1
|
Urbancsok J, Donev EN, Sivan P, van Zalen E, Barbut FR, Derba-Maceluch M, Šimura J, Yassin Z, Gandla ML, Karady M, Ljung K, Winestrand S, Jönsson LJ, Scheepers G, Delhomme N, Street NR, Mellerowicz EJ. Flexure wood formation via growth reprogramming in hybrid aspen involves jasmonates and polyamines and transcriptional changes resembling tension wood development. THE NEW PHYTOLOGIST 2023; 240:2312-2334. [PMID: 37857351 DOI: 10.1111/nph.19307] [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: 07/11/2023] [Accepted: 09/19/2023] [Indexed: 10/21/2023]
Abstract
Stem bending in trees induces flexure wood but its properties and development are poorly understood. Here, we investigated the effects of low-intensity multidirectional stem flexing on growth and wood properties of hybrid aspen, and on its transcriptomic and hormonal responses. Glasshouse-grown trees were either kept stationary or subjected to several daily shakes for 5 wk, after which the transcriptomes and hormones were analyzed in the cambial region and developing wood tissues, and the wood properties were analyzed by physical, chemical and microscopy techniques. Shaking increased primary and secondary growth and altered wood differentiation by stimulating gelatinous-fiber formation, reducing secondary wall thickness, changing matrix polysaccharides and increasing cellulose, G- and H-lignin contents, cell wall porosity and saccharification yields. Wood-forming tissues exhibited elevated jasmonate, polyamine, ethylene and brassinosteroids and reduced abscisic acid and gibberellin signaling. Transcriptional responses resembled those during tension wood formation but not opposite wood formation and revealed several thigmomorphogenesis-related genes as well as novel gene networks including FLA and XTH genes encoding plasma membrane-bound proteins. Low-intensity stem flexing stimulates growth and induces wood having improved biorefinery properties through molecular and hormonal pathways similar to thigmomorphogenesis in herbaceous plants and largely overlapping with the tension wood program of hardwoods.
Collapse
Affiliation(s)
- János Urbancsok
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Evgeniy N Donev
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Pramod Sivan
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Elena van Zalen
- Umeå Plant Science Centre (UPSC), Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
| | - Félix R Barbut
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Marta Derba-Maceluch
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Jan Šimura
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Zakiya Yassin
- RISE Research Institutes of Sweden, Drottning Kristinas väg 61, 11428, Stockholm, Sweden
| | | | - Michal Karady
- Laboratory of Growth Regulators, Institute of Experimental Botany of the Czech Academy of Sciences and Faculty of Science of Palacký University, 78371, Olomouc, Czech Republic
| | - Karin Ljung
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | | | - Leif J Jönsson
- Department of Chemistry, Umeå University, 90187, Umeå, Sweden
| | - Gerhard Scheepers
- RISE Research Institutes of Sweden, Drottning Kristinas väg 61, 11428, Stockholm, Sweden
| | - Nicolas Delhomme
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| | - Nathaniel R Street
- Umeå Plant Science Centre (UPSC), Department of Plant Physiology, Umeå University, 90187, Umeå, Sweden
- SciLifeLab, Umeå University, 90187, Umeå, Sweden
| | - Ewa J Mellerowicz
- Umeå Plant Science Centre (UPSC), Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 90183, Umeå, Sweden
| |
Collapse
|
2
|
Donev EN, Derba‐Maceluch M, Yassin Z, Gandla ML, Pramod S, Heinonen E, Kumar V, Scheepers G, Vilaplana F, Johansson U, Hertzberg M, Sundberg B, Winestrand S, Hörnberg A, Alriksson B, Jönsson LJ, Mellerowicz EJ. Field testing of transgenic aspen from large greenhouse screening identifies unexpected winners. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:1005-1021. [PMID: 36668687 PMCID: PMC10106850 DOI: 10.1111/pbi.14012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 11/30/2022] [Accepted: 12/29/2022] [Indexed: 05/04/2023]
Abstract
Trees constitute promising renewable feedstocks for biorefinery using biochemical conversion, but their recalcitrance restricts their attractiveness for the industry. To obtain trees with reduced recalcitrance, large-scale genetic engineering experiments were performed in hybrid aspen blindly targeting genes expressed during wood formation and 32 lines representing seven constructs were selected for characterization in the field. Here we report phenotypes of five-year old trees considering 49 traits related to growth and wood properties. The best performing construct considering growth and glucose yield in saccharification with acid pretreatment had suppressed expression of the gene encoding an uncharacterized 2-oxoglutarate-dependent dioxygenase (2OGD). It showed minor changes in wood chemistry but increased nanoporosity and glucose conversion. Suppressed levels of SUCROSE SYNTHASE, (SuSy), CINNAMATE 4-HYDROXYLASE (C4H) and increased levels of GTPase activating protein for ADP-ribosylation factor ZAC led to significant growth reductions and anatomical abnormalities. However, C4H and SuSy constructs greatly improved glucose yields in saccharification without and with pretreatment, respectively. Traits associated with high glucose yields were different for saccharification with and without pretreatment. While carbohydrates, phenolics and tension wood contents positively impacted the yields without pretreatment and growth, lignin content and S/G ratio were negative factors, the yields with pretreatment positively correlated with S lignin and negatively with carbohydrate contents. The genotypes with high glucose yields had increased nanoporosity and mGlcA/Xyl ratio, and some had shorter polymers extractable with subcritical water compared to wild-type. The pilot-scale industrial-like pretreatment of best-performing 2OGD construct confirmed its superior sugar yields, supporting our strategy.
Collapse
Affiliation(s)
- Evgeniy N. Donev
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
| | - Marta Derba‐Maceluch
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
| | - Zakiya Yassin
- Enhet Produktionssystem och MaterialRISE Research Institutes of SwedenVäxjöSweden
| | | | - Sivan Pramod
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
- Division of Glycoscience, Department of ChemistryKTH Royal Institute of Technology, AlbaNova University CentreStockholmSweden
| | - Emilia Heinonen
- Division of Glycoscience, Department of ChemistryKTH Royal Institute of Technology, AlbaNova University CentreStockholmSweden
- Wallenberg Wood Science Centre (WWSC)KTH Royal Institute of TechnologyStockholmSweden
| | - Vikash Kumar
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
| | - Gerhard Scheepers
- Enhet Produktionssystem och MaterialRISE Research Institutes of SwedenVäxjöSweden
| | - Francisco Vilaplana
- Division of Glycoscience, Department of ChemistryKTH Royal Institute of Technology, AlbaNova University CentreStockholmSweden
- Wallenberg Wood Science Centre (WWSC)KTH Royal Institute of TechnologyStockholmSweden
| | - Ulf Johansson
- Tönnersjöheden Experimental ForestSwedish University of Agricultural SciencesSimlångsdalenSweden
| | | | - Björn Sundberg
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
| | | | | | | | | | - Ewa J. Mellerowicz
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science CentreSwedish University of Agricultural SciencesUmeåSweden
| |
Collapse
|
3
|
Review: Tertiary cell wall of plant fibers as a source of inspiration in material design. Carbohydr Polym 2022; 295:119849. [DOI: 10.1016/j.carbpol.2022.119849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/19/2022] [Accepted: 07/05/2022] [Indexed: 11/23/2022]
|
4
|
Sierra-de-Grado R, Pando V, Voltas J, Zas R, Majada J, Climent J. Straightening the crooked: intraspecific divergence of stem posture control and associated trade-offs in a model conifer. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1222-1235. [PMID: 34865003 PMCID: PMC8866635 DOI: 10.1093/jxb/erab535] [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: 08/02/2021] [Accepted: 12/03/2021] [Indexed: 05/13/2023]
Abstract
Although the straightening capacity of the stem is key for light capture and mechanical stability in forest trees, little is known about its adaptive implications. Assuming that stem straightening is costly, trade-offs are expected with competing processes such as growth, maintenance, and defence. We established a manipulative experiment in a common garden of Pinus pinaster including provenances typically showing either straight-stemmed or crooked-stemmed phenotypes. We imposed a bending up to 35º on plants aged 9 years of both provenance groups and followed the straightening kinetics and shoot elongation after releasing. Eight months later, we destructively assessed biomass partitioning, reaction wood, wood microdensity, xylem reserve carbohydrates, and phloem secondary metabolites. The experimental bending and release caused significant, complex changes with a marked difference between straight- and crooked-type plants. The straight-type recovered verticality faster and to a higher degree and developed more compression wood, while displaying a transitory delay in shoot elongation, reducing resource allocation to defence and maintaining the levels of non-structural carbohydrates compared with the crooked type. This combination of responses indicates the existence of intraspecific divergence in the reaction to mechanical stresses that may be related to different adaptive phenotypic plasticity.
Collapse
Affiliation(s)
- Rosario Sierra-de-Grado
- ETSIA, Universidad de Valladolid, Avda de Madrid 44, 34004 Palencia, Spain
- iuFOR, University Institute for Research in Sustainable Forest Management, Avda de Madrid 44, 34004 Palencia, Spain
- Correspondence:
| | - Valentin Pando
- ETSIA, Universidad de Valladolid, Avda de Madrid 44, 34004 Palencia, Spain
- iuFOR, University Institute for Research in Sustainable Forest Management, Avda de Madrid 44, 34004 Palencia, Spain
| | - Jordi Voltas
- Department of Crop and Forest Sciences, University of Lleida, Av. Alcalde Rovira Roure 191, E-25198 Lleida, Spain
- Joint Research Unit CTFC–AGROTECNIO–CERCA, Av. Alcalde Rovira Roure 191, E-25198 Lleida, Spain
| | - Rafael Zas
- Misión Biológica de Galicia (MBG-CSIC), Apdo 28, 36143 Pontevedra, Spain
| | - Juan Majada
- CETEMAS, Pumarabule s/n, Carbayín, 33936 Asturias, Spain
| | - Jose Climent
- iuFOR, University Institute for Research in Sustainable Forest Management, Avda de Madrid 44, 34004 Palencia, Spain
- Centro de Investigaciones Forestales (INIA-CSIC), Ctra. A Coruña km 7.5, 28040 Madrid, Spain
| |
Collapse
|
5
|
Takata N, Tsuyama T, Nagano S, Baba K, Yasuda Y, Sakamoto S, Mitsuda N, Taniguchi T. Prior secondary cell wall formation is required for gelatinous layer deposition and posture control in gravi-stimulated aspen. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 108:725-736. [PMID: 34396622 DOI: 10.1111/tpj.15466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/19/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Cell walls, especially secondary cell walls (SCWs), maintain cell shape and reinforce wood, but their structure and shape can be altered in response to gravity. In hardwood trees, tension wood is formed along the upper side of a bending stem and contains wood fiber cells that have a gelatinous layer (G-layer) inside the SCW. In a previous study, we generated nst/snd quadruple-knockout aspens (Populus tremula × Populus tremuloides), in which SCW formation was impaired in 99% of the wood fiber cells. In the present study, we produced nst/snd triple-knockout aspens, in which a large number of wood fibers had thinner SCWs than the wild type (WT) and some had no SCW. Because SCW layers are always formed prior to G-layer deposition, the nst/snd mutants raise interesting questions of whether the mutants can form G-layers without SCW and whether they can control their postures in response to changes in gravitational direction. The nst/snd mutants and the WT plants showed growth eccentricity and vessel frequency reduction when grown on an incline, but the triple mutants recovered their upright growth only slightly, and the quadruple mutants were unable to maintain their postures. The mutants clearly showed that the G-layers were formed in SCW-containing wood fibers but not in those lacking the SCW. Our results indicate that SCWs are essential for G-layer formation and posture control. Furthermore, each wood fiber cell may be able to recognize its cell wall developmental stage to initiate the formation of the G-layer as a response to gravistimulation.
Collapse
Affiliation(s)
- Naoki Takata
- Forest Bio-Research Center, Forestry and Forest Products Research Institute, Hitachi, Ibaraki, 319-1301, Japan
| | - Taku Tsuyama
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Miyazaki, 889-2192, Japan
| | - Soichiro Nagano
- Forest Tree Breeding Center, Forestry and Forest Products Research Institute, Forest Research and Management Organization, Hitachi, Ibaraki, 319-1301, Japan
| | - Kei'ichi Baba
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Yuko Yasuda
- Forest Tree Breeding Center, Forestry and Forest Products Research Institute, Forest Research and Management Organization, Hitachi, Ibaraki, 319-1301, Japan
| | - Shingo Sakamoto
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8566, Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Nobutaka Mitsuda
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, 305-8566, Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Toru Taniguchi
- Forest Bio-Research Center, Forestry and Forest Products Research Institute, Hitachi, Ibaraki, 319-1301, Japan
| |
Collapse
|
6
|
Xu W, Cheng H, Zhu S, Cheng J, Ji H, Zhang B, Cao S, Wang C, Tong G, Zhen C, Mu L, Zhou Y, Cheng Y. Functional understanding of secondary cell wall cellulose synthases in Populus trichocarpa via the Cas9/gRNA-induced gene knockouts. THE NEW PHYTOLOGIST 2021; 231:1478-1495. [PMID: 33713445 PMCID: PMC8362133 DOI: 10.1111/nph.17338] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/02/2021] [Indexed: 05/12/2023]
Abstract
Plant cellulose is synthesized by a large plasma membrane-localized cellulose synthase (CesA) complex. However, an overall functional determination of secondary cell wall (SCW) CesAs is still lacking in trees, especially one based on gene knockouts. Here, the Cas9/gRNA-induced knockouts of PtrCesA4, 7A, 7B, 8A and 8B genes were produced in Populus trichocarpa. Based on anatomical, immunohistochemical and wood composition evidence, we gained a comprehensive understanding of five SCW PtrCesAs at the genetic level. Complete loss of PtrCesA4, 7A/B or 8A/B led to similar morphological abnormalities, indicating similar and nonredundant genetic functions. The absence of the gelatinous (G) layer, one-layer-walled fibres and a 90% decrease in cellulose in these mutant woods revealed that the three classes of SCW PtrCesAs are essential for multilayered SCW structure and wood G-fibre. In addition, the mutant primary and secondary phloem fibres lost the n(G + L)- and G-layers and retained the thicker S-layers (L, lignified; S, secondary). Together with polysaccharide immunolocalization data, these findings suggest differences in the role of SCW PtrCesAs-synthesized cellulose in wood and phloem fibre wall structures. Overall, this functional understanding of the SCW PtrCesAs provides further insights into the impact of lacking cellulose biosynthesis on growth, SCW, wood G-fibre and phloem fibre wall structures in the tree.
Collapse
Affiliation(s)
- Wenjing Xu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
- School of ForestryNortheast Forestry UniversityHarbin150040China
| | - Hao Cheng
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Siran Zhu
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Jiyao Cheng
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Huanhuan Ji
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Baocai Zhang
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101China
| | - Shenquan Cao
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Chong Wang
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Guimin Tong
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Cheng Zhen
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| | - Liqiang Mu
- School of ForestryNortheast Forestry UniversityHarbin150040China
| | - Yihua Zhou
- Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing100101China
| | - Yuxiang Cheng
- State Key Laboratory of Tree Genetics and BreedingNortheast Forestry UniversityHarbin150040China
| |
Collapse
|
7
|
Lopez D, Franchel J, Venisse JS, Drevet JR, Label P, Coutand C, Roeckel-Drevet P. Early transcriptional response to gravistimulation in poplar without phototropic confounding factors. AOB PLANTS 2021; 13:plaa071. [PMID: 33542802 PMCID: PMC7850117 DOI: 10.1093/aobpla/plaa071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/30/2020] [Indexed: 05/30/2023]
Abstract
In response to gravistimulation under anisotropic light, tree stems showing an active cambium produce reaction wood that redirects the axis of the trees. Several studies have described transcriptomic or proteomic models of reaction wood relative to the opposite wood. However, the mechanisms leading to the formation of reaction wood are difficult to decipher because so many environmental factors can induce various signalling pathways leading to this developmental reprogramming. Using an innovative isotropic device where the phototropic response does not interfere with gravistimulation we characterized the early molecular responses occurring in the stem of poplar after gravistimulation in an isotropic environment, and without deformation of the stem. After 30 min tilting at 35° under anisotropic light, we collected the upper and lower xylems from the inclined stems. Controls were collected from vertical stems. We used a microarray approach to identify differentially expressed transcripts. High-throughput real-time PCR allowed a kinetic experiment at 0, 30, 120 and 180 min after tilting at 35°, with candidate genes. We identified 668 differentially expressed transcripts, from which we selected 153 candidates for additional Fluidigm qPCR assessment. Five candidate co-expression gene clusters have been identified after the kinetic monitoring of the expression of candidate genes. Gene ontology analyses indicate that molecular reprogramming of processes such as 'wood cell expansion', 'cell wall reorganization' and 'programmed cell death' occur as early as 30 min after gravistimulation. Of note is that the change in the expression of different genes involves a fine regulation of gibberellin and brassinosteroid pathways as well as flavonoid and phosphoinositide pathways. Our experimental set-up allowed the identification of genes regulated in early gravitropic response without the bias introduced by phototropic and stem bending responses.
Collapse
Affiliation(s)
- David Lopez
- CIRAD, UMR AGAP, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Jérôme Franchel
- Université Clermont Auvergne, INRAE, PIAF, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat, TSA, Aubière Cedex, France
| | - Jean-Stéphane Venisse
- Université Clermont Auvergne, INRAE, PIAF, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat, TSA, Aubière Cedex, France
| | - Joël R Drevet
- Université Clermont Auvergne, GReD INSERM U1103-CNRS UMR 6293, Faculté de Médecine, CRBC (Centre de Recherche Bio-Clinique), Clermont-Ferrand, France
| | - Philippe Label
- Université Clermont Auvergne, INRAE, PIAF, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat, TSA, Aubière Cedex, France
| | - Catherine Coutand
- INRAE, UR 115 PSH, Centre de recherche PACA, 228, route de l’aérodrome, CS, Avignon Cedex, France
| | - Patricia Roeckel-Drevet
- Université Clermont Auvergne, INRAE, PIAF, Campus Universitaire des Cézeaux, 1 Impasse Amélie Murat, TSA, Aubière Cedex, France
| |
Collapse
|
8
|
Hilpmann G, Kurzhals P, Reuter T, Ayubi MM. Reaction Kinetics of One-Pot Xylan Conversion to Xylitol via Precious Metal Catalyst. FRONTIERS IN CHEMICAL ENGINEERING 2020. [DOI: 10.3389/fceng.2020.600936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The hydrolytic hydrogenation of xylan to xylitol by a one-pot process was studied in detail in a batch reactor. The reaction was catalyzed by a combination of diluted sulfuric acid and precious metal Ru on carbon powder. Process parameters were varied between 120–150°C, while maintaining constant hydrogen pressure at 20 bar and an acid concentration equivalent to pH 2. The xylan solution consisted of 1 wt% beechwood powder (Carl Roth, >90%) in deionized water. Sulfuric acid was added to the solution until pH two was reached, then the 0.3 wt% catalyst powder (5% Ru on Act. C) was added and the solution was put into the batch reactor. The first approach of kinetic modeling began with conventional first-order kinetics and compared this to a more complex model based on Langmuir–Hinshelwood kinetics. The xylan and xylitol data reached a good fit. However, the modeling results also showed that the rate-limiting step of xylose-formation was still not represented in a satisfactory manner. Therefore, the model was adapted and developed further. The advanced model finally showed a good fit with the intermediate product xylose and the target product xylitol. The overall modeling methods and results are presented and discussed.
Collapse
|
9
|
Thibaut B. Three-dimensional printing, muscles, and skeleton: mechanical functions of living wood. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:3453-3466. [PMID: 30957846 DOI: 10.1093/jxb/erz153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Wood is well defined as an engineering material. However, living wood in the tree is often regarded only as a passive skeleton consisting of a sophisticated pipe system for the ascent of sap and a tree-like structure made of a complex material to resist external forces. There are two other active key roles of living wood in the field of biomechanics: (i) additive manufacturing of the whole structure by cell division and expansion, and (ii) a 'muscle' function of living fibres or tracheids generating forces at the sapwood periphery. The living skeleton representing most of the sapwood is a mere accumulation of dead tracheids and libriform fibres after their programmed cell death. It keeps a record of the two active roles of living wood in its structure, chemical composition, and state of residual stresses. Models and field experiments define four biomechanical traits based on stem geometry and parameters of wood properties resulting from additive manufacturing and force generation. Geometric parameters resulting from primary and secondary growth play the larger role. Passive wood properties are only secondary parameters, while dissymmetric force generation is key for movement, posture control, and tree reshaping after accidents.
Collapse
Affiliation(s)
- Bernard Thibaut
- Laboratoire de Mécanique et Génie Civil, Université de Montpellier, CNRS, Montpellier, France
| |
Collapse
|
10
|
Peng H, Salmén L, Stevanic JS, Lu J. Structural organization of the cell wall polymers in compression wood as revealed by FTIR microspectroscopy. PLANTA 2019; 250:163-171. [PMID: 30953149 DOI: 10.1007/s00425-019-03158-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
Glucomannan was more strongly oriented, in line with the orientation of cellulose, than the xylan in both compression wood and normal wood of Chinese fir. Lignin in compression wood was somewhat more oriented in the direction of the cellulose microfibrils than in normal wood. The structural organization in compression wood (CW) is quite different from that in normal wood (NW). To shed more light on the structural organization of the polymers in plant cell walls, Fourier Transform Infrared (FTIR) microscopy in transmission mode has been used to compare the S2-dominated mean orientation of wood polymers in CW with that in NW from Chinese fir (Cunninghamia lanceolata). Polarized FTIR measurements revealed that in both CW and NW samples, glucomannan and xylan showed a parallel orientation with respect to the cellulose microfibrils. In both wood samples, the glucomannan showed a much greater degree of orientation than the xylan, indicating that the glucomannan has established a stronger interaction with cellulose than xylan. For the lignin, the absorption peak also indicated an orientation along the direction of the cellulose microfibrils, but this orientation was more pronounced in CW than in NW, indicating that the lignin is affected by the orientation of the cellulose microfibrils more strongly in CW than it is in NW.
Collapse
Affiliation(s)
- Hui Peng
- Research Institute of Wood Industry of Chinese Academy of Forestry, Hunan Collaborative Innovation Center for Effective Utilizing of Wood and Bamboo Resources, Beijing, 100091, People's Republic of China
| | | | | | - Jianxiong Lu
- Research Institute of Wood Industry of Chinese Academy of Forestry, Hunan Collaborative Innovation Center for Effective Utilizing of Wood and Bamboo Resources, Beijing, 100091, People's Republic of China.
| |
Collapse
|
11
|
Felten J, Vahala J, Love J, Gorzsás A, Rüggeberg M, Delhomme N, Leśniewska J, Kangasjärvi J, Hvidsten TR, Mellerowicz EJ, Sundberg B. Ethylene signaling induces gelatinous layers with typical features of tension wood in hybrid aspen. THE NEW PHYTOLOGIST 2018. [PMID: 29528503 DOI: 10.1111/nph.15078] [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: 05/07/2023]
Abstract
The phytohormone ethylene impacts secondary stem growth in plants by stimulating cambial activity, xylem development and fiber over vessel formation. We report the effect of ethylene on secondary cell wall formation and the molecular connection between ethylene signaling and wood formation. We applied exogenous ethylene or its precursor 1-aminocyclopropane-1-carboxylic acid (ACC) to wild-type and ethylene-insensitive hybrid aspen trees (Populus tremula × tremuloides) and studied secondary cell wall anatomy, chemistry and ultrastructure. We furthermore analyzed the transcriptome (RNA Seq) after ACC application to wild-type and ethylene-insensitive trees. We demonstrate that ACC and ethylene induce gelatinous layers (G-layers) and alter the fiber cell wall cellulose microfibril angle. G-layers are tertiary wall layers rich in cellulose, typically found in tension wood of aspen trees. A vast majority of transcripts affected by ACC are downstream of ethylene perception and include a large number of transcription factors (TFs). Motif-analyses reveal potential connections between ethylene TFs (Ethylene Response Factors (ERFs), ETHYLENE INSENSITIVE 3/ETHYLENE INSENSITIVE3-LIKE1 (EIN3/EIL1)) and wood formation. G-layer formation upon ethylene application suggests that the increase in ethylene biosynthesis observed during tension wood formation is important for its formation. Ethylene-regulated TFs of the ERF and EIN3/EIL1 type could transmit the ethylene signal.
Collapse
Affiliation(s)
- Judith Felten
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | - Jorma Vahala
- Department of Biosciences, Division of Plant Biology, University of Helsinki, FI-00014, Helsinki, Finland
| | - Jonathan Love
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | - András Gorzsás
- Department of Chemistry, Umeå University, SE-901 83, Umeå, Sweden
| | - Markus Rüggeberg
- Swiss Federal Institute of Technology Zurich (ETH Zurich), Institute for Building Materials, CH-8093, Zurich, Switzerland
- Swiss Federal Laboratories of Materials Science and Technology, Laboratory of Applied Wood Materials, CH-8600, Dubendorf, Switzerland
| | - Nicolas Delhomme
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | - Joanna Leśniewska
- Institute of Biology, University in Białystok, Ciołkowskiego 1J, 15-245, Białystok, Poland
| | - Jaakko Kangasjärvi
- Department of Biosciences, Division of Plant Biology, University of Helsinki, FI-00014, Helsinki, Finland
| | - Torgeir R Hvidsten
- Umeå Plant Science Centre, Department of Plant Physiology, Umeå University, SE-901 83, Umeå, Sweden
- Faculty of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Ewa J Mellerowicz
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | - Björn Sundberg
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| |
Collapse
|
12
|
Escamez S, Latha Gandla M, Derba-Maceluch M, Lundqvist SO, Mellerowicz EJ, Jönsson LJ, Tuominen H. A collection of genetically engineered Populus trees reveals wood biomass traits that predict glucose yield from enzymatic hydrolysis. Sci Rep 2017; 7:15798. [PMID: 29150693 PMCID: PMC5693926 DOI: 10.1038/s41598-017-16013-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/06/2017] [Indexed: 11/09/2022] Open
Abstract
Wood represents a promising source of sugars to produce bio-based renewables, including biofuels. However, breaking down lignocellulose requires costly pretreatments because lignocellulose is recalcitrant to enzymatic saccharification. Increasing saccharification potential would greatly contribute to make wood a competitive alternative to petroleum, but this requires improving wood properties. To identify wood biomass traits associated with saccharification, we analyzed a total of 65 traits related to wood chemistry, anatomy and structure, biomass production and saccharification in 40 genetically engineered Populus tree lines. These lines exhibited broad variation in quantitative traits, allowing for multivariate analyses and mathematical modeling. Modeling revealed that seven wood biomass traits associated in a predictive manner with saccharification of glucose after pretreatment. Four of these seven traits were also negatively associated with biomass production, suggesting a trade-off between saccharification potential and total biomass, which has previously been observed to offset the overall sugar yield from whole trees. We therefore estimated the "total-wood glucose yield" (TWG) from whole trees and found 22 biomass traits predictive of TWG after pretreatment. Both saccharification and TWG were associated with low abundant, often overlooked matrix polysaccharides such as arabinose and rhamnose which possibly represent new markers for improved Populus feedstocks.
Collapse
Affiliation(s)
- Sacha Escamez
- Department of Plant Physiology, Umeå University, Umeå Plant Science Centre (UPSC), SE-901 87, Umeå, Sweden.
| | | | - Marta Derba-Maceluch
- Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå Plant Science Centre (UPSC), SE-901 83, Umeå, Sweden
| | - Sven-Olof Lundqvist
- INNVENTIA AB, RISE Bioeconomy, Drottning Kristinas väg 61 B, SE-114 28, Stockholm, Sweden
| | - Ewa J Mellerowicz
- Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå Plant Science Centre (UPSC), SE-901 83, Umeå, Sweden
| | - Leif J Jönsson
- Department of Chemistry, Umeå University, SE-901 87, Umeå, Sweden
| | - Hannele Tuominen
- Department of Plant Physiology, Umeå University, Umeå Plant Science Centre (UPSC), SE-901 87, Umeå, Sweden.
| |
Collapse
|
13
|
Bygdell J, Srivastava V, Obudulu O, Srivastava MK, Nilsson R, Sundberg B, Trygg J, Mellerowicz EJ, Wingsle G. Protein expression in tension wood formation monitored at high tissue resolution in Populus. JOURNAL OF EXPERIMENTAL BOTANY 2017; 68:3405-3417. [PMID: 28633298 PMCID: PMC5853651 DOI: 10.1093/jxb/erx186] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2017] [Accepted: 05/30/2017] [Indexed: 05/18/2023]
Abstract
Tension wood (TW) is a specialized tissue with contractile properties that is formed by the vascular cambium in response to gravitational stimuli. We quantitatively analysed the proteomes of Populus tremula cambium and its xylem cell derivatives in stems forming normal wood (NW) and TW to reveal the mechanisms underlying TW formation. Phloem-, cambium-, and wood-forming tissues were sampled by tangential cryosectioning and pooled into nine independent samples. The proteomes of TW and NW samples were similar in the phloem and cambium samples, but diverged early during xylogenesis, demonstrating that reprogramming is an integral part of TW formation. For example, 14-3-3, reactive oxygen species, ribosomal and ATPase complex proteins were found to be up-regulated at early stages of xylem differentiation during TW formation. At later stages of xylem differentiation, proteins involved in the biosynthesis of cellulose and enzymes involved in the biosynthesis of rhamnogalacturonan-I, rhamnogalacturonan-II, arabinogalactan-II and fasciclin-like arabinogalactan proteins were up-regulated in TW. Surprisingly, two isoforms of exostosin family proteins with putative xylan xylosyl transferase function and several lignin biosynthesis proteins were also up-regulated, even though xylan and lignin are known to be less abundant in TW than in NW. These data provided new insight into the processes behind TW formation.
Collapse
Affiliation(s)
- Joakim Bygdell
- Department of Chemistry, Umeå University, Umeå, Sweden
- Computational life science cluster (CLiC), Umeå University, Sweden
| | - Vaibhav Srivastava
- Division of Glycoscience, School of Biotechnology, Royal Institute of Technology, AlbaNova University Centre, Stockholm, Sweden
| | - Ogonna Obudulu
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Manoj K Srivastava
- Crop Improvement Division, Indian Grassland and Fodder Research Institute, Jhansi, UP, India
| | - Robert Nilsson
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Björn Sundberg
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Johan Trygg
- Department of Chemistry, Umeå University, Umeå, Sweden
- Computational life science cluster (CLiC), Umeå University, Sweden
| | - Ewa J Mellerowicz
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Gunnar Wingsle
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, Sweden
| |
Collapse
|
14
|
Zhang M, Chavan RR, Smith BG, McArdle BH, Harris PJ. Tracheid cell-wall structures and locations of (1 → 4)-β-D-galactans and (1 → 3)-β-D-glucans in compression woods of radiata pine (Pinus radiata D. Don). BMC PLANT BIOLOGY 2016; 16:194. [PMID: 27604684 PMCID: PMC5015220 DOI: 10.1186/s12870-016-0884-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 08/25/2016] [Indexed: 05/12/2023]
Abstract
BACKGROUND Compression wood (CW) forms on the underside of tilted stems of coniferous gymnosperms and opposite wood (OW) on the upperside. The tracheid walls of these wood types differ structurally and chemically. Although much is known about the most severe form of CW, severe CW (SCW), mild CWs (MCWs), also occur, but less is known about them. In this study, tracheid wall structures and compositions of two grades of MCWs (1 and 2) and SCW were investigated and compared with OW in slightly tilted radiata pine (Pinus radiata) stems. RESULTS The four wood types were identified by the distribution of lignin in their tracheid walls. Only the tracheid walls of OW and MCW1 had a S3 layer and this was thin in MCW1. The tracheid walls of only SCW had a S2 layer with helical cavities in the inner region (S2i). Using immunomicroscopy, (1 → 4)-β-D-galactans and (1 → 3)-β-D-glucans were detected in the tracheid walls of all CWs, but in only trace amounts in OW. The (1 → 4)-β-D-galactans were located in the outer region of the S2 layer, whereas the (1 → 3)-β-D-glucans were in the inner S2i region. The areas and intensities of labelling increased with CW severity. The antibody for (1 → 4)-β-D-galactans was also used to identify the locations and relative amounts of these galactans in whole stem cross sections based on the formation of an insoluble dye. Areas containing the four wood types were clearly differentiated depending on colour intensity. The neutral monosaccharide compositions of the non-cellulosic polysaccharides of these wood types were determined on small, well defined discs, and showed the proportion of galactose was higher for CWs and increased with severity. CONCLUSION The presence of an S3 wall layer is a marker for very MCW and the presence of helical cavities in the S2 wall layer for SCW. The occurrence and proportions of (1 → 4)-β-D-galactans and (1 → 3)-β-D-glucans can be used as markers for CW and its severity. The proportions of galactose were consistent with the labelling results for (1 → 4)-β-D-galactans.
Collapse
Affiliation(s)
- Miao Zhang
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142 New Zealand
| | - Ramesh R. Chavan
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142 New Zealand
| | - Bronwen G. Smith
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142 New Zealand
| | - Brian H. McArdle
- Department of Statistics, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142 New Zealand
| | - Philip J. Harris
- School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142 New Zealand
| |
Collapse
|
15
|
Groover A. Gravitropisms and reaction woods of forest trees - evolution, functions and mechanisms. THE NEW PHYTOLOGIST 2016; 211:790-802. [PMID: 27111862 DOI: 10.1111/nph.13968] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 03/15/2016] [Indexed: 05/03/2023]
Abstract
Contents 790 I. 790 II. 792 III. 795 IV. 797 V. 798 VI. 800 VII. 800 800 References 800 SUMMARY: The woody stems of trees perceive gravity to determine their orientation, and can produce reaction woods to reinforce or change their position. Together, graviperception and reaction woods play fundamental roles in tree architecture, posture control, and reorientation of stems displaced by wind or other environmental forces. Angiosperms and gymnosperms have evolved strikingly different types of reaction wood. Tension wood of angiosperms creates strong tensile force to pull stems upward, while compression wood of gymnosperms creates compressive force to push stems upward. In this review, the general features and evolution of tension wood and compression wood are presented, along with descriptions of how gravitropisms and reaction woods contribute to the survival and morphology of trees. An overview is presented of the molecular and genetic mechanisms underlying graviperception, initial graviresponse and the regulation of tension wood development in the model angiosperm, Populus. Critical research questions and new approaches are discussed.
Collapse
Affiliation(s)
- Andrew Groover
- Pacific Southwest Research Station, US Forest Service, Davis, CA, 95618, USA
- Department of Plant Biology, University of California Davis, Davis, CA, 95616, USA
| |
Collapse
|
16
|
Roussel JR, Clair B. Evidence of the late lignification of the G-layer in Simarouba tension wood, to assist understanding how non-G-layer species produce tensile stress. TREE PHYSIOLOGY 2015; 35:1366-77. [PMID: 26427915 DOI: 10.1093/treephys/tpv082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/01/2015] [Indexed: 05/13/2023]
Abstract
To recover verticality after disturbance, angiosperm trees produce 'tension wood' allowing them to bend actively. The driving force of the tension has been shown to take place in the G-layer, a specific unlignified layer of the cell wall observed in most temperate species. However, in tropical rain forests, the G-layer is often absent and the mechanism generating the forces to reorient trees remains unclear. A study was carried out on tilted seedlings, saplings and adult Simarouba amara Aubl. trees-a species known to not produce a G-layer. Microscopic observations were done on sections of normal and tension wood after staining or observed under UV light to assess the presence/absence of lignin. We showed that S. amara produces a cell-wall layer with all of the characteristics typical of G-layers, but that this G-layer can be observed only as a temporary stage of the cell-wall development because it is masked by a late lignification. Being thin and lignified, tension wood fibres cannot be distinguished from normal wood fibres in the mature wood of adult trees. These observations indicate that the mechanism generating the high tensile stress in tension wood is likely to be the same as that in species with a typical G-layer and also in species where the G-layer cannot be observed in mature cells.
Collapse
Affiliation(s)
- Jean-Romain Roussel
- CNRS, UMR Ecologie des Forêts de Guyane (EcoFoG), Campus Agronomique, BP 701, 97387 Kourou, France
| | - Bruno Clair
- CNRS, UMR Ecologie des Forêts de Guyane (EcoFoG), Campus Agronomique, BP 701, 97387 Kourou, France
| |
Collapse
|
17
|
Gritsch C, Wan Y, Mitchell RAC, Shewry PR, Hanley SJ, Karp A. G-fibre cell wall development in willow stems during tension wood induction. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:6447-59. [PMID: 26220085 PMCID: PMC4588891 DOI: 10.1093/jxb/erv358] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Willows (Salix spp.) are important as a potential feedstock for bioenergy and biofuels. Previous work suggested that reaction wood (RW) formation could be a desirable trait for biofuel production in willows as it is associated with increased glucose yields, but willow RW has not been characterized for cell wall components. Fasciclin-like arabinogalactan (FLA) proteins are highly up-regulated in RW of poplars and are considered to be involved in cell adhesion and cellulose biosynthesis. COBRA genes are involved in anisotropic cell expansion by modulating the orientation of cellulose microfibril deposition. This study determined the temporal and spatial deposition of non-cellulosic polysaccharides in cell walls of the tension wood (TW) component of willow RW and compared it with opposite wood (OW) and normal wood (NW) using specific antibodies and confocal laser scanning microscopy and transmission electron microscopy. In addition, the expression patterns of an FLA gene (SxFLA12) and a COBRA-like gene (SxCOBL4) were compared using RNA in situ hybridization. Deposition of the non-cellulosic polysaccharides (1-4)-β-D-galactan, mannan and de-esterified homogalacturonan was found to be highly associated with TW, often with the G-layer itself. Of particular interest was that the G-layer itself can be highly enriched in (1-4)-β-D-galactan, especially in G-fibres where the G-layer is still thickening, which contrasts with previous studies in poplar. Only xylan showed a similar distribution in TW, OW, and NW, being restricted to the secondary cell wall layers. SxFLA12 and SxCOBL4 transcripts were specifically expressed in developing TW, confirming their importance. A model of polysaccharides distribution in developing willow G-fibre cells is presented.
Collapse
Affiliation(s)
- Cristina Gritsch
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
| | - Yongfang Wan
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
| | | | - Peter R Shewry
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
| | - Steven J Hanley
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
| | - Angela Karp
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
| |
Collapse
|
18
|
Mauriat M, Leplé JC, Claverol S, Bartholomé J, Negroni L, Richet N, Lalanne C, Bonneu M, Coutand C, Plomion C. Quantitative Proteomic and Phosphoproteomic Approaches for Deciphering the Signaling Pathway for Tension Wood Formation in Poplar. J Proteome Res 2015; 14:3188-203. [PMID: 26112267 DOI: 10.1021/acs.jproteome.5b00140] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Trees adjust their growth following forced changes in orientation to re-establish a vertical position. In angiosperms, this adjustment involves the differential regulation of vascular cambial activity between the lower (opposite wood) and upper (tension wood) sides of the leaning stem. We investigated the molecular mechanisms leading to the formation of differential wood types through a quantitative proteomic and phosphoproteomic analysis on poplar subjected to a gravitropic stimulus. We identified and quantified 675 phosphopeptides, corresponding to 468 phosphoproteins, and 3 763 nonphosphorylated peptides, corresponding to 1 155 proteins, in the differentiating xylem of straight-growing trees (control) and trees subjected to a gravitational stimulus during 8 weeks. About 1% of the peptides were specific to a wood type (straight, opposite, or tension wood). Proteins quantified in more than one type of wood were more numerous: a mixed linear model showed 389 phosphopeptides and 556 proteins to differ in abundance between tension wood and opposite wood. Twenty-one percent of the phosphoproteins identified here were described in their phosphorylated form for the first time. Our analyses revealed remarkable developmental molecular plasticity, with wood type-specific phosphorylation events, and highlighted the involvement of different proteins in the biosynthesis of cell wall components during the formation of the three types of wood.
Collapse
Affiliation(s)
- Mélanie Mauriat
- †INRA, UMR 1202 BIOGECO, F-33610 Cestas, France.,‡Univ. Bordeaux, BIOGECO, UMR1202, F-33615 Pessac, France
| | - Jean-Charles Leplé
- §INRA, UR0588 AGPF, 2163 Avenue de la Pomme de Pin, CS 40001 Ardon, F-45075 Orléans Cedex 2, France
| | - Stéphane Claverol
- ⊥Plateforme Protéome, CGFB, Université Bordeaux Segalen, F-33076 Bordeaux, France
| | - Jérôme Bartholomé
- †INRA, UMR 1202 BIOGECO, F-33610 Cestas, France.,‡Univ. Bordeaux, BIOGECO, UMR1202, F-33615 Pessac, France
| | - Luc Negroni
- ⊥Plateforme Protéome, CGFB, Université Bordeaux Segalen, F-33076 Bordeaux, France
| | - Nicolas Richet
- §INRA, UR0588 AGPF, 2163 Avenue de la Pomme de Pin, CS 40001 Ardon, F-45075 Orléans Cedex 2, France
| | - Céline Lalanne
- †INRA, UMR 1202 BIOGECO, F-33610 Cestas, France.,‡Univ. Bordeaux, BIOGECO, UMR1202, F-33615 Pessac, France
| | - Marc Bonneu
- ⊥Plateforme Protéome, CGFB, Université Bordeaux Segalen, F-33076 Bordeaux, France
| | - Catherine Coutand
- ¶INRA, UMR 547 PIAF, 234 Avenue du Brézet, F-63100 Clermont-Ferrand, France.,∥Clermont Université, Université Blaise Pascal, UMR 547 PIAF, F-63100 Clermont-Ferrand, France
| | - Christophe Plomion
- †INRA, UMR 1202 BIOGECO, F-33610 Cestas, France.,‡Univ. Bordeaux, BIOGECO, UMR1202, F-33615 Pessac, France
| |
Collapse
|