMR measurements.
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Affiliation(s)
- Bennett Addison
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Lintao Bu
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Vivek Bharadwaj
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Meagan F. Crowley
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
- Chemistry Department, Colorado School of Mines, Golden, CO, USA
| | - Anne E. Harman-Ware
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Michael F. Crowley
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Yannick J. Bomble
- Biosciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Peter N. Ciesielski
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
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15
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Li W, Lin YCJ, Chen YL, Zhou C, Li S, De Ridder N, Oliveira DM, Zhang L, Zhang B, Wang JP, Xu C, Fu X, Luo K, Wu AM, Demura T, Lu MZ, Zhou Y, Li L, Umezawa T, Boerjan W, Chiang VL. Woody plant cell walls: Fundamentals and utilization. MOLECULAR PLANT 2024; 17:112-140. [PMID: 38102833 DOI: 10.1016/j.molp.2023.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/17/2023]
Abstract
Cell walls in plants, particularly forest trees, are the major carbon sink of the terrestrial ecosystem. Chemical and biosynthetic features of plant cell walls were revealed early on, focusing mostly on herbaceous model species. Recent developments in genomics, transcriptomics, epigenomics, transgenesis, and associated analytical techniques are enabling novel insights into formation of woody cell walls. Here, we review multilevel regulation of cell wall biosynthesis in forest tree species. We highlight current approaches to engineering cell walls as potential feedstock for materials and energy and survey reported field tests of such engineered transgenic trees. We outline opportunities and challenges in future research to better understand cell type biogenesis for more efficient wood cell wall modification and utilization for biomaterials or for enhanced carbon capture and storage.
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Affiliation(s)
- Wei Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | | | - Ying-Lan Chen
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan, China
| | - Chenguang Zhou
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Shuang Li
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China
| | - Nette De Ridder
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Dyoni M Oliveira
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Lanjun Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Baocai Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jack P Wang
- Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, USA
| | - Changzheng Xu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Xiaokang Fu
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Keming Luo
- Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation, Integrative Science Center of Germplasm Creation, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Ai-Min Wu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architectures, South China Agricultural University, Guangzhou 510642, China
| | - Taku Demura
- Center for Digital Green-innovation, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan
| | - Meng-Zhu Lu
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Yihua Zhou
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Laigeng Li
- CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai 200032, China
| | - Toshiaki Umezawa
- Laboratory of Metabolic Science of Forest Plants and Microorganisms, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Wout Boerjan
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, Technologiepark 71, 9052 Ghent, Belgium
| | - Vincent L Chiang
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China; Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, USA.
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16
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Jarvis MC. Forces on and in the cell walls of living plants. PLANT PHYSIOLOGY 2023; 194:8-14. [PMID: 37403192 PMCID: PMC10762502 DOI: 10.1093/plphys/kiad387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/16/2023] [Accepted: 06/16/2023] [Indexed: 07/06/2023]
Abstract
Environmental influences and differential growth subject plants to mechanical forces. Forces on the whole plant resolve into tensile forces on its primary cell walls and both tensile and compression forces on the secondary cell wall layers of woody tissues. Forces on cell walls are further resolved into forces on cellulose microfibrils and the noncellulosic polymers between them. Many external forces on plants oscillate, with time constants that vary from seconds to milliseconds. Sound waves are a high-frequency example. Forces on the cell wall lead to responses that direct the oriented deposition of cellulose microfibrils and the patterned expansion of the cell wall, leading to complex cell and tissue morphology. Recent experiments have established many of the details of which cell wall polymers associate with one another in both primary and secondary cell walls, but questions remain about which of the interconnections are load bearing, especially in primary cell walls. Direct cellulose-cellulose interactions appear to have a more important mechanical role than was previously thought, and some of the noncellulosic polymers may have a role in keeping microfibrils apart rather than cross-linking them as formerly envisaged.
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Affiliation(s)
- Michael C Jarvis
- College of Science and Engineering, University of Glasgow, Glasgow G12 8QQ, Scotland, UK
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17
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Ishida K, Ohba Y, Yoshimi Y, Wilson LFL, Echevarría-Poza A, Yu L, Iwai H, Dupree P. Differing structures of galactoglucomannan in eudicots and non-eudicot angiosperms. PLoS One 2023; 18:e0289581. [PMID: 38127933 PMCID: PMC10735049 DOI: 10.1371/journal.pone.0289581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/27/2023] [Indexed: 12/23/2023] Open
Abstract
The structures of cell wall mannan hemicelluloses have changed during plant evolution. Recently, a new structure called β-galactoglucomannan (β-GGM) was discovered in eudicot plants. This galactoglucomannan has β-(1,2)-Gal-α-(1,6)-Gal disaccharide branches on some mannosyl residues of the strictly alternating Glc-Man backbone. Studies in Arabidopsis revealed β-GGM is related in structure, biosynthesis and function to xyloglucan. However, when and how plants acquired β-GGM remains elusive. Here, we studied mannan structures in many sister groups of eudicots. All glucomannan structures were distinct from β-GGM. In addition, we searched for candidate mannan β-galactosyltransferases (MBGT) in non-eudicot angiosperms. Candidate AtMBGT1 orthologues from rice (OsGT47A-VII) and Amborella (AtrGT47A-VII) did not show MBGT activity in vivo. However, the AtMBGT1 orthologue from rice showed MUR3-like xyloglucan galactosyltransferase activity in complementation analysis using Arabidopsis. Further, reverse genetic analysis revealed that the enzyme (OsGT47A-VII) contributes to proper root growth in rice. Together, gene duplication and diversification of GT47A-VII in eudicot evolution may have been involved in the acquisition of mannan β-galactosyltransferase activity. Our results indicate that β-GGM is likely to be a eudicot-specific mannan.
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Affiliation(s)
- Konan Ishida
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
| | - Yusuke Ohba
- Graduate School of Life and Environmental Science, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshihisa Yoshimi
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
| | - Louis F. L. Wilson
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
| | - Alberto Echevarría-Poza
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
| | - Li Yu
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
| | - Hiroaki Iwai
- Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Paul Dupree
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge, United Kingdom
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18
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Liszka A, Wightman R, Latowski D, Bourdon M, Krogh KBRM, Pietrzykowski M, Lyczakowski JJ. Structural differences of cell walls in earlywood and latewood of Pinus sylvestris and their contribution to biomass recalcitrance. FRONTIERS IN PLANT SCIENCE 2023; 14:1283093. [PMID: 38148867 PMCID: PMC10749964 DOI: 10.3389/fpls.2023.1283093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/13/2023] [Indexed: 12/28/2023]
Abstract
Scots pine (Pinus sylvestris L.) is an evergreen coniferous tree with wide distribution and good growth performance in a range of habitats. Therefore, wood from P. sylvestris is produced in many managed forests and is frequently used in industry. Despite the importance of pine wood, we still do not fully understand its molecular structure what limits improvements in its processing. One of the basic features leading to variation in wood properties is the presence of earlywood and latewood which form annual growth rings. Here, we characterise biochemical traits that differentiate cell walls of earlywood and latewood in Scots pine. We discover that latewood is less recalcitrant to enzymatic digestion, with galactoglucomannan showing particularly pronounced difference in accessibility. Interestingly, characterisation of lignin reveals a higher proportion of coniferaldehydes in pine latewood and suggests the presence of a different linkage landscape in this wood type. With complementary analysis of wood polysaccharides this enabled us to propose the first detailed molecular model of earlywood and latewood and to conclude that the variation in lignin structure is likely the main determinant of differences in recalcitrance observed between the two wood types in pine. Our discoveries lay the foundation for improvements in industrial processes that use pine wood since we show clear pathways for increasing the efficiency of enzymatic processing of this renewable material. Our work will help guide future breeding of pine trees with desired timber properties and can help link molecular structure of softwood cell walls to function of the different types of xylem in conifers.
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Affiliation(s)
- Aleksandra Liszka
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Jagiellonian University, Doctoral School of Exact and Natural Sciences, Krakow, Poland
| | - Raymond Wightman
- Microscopy Core Facility, Sainsbury Laboratory, University of Cambridge, Cambridge, United Kingdom
| | - Dariusz Latowski
- Department of Plant Physiology and Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Matthieu Bourdon
- Sainsbury Laboratory, University of Cambridge, Cambridge, United Kingdom
| | | | - Marcin Pietrzykowski
- Department of Ecological Engineering and Forest Hydrology, Faculty of Forestry, University of Agriculture in Krakow, Krakow, Poland
| | - Jan J. Lyczakowski
- Department of Plant Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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19
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Sun L, Yin X, Sossah FL, Han X, Li Y. Comparative genomic analysis of pleurotus species reveals insights into the evolution and coniferous utilization of Pleurotus placentodes. Front Mol Biosci 2023; 10:1292556. [PMID: 38028535 PMCID: PMC10658006 DOI: 10.3389/fmolb.2023.1292556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Pleurotus placentodes (PPL) and Pleurotus cystidiosus (PCY) are economically valuable species. PPL grows on conifers, while PCY grows on broad-leaved trees. To reveal the genetic mechanism behind PPL's adaptability to conifers, we performed de novo genome sequencing and comparative analysis of PPL and PCY. We determined the size of the genomes for PPL and PCY to be 36.12 and 42.74 Mb, respectively, and found that they contain 10,851 and 15,673 protein-coding genes, accounting for 59.34% and 53.70% of their respective genome sizes. Evolution analysis showed PPL was closely related to P. ostreatus with the divergence time of 62.7 MYA, while PCY was distantly related to other Pleurotus species with the divergence time of 111.7 MYA. Comparative analysis of carbohydrate-active enzymes (CAZYmes) in PPL and PCY showed that the increase number of CAZYmes related to pectin and cellulose degradation (e.g., AA9, PL1) in PPL may be important for the degradation and colonization of conifers. In addition, geraniol degradation and peroxisome pathways identified by comparative genomes should be another factors for PPL's tolerance to conifer substrate. Our research provides valuable genomes for Pleurotus species and sheds light on the genetic mechanism of PPL's conifer adaptability, which could aid in breeding new Pleurotus varieties for coniferous utilization.
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Affiliation(s)
- Lei Sun
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun, China
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun, China
| | - Xiaolei Yin
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun, China
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun, China
| | - Frederick Leo Sossah
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun, China
- Council for Scientific and Industrial Research (CSIR), Oil Palm Research Institute, Coconut Research Programme, Sekondi, Ghana
| | - Xuerong Han
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun, China
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun, China
| | - Yu Li
- Jilin Province Key Laboratory of Fungal Phenomics, Jilin Agricultural University, Changchun, China
- International Cooperation Research Center of China for New Germplasm Breeding of Edible Mushrooms, Jilin Agricultural University, Changchun, China
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20
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Fernando LD, Zhao W, Gautam I, Ankur A, Wang T. Polysaccharide assemblies in fungal and plant cell walls explored by solid-state NMR. Structure 2023; 31:1375-1385. [PMID: 37597511 PMCID: PMC10843855 DOI: 10.1016/j.str.2023.07.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/30/2023] [Accepted: 07/26/2023] [Indexed: 08/21/2023]
Abstract
Structural analysis of macromolecular complexes within their natural cellular environment presents a significant challenge. Recent applications of solid-state NMR (ssNMR) techniques on living fungal cells and intact plant tissues have greatly enhanced our understanding of the structure of extracellular matrices. Here, we selectively highlight the most recent progress in this field. Specifically, we discuss how ssNMR can provide detailed insights into the chemical composition and conformational structure of pectin, and the consequential impact on polysaccharide interactions and cell wall organization. We elaborate on the use of ssNMR data to uncover the arrangement of the lignin-polysaccharide interface and the macrofibrillar structure in native plant stems or during degradation processes. We also comprehend the dynamic structure of fungal cell walls under various morphotypes and stress conditions. Finally, we assess how the combination of NMR with other techniques can enhance our capacity to address unresolved structural questions concerning these complex macromolecular assemblies.
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Affiliation(s)
- Liyanage D Fernando
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Wancheng Zhao
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Isha Gautam
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Ankur Ankur
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Tuo Wang
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA.
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21
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Maloney T, Phiri J, Zitting A, Paajanen A, Penttilä P, Ceccherini S. Deaggregation of cellulose macrofibrils and its effect on bound water. Carbohydr Polym 2023; 319:121166. [PMID: 37567690 DOI: 10.1016/j.carbpol.2023.121166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/09/2023] [Accepted: 06/28/2023] [Indexed: 08/13/2023]
Abstract
The purpose of this study was to determine how to control and measure the hierarchical swelling in pulp fibers via electrostatic interactions and localized osmotic pressure. A eutectic solvent system was used to systematically increase phosphate groups in the cell wall. Increase in fiber charge led to an increase in swelling properties, as expected. At a charge value around 180-200 μmol/g the macrofibrils were found to deaggregate. This led to a large jump in mesoscale swelling, from 0.9 to 2.5 mL/g, and surface area, from 400 to 1000 m2/g. This deaggregation was confirmed with X-ray scattering and solute exclusion. A novel thermoporosimetry method was used in the study. This involved splitting the nonfreezing water into two subfractions, thus allowing a more complete analysis of pore structure and surface area. The hydrated surface area for the samples was in the range 1200-1400 m2/g, which agreed well with simulations of aggregated microfibrils. Adding charge to the pulp fibers had a nonlinear effect on handsheet strength properties. This suggests that hierarchical control of fiber swelling may be a useful approach to improve important property pairs such as strength/density in packaging and other commercially important fiber products.
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Affiliation(s)
- Thaddeus Maloney
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland.
| | - Josphat Phiri
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Aleksi Zitting
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Antti Paajanen
- VTT Technical Research Centre of Finland, P.O. Box 1000, FI02044 VTT Espoo, Finland
| | - Paavo Penttilä
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Sara Ceccherini
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
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22
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Wang Z, Deuss PJ. The isolation of lignin with native-like structure. Biotechnol Adv 2023; 68:108230. [PMID: 37558187 DOI: 10.1016/j.biotechadv.2023.108230] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/11/2023]
Abstract
Searching for renewable alternatives for fossil carbon resources to produce chemicals, fuels and materials is essential for the development of a sustainable society. Lignin, a major component of lignocellulosic biomass, is an abundant renewable source of aromatics and is currently underutilized as it is often burned as an undesired side stream in the production of paper and bioethanol. This lignin harbors great potential as source of high value aromatic chemicals and materials. Biorefinery schemes focused on lignin are currently under development with aim of acquiring added value from lignin. However, the performance of these novel lignin-focused biorefineries is closely linked with the quality of extracted lignin in terms of the level of degradation and modification. Thus, the reactivity including the degradation pathways of the native lignin contained in the plant material needs to be understood in detail to potentially achieve higher value from lignin. Undegraded native-like lignin with an as close as possible structure to native lignin contained in the lignocellulosic plant material serves as a promising model lignin to support detailed studies on the structure and reactivity of native lignin, yielding key understanding for the development of lignin-focused biorefineries. The aim of this review is to highlight the different methods to attain "native-like" lignins that can be valuable for such studies. This is done by giving a basic introduction on what is known about the native lignin structure and the techniques and methods used to analyze it followed by an overview of the fractionation and isolation methods to isolate native-like lignin. Finally, a perspective on the isolation and use of native-like lignin is provided, showing the great potential that this type of lignin brings for understanding the effect of different biomass treatments on the native lignin structure.
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Affiliation(s)
- Zhiwen Wang
- Department of Chemical Engineering (ENTEG), University of Groningen, Nijenborgh 4, 9747, AG, Groningen, the Netherlands.
| | - Peter J Deuss
- Department of Chemical Engineering (ENTEG), University of Groningen, Nijenborgh 4, 9747, AG, Groningen, the Netherlands.
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23
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Wang J, Jia H, Daniel G, Gao J, Jiang X, Ma L, Yue S, Guo J, Yin Y. Insights into asynchronous changes of cell wall polymers accumulated in different cell types during conifer xylem differentiation. Carbohydr Polym 2023; 316:121076. [PMID: 37321750 DOI: 10.1016/j.carbpol.2023.121076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/20/2023] [Accepted: 05/28/2023] [Indexed: 06/17/2023]
Abstract
An improved understanding of the events involved in cell wall polymers deposition during xylem development could provide new scientific ways for molecular regulation and biomass utilization. Axial and radial cells are spatially heterogeneous and have highly cross-correlated developmental behavior, whereas the deposition of corresponding cell wall polymers during xylem differentiation is less studied. To clarify our hypothesis that cell wall polymers of two cell types accumulated asynchronously, we performed hierarchical visualization, including label-free in situ spectral imaging of different polymer compositions during the development of Pinus bungeana. In axial tracheids, the deposition of cellulose and glucomannan was observed on earlier stages of secondary wall thickening than that of xylan and lignin, while xylan distribution was strongly related to spatial distribution of lignin during differentiation. The content of lignin and polysaccharides increased by over 130 % and 60 % respectively when the S3 layer was formed, compared to the S2 stage. In ray cells, the deposition of crystalline cellulose, xylan, and lignin was generally lagged compared to that in corresponding axial tracheids, although the process followed a similar order. The concentration of lignin and polysaccharides in ray cells was only approximately 50 % of that in the axial tracheids during secondary wall thickening.
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Affiliation(s)
- Jie Wang
- Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China.
| | - Hao Jia
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Institute of Medical Photonics, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
| | - Geoffrey Daniel
- Department of Forest Biomaterials and Technology/Wood Science, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden.
| | - Jie Gao
- Department of Forest Biomaterials and Technology/Wood Science, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden.
| | - Xiaomei Jiang
- Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China.
| | - Lingyu Ma
- Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China
| | - Shuhua Yue
- Key Laboratory of Biomechanics and Mechanobiology, Ministry of Education, Institute of Medical Photonics, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.
| | - Juan Guo
- Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China.
| | - Yafang Yin
- Department of Wood Anatomy and Utilization, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China; Wood Specimen Resource Center (WOODPEDIA) of National Forestry and Grassland Administration, Beijing 100091, China.
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24
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Saikia A, Dutta K, Bora D, Saha B, Singh A. Metal catalyst-free selective acetosyringone synthesis from rice straw lignin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100203-100214. [PMID: 37626195 DOI: 10.1007/s11356-023-29349-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023]
Abstract
In recent decades, due to abundance (second most abundant natural polymer after cellulose) and sustainability, lignin has attracted much interest from different researchers to use as a raw material for producing various value-added materials such as polymer and fuel. In addition to that, the aromatic structure of lignin makes it a suitable candidate for producing platform chemicals with aromatic rings. As a result, lignin depolymerization has become an interesting process to derive different phenolic monomers like vanillin, acetosyringone, and guaiacol. Among them, due to the bioactive characteristics and efficiency of acetosyringone in plant regulatory systems, the production of acetosyringone from lignin has been presented in this work. A green and cost-effective method was developed for the selective formation of acetosyringone via depolymerization of isolated rice straw lignin (RSL) by using metal catalyst-free conditions in the biphasic medium and described. The RSL was characterized with various spectroscopic techniques such as FT-IR, solid-state 13C NMR, XPS, and TGA. The selectivity of synthesized acetosyringone during depolymerization of RSL was checked from GC-MS analysis. The molecular structure and purity of acetosyringone isolated from preparative thin layer chromatography (TLC) were confirmed with the help of 1H NMR and HRMS, respectively.
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Affiliation(s)
- Ankumoni Saikia
- Coal and Energy Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Koushik Dutta
- Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Debashree Bora
- Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Biswajit Saha
- Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ajit Singh
- Coal and Energy Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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25
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Tai HC, Chang CH, Cai W, Lin JH, Huang SJ, Lin QY, Yuan ECY, Li SL, Lin YCJ, Chan JCC, Tsao CS. Wood cellulose microfibrils have a 24-chain core-shell nanostructure in seed plants. NATURE PLANTS 2023; 9:1154-1168. [PMID: 37349550 DOI: 10.1038/s41477-023-01430-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/08/2023] [Indexed: 06/24/2023]
Abstract
Wood cellulose microfibril (CMF) is the most abundant organic substance on Earth but its nanostructure remains poorly understood. There are controversies regarding the glucan chain number (N) of CMFs during initial synthesis and whether they become fused afterward. Here, we combined small-angle X-ray scattering, solid-state nuclear magnetic resonance and X-ray diffraction analyses to resolve CMF nanostructures in native wood. We developed small-angle X-ray scattering measurement methods for the cross-section aspect ratio and area of the crystalline-ordered CMF core, which has a higher scattering length density than the semidisordered shell zone. The 1:1 aspect ratio suggested that CMFs remain mostly segregated, not fused. The area measurement reflected the chain number in the core zone (Ncore). To measure the ratio of ordered cellulose over total cellulose (Roc) by solid-state nuclear magnetic resonance, we developed a method termed global iterative fitting of T1ρ-edited decay (GIFTED), in addition to the conventional proton spin relaxation editing method. Using the formula N = Ncore/Roc, most wood CMFs were found to contain 24 glucan chains, conserved between gymnosperm and angiosperm trees. The average CMF has a crystalline-ordered core of ~2.2 nm diameter and a semidisordered shell of ~0.5 nm thickness. In naturally and artificially aged wood, we observed only CMF aggregation (contact without crystalline continuity) but not fusion (forming a conjoined crystalline unit). This further argued against the existence of partially fused CMFs in new wood, overturning the recently proposed 18-chain fusion hypothesis. Our findings are important for advancing wood structural knowledge and more efficient use of wood resources in sustainable bio-economies.
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Affiliation(s)
- Hwan-Ching Tai
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, People's Republic of China.
| | - Chih-Hui Chang
- Department of Chemistry, National Taiwan University, Taipei, Republic of China
| | - Wenjie Cai
- School of Cultural Industry and Tourism and Cultural Industry Research Center, Fujian Social Science Research Base, Xiamen University of Technology, Xiamen, People's Republic of China
| | - Jer-Horng Lin
- Department of Chemistry, National Taiwan University, Taipei, Republic of China
| | - Shing-Jong Huang
- Instrumentation Center, National Taiwan University, Taipei, Republic of China
| | - Qian-Yan Lin
- Department of Chemistry, National Taiwan University, Taipei, Republic of China
| | | | - Shu-Li Li
- Department of Chemistry, National Taiwan University, Taipei, Republic of China
| | - Ying-Chung Jimmy Lin
- Department of Life Science and Institute of Plant Biology, National Taiwan University, Taipei, Republic of China
| | | | - Cheng-Si Tsao
- Department of Materials Science and Engineering, National Taiwan University, Taipei, Republic of China.
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26
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Li H, Kang X, Yang M, Kasseney BD, Zhou X, Liang S, Zhang X, Wen JL, Yu B, Liu N, Zhao Y, Mo J, Currie CR, Ralph J, Yelle DJ. Molecular insights into the evolution of woody plant decay in the gut of termites. SCIENCE ADVANCES 2023; 9:eadg1258. [PMID: 37224258 DOI: 10.1126/sciadv.adg1258] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 04/17/2023] [Indexed: 05/26/2023]
Abstract
Plant cell walls represent the most abundant pool of organic carbon in terrestrial ecosystems but are highly recalcitrant to utilization by microbes and herbivores owing to the physical and chemical barrier provided by lignin biopolymers. Termites are a paradigmatic example of an organism's having evolved the ability to substantially degrade lignified woody plants, yet atomic-scale characterization of lignin depolymerization by termites remains elusive. We report that the phylogenetically derived termite Nasutitermes sp. efficiently degrades lignin via substantial depletion of major interunit linkages and methoxyls by combining isotope-labeled feeding experiments and solution-state and solid-state nuclear magnetic resonance spectroscopy. Exploring the evolutionary origin of lignin depolymerization in termites, we reveal that the early-diverging woodroach Cryptocercus darwini has limited capability in degrading lignocellulose, leaving most polysaccharides intact. Conversely, the phylogenetically basal lineages of "lower" termites are able to disrupt the lignin-polysaccharide inter- and intramolecular bonding while leaving lignin largely intact. These findings advance knowledge on the elusive but efficient delignification in natural systems with implications for next-generation ligninolytic agents.
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Affiliation(s)
- Hongjie Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Xue Kang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang, China
| | - Mengyi Yang
- Xiaoshan Management Center of Termite Control, Hangzhou Xiaoshan Housing Security and Real Estate Management Service Center, Hangzhou 311200, China
| | - Boris Dodji Kasseney
- Department of Zoology, Faculty of Sciences, University of Lomé, 1BP1515 Lomé, Togo
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY 40546, USA
| | - Shiyou Liang
- Agricultural Information Center of Pingyang, Renmin Road 71, Wenzhou 325400, China
| | - Xiaojie Zhang
- Quzhou Management Center of Termite Control, Quzhou Housing Security and Real Estate Management Service Center, Quzhou 311200, China
| | - Jia-Long Wen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, No. 35 Tsinghua East Road, Beijing, Haidian District 100083, China
| | - Baoting Yu
- National Termite Control Center of China, Moganshan Road 695, Hangzhou 310011, China
| | - Ning Liu
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang, China
| | - Jianchu Mo
- Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Sciences, College of Agricultural and Biotechnology, Zhejiang University, Hangzhou, China
| | - Cameron R Currie
- Department of Energy Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI 53726, USA
- Department of Bacteriology, University of Wisconsin-Madison, Madison WI 53706, USA
- David Braley Centre for Antibiotic Discovery, Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - John Ralph
- Department of Energy Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, University of Wisconsin-Madison, Madison, WI 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison WI 53706, USA
| | - Daniel J Yelle
- US Forest Products Laboratory, Forest Service, Madison, WI 53726, USA
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27
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Tatman BP, Franks WT, Brown SP, Lewandowski JR. Nuclear spin diffusion under fast magic-angle spinning in solid-state NMR. J Chem Phys 2023; 158:2890210. [PMID: 37171196 DOI: 10.1063/5.0142201] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/10/2023] [Indexed: 05/13/2023] Open
Abstract
Solid-state nuclear spin diffusion is the coherent and reversible process through which spin order is transferred via dipolar couplings. With the recent increases in magic-angle spinning (MAS) frequencies and magnetic fields becoming routinely applied in solid-state nuclear magnetic resonance, understanding how the increased 1H resolution obtained affects spin diffusion is necessary for interpretation of several common experiments. To investigate the coherent contributions to spin diffusion with fast MAS, we have developed a low-order correlation in Liouville space model based on the work of Dumez et al. (J. Chem. Phys. 33, 224501, 2010). Specifically, we introduce a new method for basis set selection, which accounts for the resonance-offset dependence at fast MAS. Furthermore, we consider the necessity of including chemical shift, both isotropic and anisotropic, in the modeling of spin diffusion. Using this model, we explore how different experimental factors change the nature of spin diffusion. Then, we show case studies to exemplify the issues that arise in using spin diffusion techniques at fast spinning. We show that the efficiency of polarization transfer via spin diffusion occurring within a deuterated and 100% back-exchanged protein sample at 60 kHz MAS is almost entirely dependent on resonance offset. We additionally identify temperature-dependent magnetization transfer in beta-aspartyl L-alanine, which could be explained by the influence of an incoherent relaxation-based nuclear Overhauser effect.
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Affiliation(s)
- Ben P Tatman
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - W Trent Franks
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Steven P Brown
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Józef R Lewandowski
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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28
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Ndukwe IE, Black I, Castro CA, Vlach J, Heiss C, Roper C, Azadi P. Permethylation as a Strategy for High Molecular Weight Polysaccharide Structure Analysis by NMR - Case Study of Xylella fastidiosa EPS. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.24.538115. [PMID: 37162848 PMCID: PMC10168210 DOI: 10.1101/2023.04.24.538115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Current practices for structure analysis of extremely large molecular weight polysaccharides via solution-state NMR spectroscopy incorporate partial depolymerization protocols that enable polysaccharide solubilization in suitable solvents. Non-specific depolymerization techniques utilized for glycosidic bond cleavage, such as chemical degradation or ultrasonication, potentially generate structure fragments that can complicate the complete characterization of polysaccharide structures. Utilization of appropriate enzymes for polysaccharide degradation, on the other hand, requires prior structure information and optimal enzyme activity conditions that are not available to the analyst working with novel or unknown compounds. Herein, we describe the application of a permethylation strategy that allows the complete dissolution of the intact polysaccharides for NMR structure characterization. This approach is utilized for NMR analysis of Xylella fastidiosa EPS, which is essential for the virulence the plant pathogen that affects multiple commercial crops and is responsible for multibillion dollar losses each year.
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29
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Raval P, Thomas N, Hamdouna L, Delevoye L, Lafon O, Manjunatha Reddy GN. Boron Adsorption Kinetics of Microcrystalline Cellulose and Polymer Resin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5384-5395. [PMID: 37022335 DOI: 10.1021/acs.langmuir.3c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Tailoring boron-polysaccharide interactions is an important strategy for developing functional soft materials such as hydrogels, fire retardants, and sorbents for environmental remediation, for example, using lignocellulosic biomass. For such applications to be realized, it is paramount to understand the adsorption kinetics of borate anions on cellulose and their local structures. Here, the kinetic aspects of boron adsorption by microcrystalline cellulose, lignin, and polymeric resin are investigated and compared. Borate anions interact with the vicinal diols in the glucopyranoside moieties of cellulose to yield chemisorbed boron chelate complexes. In contrast to cellulose, technical lignin contains fewer cis-vicinal diols, and it does not have a tendency to form such chelate complexes upon treatment with the aqueous boric acid solution. The formation kinetics and stability of these chelate complexes strongly depend on nanoscale structures, as well as reaction conditions such as pH and concentration of the sorbate and sorbent. Specifically, insights into the distinct boron adsorption sites were obtained by solid-state one-dimensional (1D) 11B magic-angle spinning NMR and the local structures and intermolecular interactions in the vicinities of boron chelate complexes are elucidated by analyzing two-dimensional (2D) 1H-13C and 11B-1H heteronuclear correlation NMR spectra. The total boron adsorption capacity of cellulose is estimated to be in the 1.3-3.0 mg range per gram of sorbent, which is lower than the boron adsorption capacity of a polystyrene-based resin, ∼17.2 mg of boron per gram of Amberlite IRA 743. Our study demonstrates that the local backbone and side chain flexibility as well as the structures of polyol groups play a significant role in determining the kinetic and thermodynamic stability of chelate complexes, yielding to different boron adsorption capabilities of lignocellulosic polymers.
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Affiliation(s)
- Parth Raval
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Neethu Thomas
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Lama Hamdouna
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Laurent Delevoye
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Olivier Lafon
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - G N Manjunatha Reddy
- University of Lille, CNRS, Centrale Lille Institut, Univ. Artois, UMR 8181-UCCS- Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
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30
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Østby H, Várnai A. Hemicellulolytic enzymes in lignocellulose processing. Essays Biochem 2023; 67:533-550. [PMID: 37068264 PMCID: PMC10160854 DOI: 10.1042/ebc20220154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/25/2023] [Accepted: 01/30/2023] [Indexed: 04/19/2023]
Abstract
Lignocellulosic biomass is the most abundant source of carbon-based material on a global basis, serving as a raw material for cellulosic fibers, hemicellulosic polymers, platform sugars, and lignin resins or monomers. In nature, the various components of lignocellulose (primarily cellulose, hemicellulose, and lignin) are decomposed by saprophytic fungi and bacteria utilizing specialized enzymes. Enzymes are specific catalysts and can, in many cases, be produced on-site at lignocellulose biorefineries. In addition to reducing the use of often less environmentally friendly chemical processes, the application of such enzymes in lignocellulose processing to obtain a range of specialty products can maximize the use of the feedstock and valorize many of the traditionally underutilized components of lignocellulose, while increasing the economic viability of the biorefinery. While cellulose has a rich history of use in the pulp and paper industries, the hemicellulosic fraction of lignocellulose remains relatively underutilized in modern biorefineries, among other reasons due to the heterogeneous chemical structure of hemicellulose polysaccharides, the composition of which varies significantly according to the feedstock and the choice of pretreatment method and extraction solvent. This paper reviews the potential of hemicellulose in lignocellulose processing with focus on what can be achieved using enzymatic means. In particular, we discuss the various enzyme activities required for complete depolymerization of the primary hemicellulose types found in plant cell walls and for the upgrading of hemicellulosic polymers, oligosaccharides, and pentose sugars derived from hemicellulose depolymerization into a broad spectrum of value-added products.
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Affiliation(s)
- Heidi Østby
- Norwegian University of Life Sciences (NMBU), Faculty of Chemistry, Biotechnology and Food Science, P.O. Box 5003, N-1432 Aas, Norway
| | - Anikó Várnai
- Norwegian University of Life Sciences (NMBU), Faculty of Chemistry, Biotechnology and Food Science, P.O. Box 5003, N-1432 Aas, Norway
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31
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Gao Y, Lipton AS, Munson CR, Ma Y, Johnson KL, Murray DT, Scheller HV, Mortimer JC. Elongated galactan side chains mediate cellulose-pectin interactions in engineered Arabidopsis secondary cell walls. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023. [PMID: 37029760 DOI: 10.1111/tpj.16242] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 05/17/2023]
Abstract
The plant secondary cell wall is a thickened matrix of polysaccharides and lignin deposited at the cessation of growth in some cells. It forms the majority of carbon in lignocellulosic biomass, and it is an abundant and renewable source for forage, fiber, materials, fuels, and bioproducts. The complex structure and arrangement of the cell wall polymers mean that the carbon is difficult to access in an economical and sustainable way. One solution is to alter the cell wall polymer structure so that it is more suited to downstream processing. However, it remains difficult to predict what the effects of this engineering will be on the assembly, architecture, and properties of the cell wall. Here, we make use of Arabidopsis plants expressing a suite of genes to increase pectic galactan chain length in the secondary cell wall. Using multi-dimensional solid-state nuclear magnetic resonance, we show that increasing galactan chain length enhances pectin-cellulose spatial contacts and increases cellulose crystallinity. We also found that the increased galactan content leads to fewer spatial contacts of cellulose with xyloglucan and the backbone of pectin. Hence, we propose that the elongated galactan side chains compete with xyloglucan and the pectic backbone for cellulose interactions. Due to the galactan topology, this may result in comparatively weak interactions and disrupt the cell wall architecture. Therefore, introduction of this strategy into trees or other bioenergy crops would benefit from cell-specific expression strategies to avoid negative effects on plant growth.
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Affiliation(s)
- Yu Gao
- Joint BioEnergy Institute, Emeryville, California, 94608, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA
| | - Andrew S Lipton
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington, 99354, USA
| | - Coyla R Munson
- Department of Chemistry, University of California Davis, Davis, California, 95616, USA
| | - Yingxuan Ma
- School of BioSciences, The University of Melbourne, Parkville, Victoria, 3052, Australia
- Department of Animal, Plant and Soil Sciences, La Trobe Institute for Agriculture and Food, La Trobe University, Bundoora, Victoria, 3086, Australia
| | - Kim L Johnson
- School of BioSciences, The University of Melbourne, Parkville, Victoria, 3052, Australia
- Department of Animal, Plant and Soil Sciences, La Trobe Institute for Agriculture and Food, La Trobe University, Bundoora, Victoria, 3086, Australia
| | - Dylan T Murray
- Department of Chemistry, University of California Davis, Davis, California, 95616, USA
| | - Henrik V Scheller
- Joint BioEnergy Institute, Emeryville, California, 94608, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, California, 94720, USA
| | - Jenny C Mortimer
- Joint BioEnergy Institute, Emeryville, California, 94608, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California, 94720, USA
- School of Agriculture, Food and Wine, Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, South Australia, 5064, Australia
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32
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Derba-Maceluch M, Mitra M, Hedenström M, Liu X, Gandla ML, Barbut FR, Abreu IN, Donev EN, Urbancsok J, Moritz T, Jönsson LJ, Tsang A, Powlowski J, Master ER, Mellerowicz EJ. Xylan glucuronic acid side chains fix suberin-like aliphatic compounds to wood cell walls. THE NEW PHYTOLOGIST 2023; 238:297-312. [PMID: 36600379 DOI: 10.1111/nph.18712] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Wood is the most important repository of assimilated carbon in the biosphere, in the form of large polymers (cellulose, hemicelluloses including glucuronoxylan, and lignin) that interactively form a composite, together with soluble extractives including phenolic and aliphatic compounds. Molecular interactions among these compounds are not fully understood. We have targeted the expression of a fungal α-glucuronidase to the wood cell wall of aspen (Populus tremula L. × tremuloides Michx.) and Arabidopsis (Arabidopsis thaliana (L.) Heynh), to decrease contents of the 4-O-methyl glucuronopyranose acid (mGlcA) substituent of xylan, to elucidate mGlcA's functions. The enzyme affected the content of aliphatic insoluble cell wall components having composition similar to suberin, which required mGlcA for binding to cell walls. Such suberin-like compounds have been previously identified in decayed wood, but here, we show their presence in healthy wood of both hardwood and softwood species. By contrast, γ-ester bonds between mGlcA and lignin were insensitive to cell wall-localized α-glucuronidase, supporting the intracellular formation of these bonds. These findings challenge the current view of the wood cell wall composition and reveal a novel function of mGlcA substituent of xylan in fastening of suberin-like compounds to cell wall. They also suggest an intracellular initiation of lignin-carbohydrate complex assembly.
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Affiliation(s)
- Marta Derba-Maceluch
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Madhusree Mitra
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | | | - Xiaokun Liu
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | | | - Félix R Barbut
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Ilka N Abreu
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Evgeniy N Donev
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - János Urbancsok
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Thomas Moritz
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Leif J Jönsson
- Department of Chemistry, Umeå University, 901 87, Umeå, Sweden
| | - Adrian Tsang
- Centre for Structural and Functional Genomics, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Justin Powlowski
- Centre for Structural and Functional Genomics, Concordia University, Montreal, QC, H4B 1R6, Canada
| | - Emma R Master
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
| | - Ewa J Mellerowicz
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
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33
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Österberg M, Henn KA, Farooq M, Valle-Delgado JJ. Biobased Nanomaterials─The Role of Interfacial Interactions for Advanced Materials. Chem Rev 2023; 123:2200-2241. [PMID: 36720130 PMCID: PMC9999428 DOI: 10.1021/acs.chemrev.2c00492] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
This review presents recent advances regarding biomass-based nanomaterials, focusing on their surface interactions. Plant biomass-based nanoparticles, like nanocellulose and lignin from industry side streams, hold great potential for the development of lightweight, functional, biodegradable, or recyclable material solutions for a sustainable circular bioeconomy. However, to obtain optimal properties of the nanoparticles and materials made thereof, it is crucial to control the interactions both during particle production and in applications. Herein we focus on the current understanding of these interactions. Solvent interactions during particle formation and production, as well as interactions with water, polymers, cells and other components in applications, are addressed. We concentrate on cellulose and lignin nanomaterials and their combination. We demonstrate how the surface chemistry of the nanomaterials affects these interactions and how excellent performance is only achieved when the interactions are controlled. We furthermore introduce suitable methods for probing interactions with nanomaterials, describe their advantages and challenges, and introduce some less commonly used methods and discuss their possible applications to gain a deeper understanding of the interfacial chemistry of biobased nanomaterials. Finally, some gaps in current understanding and interesting emerging research lines are identified.
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Affiliation(s)
- Monika Österberg
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 02150Espoo, Finland
| | - K Alexander Henn
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 02150Espoo, Finland
| | - Muhammad Farooq
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 02150Espoo, Finland
| | - Juan José Valle-Delgado
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Vuorimiehentie 1, 02150Espoo, Finland
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Wang S, Robertz S, Seven M, Kraemer F, Kuhn BM, Liu L, Lunde C, Pauly M, Ramírez V. A large-scale forward genetic screen for maize mutants with altered lignocellulosic properties. FRONTIERS IN PLANT SCIENCE 2023; 14:1099009. [PMID: 36959947 PMCID: PMC10028098 DOI: 10.3389/fpls.2023.1099009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The development of efficient pipelines for the bioconversion of grass lignocellulosic feedstocks is challenging due to the limited understanding of the molecular mechanisms controlling the synthesis, deposition, and degradation of the varying polymers unique to grass cell walls. Here, we describe a large-scale forward genetic approach resulting in the identification of a collection of chemically mutagenized maize mutants with diverse alterations in their cell wall attributes such as crystalline cellulose content or hemicellulose composition. Saccharification yield, i.e. the amount of lignocellulosic glucose (Glc) released by means of enzymatic hydrolysis, is increased in two of the mutants and decreased in the remaining six. These mutants, termed candy-leaf (cal), show no obvious plant growth or developmental defects despite associated differences in their lignocellulosic composition. The identified cal mutants are a valuable tool not only to understand recalcitrance of grass lignocellulosics to enzymatic deconstruction but also to decipher grass-specific aspects of cell wall biology once the genetic basis, i.e. the location of the mutation, has been identified.
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Affiliation(s)
- Shaogan Wang
- Institute for Plant Cell Biology and Biotechnology-Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Stefan Robertz
- Institute for Plant Cell Biology and Biotechnology-Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Merve Seven
- Institute for Plant Cell Biology and Biotechnology-Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Florian Kraemer
- Department of Plant and Microbial Biology, Energy Biosciences Institute, University of California, Berkeley, Berkeley, CA, United States
| | - Benjamin M. Kuhn
- Department of Plant and Microbial Biology, Energy Biosciences Institute, University of California, Berkeley, Berkeley, CA, United States
| | - Lifeng Liu
- Department of Plant and Microbial Biology, Energy Biosciences Institute, University of California, Berkeley, Berkeley, CA, United States
| | - China Lunde
- Plant Gene Expression Center, Agricultural Research Service, U.S. Department of Agriculture, Albany, CA, United States
| | - Markus Pauly
- Institute for Plant Cell Biology and Biotechnology-Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Plant and Microbial Biology, Energy Biosciences Institute, University of California, Berkeley, Berkeley, CA, United States
| | - Vicente Ramírez
- Institute for Plant Cell Biology and Biotechnology-Cluster of Excellence on Plant Sciences, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
- Department of Plant and Microbial Biology, Energy Biosciences Institute, University of California, Berkeley, Berkeley, CA, United States
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35
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Sarkar D, Santiago IJ, Vermaas JV. Atomistic Origins of Biomass Recalcitrance in Organosolv Pretreatment. Chem Eng Sci 2023. [DOI: 10.1016/j.ces.2023.118587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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36
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Hemicellulose: Structure, Chemical Modification, and Application. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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37
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Tryfona T, Bourdon M, Delgado Marques R, Busse‐Wicher M, Vilaplana F, Stott K, Dupree P. Grass xylan structural variation suggests functional specialization and distinctive interaction with cellulose and lignin. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 113:1004-1020. [PMID: 36602010 PMCID: PMC10952629 DOI: 10.1111/tpj.16096] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
Xylan is the most abundant non-cellulosic polysaccharide in grass cell walls, and it has important structural roles. The name glucuronoarabinoxylan (GAX) is used to describe this variable hemicellulose. It has a linear backbone of β-1,4-xylose (Xyl) residues that may be substituted with α-1,2-linked (4-O-methyl)-glucuronic acid (GlcA), α-1,3-linked arabinofuranose (Araf), and sometimes acetylation at the O-2 and/or O-3 positions. The role of these substitutions remains unclear, although there is increasing evidence that they affect the way xylan interacts with other cell wall components, particularly cellulose and lignin. Here, we used substitution-dependent endo-xylanase enzymes to investigate the variability of xylan substitution in grass culm cell walls. We show that there are at least three different types of xylan: (i) an arabinoxylan with evenly distributed Araf substitutions without GlcA (AXe); (ii) a glucuronoarabinoxylan with clustered GlcA modifications (GAXc); and (iii) a highly substituted glucuronoarabinoxylan (hsGAX). Immunolocalization of AXe and GAXc in Brachypodium distachyon culms revealed that these xylan types are not restricted to a few cell types but are instead widely detected in Brachypodium cell walls. We hypothesize that there are functionally specialized xylan types within the grass cell wall. The even substitutions of AXe may permit folding and binding on the surface of cellulose fibrils, whereas the more complex substitutions of the other xylans may support a role in the matrix and interaction with other cell wall components.
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Affiliation(s)
- Theodora Tryfona
- Department of Biochemistry, School of Biological SciencesUniversity of CambridgeCambridgeCB2 1QWUK
| | | | - Rita Delgado Marques
- Department of Biochemistry, School of Biological SciencesUniversity of CambridgeCambridgeCB2 1QWUK
| | - Marta Busse‐Wicher
- Department of Biochemistry, School of Biological SciencesUniversity of CambridgeCambridgeCB2 1QWUK
| | - Francisco Vilaplana
- Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of TechnologyStockholmSE‐10691Sweden
| | - Katherine Stott
- Department of Biochemistry, School of Biological SciencesUniversity of CambridgeCambridgeCB2 1QWUK
| | - Paul Dupree
- Department of Biochemistry, School of Biological SciencesUniversity of CambridgeCambridgeCB2 1QWUK
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38
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Sun Q, Wang HM, Ma CY, Hong S, Sun Z, Yuan TQ. Dynamic structural evolution of lignin macromolecules and hemicelluloses during Chinese pine growth. Int J Biol Macromol 2023; 235:123688. [PMID: 36801284 DOI: 10.1016/j.ijbiomac.2023.123688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/29/2023] [Accepted: 02/11/2023] [Indexed: 02/18/2023]
Abstract
To comprehend the biosynthesis processes of conifers, it is essential to investigate the disparity between the cell wall shape and the interior chemical structures of polymers throughout the development of Chinese pine. In this study, branches of mature Chinese pine were separated according to their growth time (2, 4, 6, 8 and 10 years). The variation of cell wall morphology and lignin distribution was comprehensively monitored by scanning electron microscopy (SEM) and confocal Raman microscopy (CRM), respectively. Moreover, the chemical structures of lignin and alkali-extracted hemicelluloses were extensively characterized by nuclear magnetic resonance (NMR) and gel permeation chromatography (GPC). The thickness of latewood cell walls increased steadily from 1.29 μm to 3.38 μm, and the structure of the cell wall components became more complicated as the growth time increased. Based on the structural analysis, it was found that the content of β-O-4 (39.88-45.44/100 Ar), β-β (3.20-10.02/100 Ar) and β-5 (8.09-15.35/100 Ar) linkages as well as the degree of polymerization of lignin increased with the growth time. The complication propensity increased significantly over 6 years before slowing to a trickle over 8 and 10 years. Furthermore, alkali-extracted hemicelluloses of Chinese pine mainly consist of galactoglucomannans and arabinoglucuronxylan, in which the relative content of galactoglucomannans increased with the growth of the pine, especially from 6 to 10 years.
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Affiliation(s)
- Qian Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Han-Min Wang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Cheng-Ye Ma
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Si Hong
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Zhuohua Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Tong-Qi Yuan
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
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Electron tomography unravels new insights into fiber cell wall nanostructure; exploring 3D macromolecular biopolymeric nano-architecture of spruce fiber secondary walls. Sci Rep 2023; 13:2350. [PMID: 36759530 PMCID: PMC9911387 DOI: 10.1038/s41598-023-29113-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/31/2023] [Indexed: 02/11/2023] Open
Abstract
Lignocellulose biomass has a tremendous potential as renewable biomaterials for fostering the "bio-based society" and circular bioeconomy paradigm. It requires efficient use and breakdown of fiber cell walls containing mainly cellulose, hemicellulose and lignin biopolymers. Despite their great importance, there is an extensive debate on the true structure of fiber walls and knowledge on the macromolecular nano-organization is limited and remains elusive in 3D. We employed dual-axis electron tomography that allows visualization of previously unseen 3D macromolecular organization/biopolymeric nano-architecture of the secondary S2 layer of Norway spruce fiber wall. Unprecedented 3D nano-structural details with novel insights into cellulose microfibrils (~ 2 nm diameter), macrofibrils, nano-pore network and cell wall chemistry (volume %) across the S2 were explored and quantified including simulation of structure related permeability. Matrix polymer association with cellulose varied between microfibrils and macrofibrils with lignin directly associated with MFs. Simulated bio-nano-mechanical properties revealed stress distribution within the S2 and showed similar properties between the idealized 3D model and the native S2 (actual tomogram). Present work has great potential for significant advancements in lignocellulose research on nano-scale understanding of cell wall assembly/disassembly processes leading to more efficient industrial processes of functionalization, valorization and target modification technologies.
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Tõlgo M, Hegnar OA, Larsbrink J, Vilaplana F, Eijsink VGH, Olsson L. Enzymatic debranching is a key determinant of the xylan-degrading activity of family AA9 lytic polysaccharide monooxygenases. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:2. [PMID: 36604763 PMCID: PMC9814446 DOI: 10.1186/s13068-022-02255-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/26/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Previous studies have revealed that some Auxiliary Activity family 9 (AA9) lytic polysaccharide monooxygenases (LPMOs) oxidize and degrade certain types of xylans when incubated with mixtures of xylan and cellulose. Here, we demonstrate that the xylanolytic activities of two xylan-active LPMOs, TtLPMO9E and TtLPMO9G from Thermothielavioides terrestris, strongly depend on the presence of xylan substitutions. RESULTS Using mixtures of phosphoric acid-swollen cellulose (PASC) and wheat arabinoxylan (WAX), we show that removal of arabinosyl substitutions with a GH62 arabinofuranosidase resulted in better adsorption of xylan to cellulose, and enabled LPMO-catalyzed cleavage of this xylan. Furthermore, experiments with mixtures of PASC and arabinoglucuronoxylan from spruce showed that debranching of xylan with the GH62 arabinofuranosidase and a GH115 glucuronidase promoted LPMO activity. Analyses of mixtures with PASC and (non-arabinosylated) beechwood glucuronoxylan showed that GH115 action promoted LPMO activity also on this xylan. Remarkably, when WAX was incubated with Avicel instead of PASC in the presence of the GH62, both xylan and cellulose degradation by the LPMO9 were impaired, showing that the formation of cellulose-xylan complexes and their susceptibility to LPMO action also depend on the properties of the cellulose. These debranching effects not only relate to modulation of the cellulose-xylan interaction, which influences the conformation and rigidity of the xylan, but likely also affect the LPMO-xylan interaction, because debranching changes the architecture of the xylan surface. CONCLUSIONS Our results shed new light on xylanolytic LPMO9 activity and on the functional interplay and possible synergies between the members of complex lignocellulolytic enzyme cocktails. These findings will be relevant for the development of future lignocellulolytic cocktails and biomaterials.
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Affiliation(s)
- Monika Tõlgo
- grid.5371.00000 0001 0775 6028Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden ,grid.5371.00000 0001 0775 6028Wallenberg Wood Science Centre, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | - Olav A. Hegnar
- grid.19477.3c0000 0004 0607 975XFaculty of Chemistry, Biotechnology and Food Science, NMBU-Norwegian University of Life Sciences, 1433 Ås, Norway
| | - Johan Larsbrink
- grid.5371.00000 0001 0775 6028Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden ,grid.5371.00000 0001 0775 6028Wallenberg Wood Science Centre, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | - Francisco Vilaplana
- grid.5037.10000000121581746Division of Glycoscience, Department of Chemistry, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden ,grid.5037.10000000121581746Wallenberg Wood Science Centre, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
| | - Vincent G. H. Eijsink
- grid.19477.3c0000 0004 0607 975XFaculty of Chemistry, Biotechnology and Food Science, NMBU-Norwegian University of Life Sciences, 1433 Ås, Norway
| | - Lisbeth Olsson
- grid.5371.00000 0001 0775 6028Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden ,grid.5371.00000 0001 0775 6028Wallenberg Wood Science Centre, Chalmers University of Technology, 412 96 Gothenburg, Sweden
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41
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Capetti CCDM, Pellegrini VOA, Espirito Santo MC, Cortez AA, Falvo M, Curvelo AADS, Campos E, Filgueiras JG, Guimaraes FEG, de Azevedo ER, Polikarpov I. Enzymatic production of xylooligosaccharides from corn cobs: Assessment of two different pretreatment strategies. Carbohydr Polym 2023; 299:120174. [PMID: 36876789 DOI: 10.1016/j.carbpol.2022.120174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 10/14/2022]
Abstract
Corn cobs (CCs) are abundant xylan-rich agricultural wastes. Here, we compared CCs XOS yields obtained via two different pretreatment routs, alkali and hydrothermal, using a set of recombinant endo- and exo-acting enzymes from GH10 and GH11 families, which have different restrictions for xylan substitutions. Furthermore, impacts of the pretreatments on chemical composition and physical structure of the CCs samples were evaluated. We demonstrated that alkali pretreatment route rendered 59 mg of XOS per gram of initial biomass, while an overall XOS yield of 115 mg/g was achieved via hydrothermal pretreatment using a combination of GH10 and GH11 enzymes. These results hold a promise of ecologically sustainable enzymatic valorization of CCs via "green" and sustainable XOS production.
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Affiliation(s)
- Caio Cesar de Mello Capetti
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | | | - Melissa Cristina Espirito Santo
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | - Anelyse Abreu Cortez
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | - Maurício Falvo
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | - Antonio Aprigio da Silva Curvelo
- Instituto de Química de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | - Eleonora Campos
- Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria (INTA), Los Reseros y N. Repetto, Hurlingham B1686, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina
| | - Jefferson Gonçalves Filgueiras
- Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista, 24020-007, Niterói, RJ, Brazil; Instituto de Física, Universidade Federal do Rio de Janeiro, CP68528, 21941-972, Rio de Janeiro, RJ, Brazil
| | | | - Eduardo Ribeiro de Azevedo
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil
| | - Igor Polikarpov
- Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, 13566-590 São Carlos, SP, Brazil.
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42
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Yu W, Yi Y, Wang H, Yang Y, Xing C, Zeng L, Tang J, Tan Z. Effects of residual pectin composition and content on the properties of cellulose nanofibrils from ramie fibers. Carbohydr Polym 2022; 298:120112. [DOI: 10.1016/j.carbpol.2022.120112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/09/2022] [Accepted: 09/10/2022] [Indexed: 11/02/2022]
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43
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Yu L, Yoshimi Y, Cresswell R, Wightman R, Lyczakowski JJ, Wilson LFL, Ishida K, Stott K, Yu X, Charalambous S, Wurman-Rodrich J, Terrett OM, Brown SP, Dupree R, Temple H, Krogh KBRM, Dupree P. Eudicot primary cell wall glucomannan is related in synthesis, structure, and function to xyloglucan. THE PLANT CELL 2022; 34:4600-4622. [PMID: 35929080 PMCID: PMC9614514 DOI: 10.1093/plcell/koac238] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
Hemicellulose polysaccharides influence assembly and properties of the plant primary cell wall (PCW), perhaps by interacting with cellulose to affect the deposition and bundling of cellulose fibrils. However, the functional differences between plant cell wall hemicelluloses such as glucomannan, xylan, and xyloglucan (XyG) remain unclear. As the most abundant hemicellulose, XyG is considered important in eudicot PCWs, but plants devoid of XyG show relatively mild phenotypes. We report here that a patterned β-galactoglucomannan (β-GGM) is widespread in eudicot PCWs and shows remarkable similarities to XyG. The sugar linkages forming the backbone and side chains of β-GGM are analogous to those that make up XyG, and moreover, these linkages are formed by glycosyltransferases from the same CAZy families. Solid-state nuclear magnetic resonance indicated that β-GGM shows low mobility in the cell wall, consistent with interaction with cellulose. Although Arabidopsis β-GGM synthesis mutants show no obvious growth defects, genetic crosses between β-GGM and XyG mutants produce exacerbated phenotypes compared with XyG mutants. These findings demonstrate a related role of these two similar but distinct classes of hemicelluloses in PCWs. This work opens avenues to study the roles of β-GGM and XyG in PCWs.
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Affiliation(s)
- Li Yu
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Yoshihisa Yoshimi
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | | | - Raymond Wightman
- Microscopy Core Facility, Sainsbury Laboratory, University of Cambridge, Bateman Street, Cambridge CB2 1LR, UK
| | | | | | - Konan Ishida
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Katherine Stott
- Department of Biochemistry, University of Cambridge, Sanger Building, 80 Tennis Court Road, Cambridge CB2 1GA, UK
| | - Xiaolan Yu
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Stephan Charalambous
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | | | - Oliver M Terrett
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
| | - Steven P Brown
- Department of Physics, University of Warwick, Coventry CV4 7AL, UK
| | - Ray Dupree
- Department of Physics, University of Warwick, Coventry CV4 7AL, UK
| | - Henry Temple
- Department of Biochemistry, University of Cambridge, Hopkins Building, The Downing Site, Tennis Court Road, Cambridge CB2 1QW, UK
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44
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Deciphering the nonlinear variation of subunits during the delignification of bamboo. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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45
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Zhao W, Deligey F, Chandra Shekar S, Mentink-Vigier F, Wang T. Current limitations of solid-state NMR in carbohydrate and cell wall research. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2022; 341:107263. [PMID: 35809516 DOI: 10.1016/j.jmr.2022.107263] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/18/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
High-resolution investigation of cell wall materials has emerged as an important application of biomolecular solid-state NMR (ssNMR). Multidimensional correlation experiments have become a standard method for obtaining sufficient spectral resolution to determine the polymorphic structure of carbohydrates and address biochemical questions regarding the supramolecular organization of cell walls. Using plant cellulose and matrix polysaccharides as examples, we will review how the multifaceted complexity of polysaccharide structure is impeding the resonance assignment process and assess the available biochemical and spectroscopic approaches that could circumvent this barrier. We will emphasize the ineffectiveness of the current methods in reconciling the ever-growing dataset and deriving structural information. We will evaluate the protocols for achieving efficient and homogeneous hyperpolarization across the cell wall material using magic-angle spinning dynamic nuclear polarization (MAS-DNP). Critical questions regarding the line-broadening effects of cell wall molecules at cryogenic temperature and by paramagnetic biradicals will be considered. Finally, the MAS-DNP method will be placed into a broader context with other structural characterization techniques, such as cryo-electron microscopy, to advance ssNMR research in carbohydrate and cell wall biomaterials.
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Affiliation(s)
- Wancheng Zhao
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Fabien Deligey
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - S Chandra Shekar
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | | | - Tuo Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA.
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46
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Paajanen A, Zitting A, Rautkari L, Ketoja JA, Penttilä PA. Nanoscale Mechanism of Moisture-Induced Swelling in Wood Microfibril Bundles. NANO LETTERS 2022; 22:5143-5150. [PMID: 35767745 PMCID: PMC9284609 DOI: 10.1021/acs.nanolett.2c00822] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Understanding nanoscale moisture interactions is fundamental to most applications of wood, including cellulosic nanomaterials with tailored properties. By combining X-ray scattering experiments with molecular simulations and taking advantage of computed scattering, we studied the moisture-induced changes in cellulose microfibril bundles of softwood secondary cell walls. Our models reproduced the most important experimentally observed changes in diffraction peak locations and widths and gave new insights into their interpretation. We found that changes in the packing of microfibrils dominate at moisture contents above 10-15%, whereas deformations in cellulose crystallites take place closer to the dry state. Fibrillar aggregation is a significant source of drying-related changes in the interior of the microfibrils. Our results corroborate the fundamental role of nanoscale phenomena in the swelling behavior and properties of wood-based materials and promote their utilization in nanomaterials development. Simulation-assisted scattering analysis proved an efficient tool for advancing the nanoscale characterization of cellulosic materials.
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Affiliation(s)
- Antti Paajanen
- VTT
Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Aleksi Zitting
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Espoo, Finland
| | - Lauri Rautkari
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Espoo, Finland
| | - Jukka A. Ketoja
- VTT
Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 VTT, Espoo, Finland
| | - Paavo A. Penttilä
- Department
of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Espoo, Finland
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47
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Cosgrove DJ. Building an extensible cell wall. PLANT PHYSIOLOGY 2022; 189:1246-1277. [PMID: 35460252 PMCID: PMC9237729 DOI: 10.1093/plphys/kiac184] [Citation(s) in RCA: 74] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/21/2022] [Indexed: 05/15/2023]
Abstract
This article recounts, from my perspective of four decades in this field, evolving paradigms of primary cell wall structure and the mechanism of surface enlargement of growing cell walls. Updates of the structures, physical interactions, and roles of cellulose, xyloglucan, and pectins are presented. This leads to an example of how a conceptual depiction of wall structure can be translated into an explicit quantitative model based on molecular dynamics methods. Comparison of the model's mechanical behavior with experimental results provides insights into the molecular basis of complex mechanical behaviors of primary cell wall and uncovers the dominant role of cellulose-cellulose interactions in forming a strong yet extensible network.
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Affiliation(s)
- Daniel J Cosgrove
- Department of Biology, Penn State University, Pennsylvania 16802, USA
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48
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Chen P, Wohlert J, Berglund L, Furó I. Water as an Intrinsic Structural Element in Cellulose Fibril Aggregates. J Phys Chem Lett 2022; 13:5424-5430. [PMID: 35679323 PMCID: PMC9234975 DOI: 10.1021/acs.jpclett.2c00781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
While strong water association with cellulose in plant cell walls and man-made materials is well-established, its molecular scale aspects are not fully understood. The thermodynamic consequences of having water molecules located at the microfibril-microfibril interfaces in cellulose fibril aggregates are therefore analyzed by molecular dynamics simulations. We find that a thin layer of water molecules at those interfaces can be in a state of thermal equilibrium with water surrounding the fibril aggregates because such an arrangement lowers the free energy of the total system. The main reason is enthalpic: water at the microfibril-microfibril interfaces enables the cellulose surface hydroxyls to experience a more favorable electrostatic environment. This enthalpic gain overcomes the entropic penalty from strong immobilization of water molecules. Hence, those particular water molecules stabilize the cellulose fibril aggregates, akin to the role of water in some proteins. Structural and functional hypotheses related to this finding are presented.
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Affiliation(s)
- Pan Chen
- Beijing
Engineering Research Centre of Cellulose and Its Derivatives, School
of Materials Science and Engineering, Beijing
Institute of Technology, 100081 Beijing, P.R. China
- Department of Fiber and Polymer Technology, Wallenberg Wood Science
Center, and Department of
Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Jakob Wohlert
- Department of Fiber and Polymer Technology, Wallenberg Wood Science
Center, and Department of
Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - Lars Berglund
- Department of Fiber and Polymer Technology, Wallenberg Wood Science
Center, and Department of
Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
| | - István Furó
- Department of Fiber and Polymer Technology, Wallenberg Wood Science
Center, and Department of
Chemistry, KTH Royal Institute of Technology, SE-10044 Stockholm, Sweden
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49
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Li X, Kouzounis D, Kabel MA, de Vries RP. GH10 and GH11 endoxylanases in Penicillium subrubescens: comparative characterization and synergy with GH51, GH54, GH62 α-L-arabinofuranosidases from the same fungus. N Biotechnol 2022; 70:84-92. [PMID: 35597447 DOI: 10.1016/j.nbt.2022.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/25/2022]
Abstract
Penicillium subrubescens has an expanded set of genes encoding putative endoxylanases (PsXLNs) compared to most other Penicillia and other fungi. In this study, all GH10 and GH11 PsXLNs were produced heterologously in Pichia pastoris and characterized. They were active towards beech wood xylan (BWX) and wheat flour arabinoxylan (WAX), and showed stability over a wide pH range. Additionally, PsXLNs released distinct oligosaccharides from WAX, and showed significant cooperative action with P. subrubescens α-L-arabinofuranosidases (PsABFs) from GH51 or GH54 for WAX degradation, giving insight into a more diverse XLN and ABF system for the efficient degradation of complex hemicelluloses. Homology modelling analysis pointed out differences in the catalytic center of PsXLNs, which are discussed in view of the different modes of action observed. These findings facilitate understanding of structural requirements for substrate recognition to contribute to recombinant XLN engineering for biotechnological applications.
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Affiliation(s)
- Xinxin Li
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands
| | - Dimitrios Kouzounis
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Mirjam A Kabel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - Ronald P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands.
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50
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Berruyer P, Bertarello A, Björgvinsdóttir S, Lelli M, Emsley L. 1H Detected Relayed Dynamic Nuclear Polarization. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:7564-7570. [PMID: 35558821 PMCID: PMC9083189 DOI: 10.1021/acs.jpcc.2c01077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/01/2022] [Indexed: 06/15/2023]
Abstract
Recently, it has been shown that methods based on the dynamics of 1H nuclear hyperpolarization in magic angle spinning (MAS) NMR experiments can be used to determine mesoscale structures in complex materials. However, these methods suffer from low sensitivity, especially since they have so far only been feasible with indirect detection of 1H polarization through dilute heteronuclei such as 13C or 29Si. Here we combine relayed-DNP (R-DNP) with fast MAS using 0.7 mm diameter rotors at 21.2 T. Fast MAS enables direct 1H detection to follow hyperpolarization dynamics, leading to an acceleration in experiment times by a factor 16. Furthermore, we show that by varying the MAS rate, and consequently modulating the 1H spin diffusion rate, we can record a series of independent R-DNP curves that can be analyzed jointly to provide an accurate determination of domain sizes. This is confirmed here with measurements on microcrystalline l-histidine·HCl·H2O at MAS frequencies up to 60 kHz, where we determine a Weibull distribution of particle sizes centered on a radius of 440 ± 20 nm with an order parameter of k = 2.2.
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Affiliation(s)
- Pierrick Berruyer
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Andrea Bertarello
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Snædís Björgvinsdóttir
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Moreno Lelli
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Magnetic
Resonance Center (CERM) and Department of Chemistry “Ugo Schiff”, University of Florence, 50019 Sesto Fiorentino, Italy
| | - Lyndon Emsley
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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