Ectopic callose deposition into woody biomass modulates the nano-architecture of macrofibrils

Bourdon, MatthieuThe Sainsbury Laboratory, University of Cambridge, Cambridge, UK; Friedrich Miescher Institute for Biomedical Research (FMI), Basel, Switzerland (författare)

QC 20231115
Plant biomass plays an increasingly important role in the circular bioeconomy, replacing non-renewable fossil resources. Genetic engineering of this lignocellulosic biomass could benefit biorefinery transformation chains by lowering economic and technological barriers to industrial processing. However, previous efforts have mostly targeted the major constituents of woody biomass: cellulose, hemicellulose and lignin. Here we report the engineering of wood structure through the introduction of callose, a polysaccharide novel to most secondary cell walls. Our multiscale analysis of genetically engineered poplar trees shows that callose deposition modulates cell wall porosity, water and lignin contents and increases the lignin–cellulose distance, ultimately resulting in substantially decreased biomass recalcitrance. We provide a model of the wood cell wall nano-architecture engineered to accommodate the hydrated callose inclusions. Ectopic polymer introduction into biomass manifests in new physico-chemical properties and offers new avenues when considering lignocellulose engineering.

Vilaplana, Francisco,1979-KTH,Glykovetenskap,Wallenberg Wood Science Center(Swepub:kth)u173a4yy (författare)
Bulone, VincentKTH,Glykovetenskap,College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia(Swepub:kth)u13o1auq (författare)
Helariutta, YkäThe Sainsbury Laboratory, University of Cambridge, Cambridge, UK; Wood Development Group, University of Helsinki, Helsinki, Finland; Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences and Viikki Plant Science Centre, University of Helsinki, Helsinki, Finland (författare)
Miskolczi, Pal CsabaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology(Swepub:slu)48929 (författare)
Bhalerao, Rishikesh P.Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skoglig genetik och växtfysiologi,Department of Forest Genetics and Plant Physiology(Swepub:slu)48176 (författare)
The Sainsbury Laboratory, University of Cambridge, Cambridge, UK; Friedrich Miescher Institute for Biomedical Research (FMI), Basel, SwitzerlandGlykovetenskap (creator_code:org_t)
Sveriges lantbruksuniversitet

Av författaren/redakt...: Bourdon, Matthie ...; Vilaplana, Franc ...; Bulone, Vincent; Helariutta, Ykä; Miskolczi, Pal C ...; Bhalerao, Rishik ...

Om ämnet

LANTBRUKSVETENSKAPER: LANTBRUKSVETENSK ...; och Bioteknologi med ...; och Växtbioteknologi

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Kemiteknik; och Polymerteknologi

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