Plant cell wall reconstruction toward improved lignocellulosic production and processability

Abramson, Miron; Shoseyov, Oded; Shani, Ziv

doi:10.1016/j.plantsci.2009.11.003

Cited by 156 publications

(125 citation statements)

References 151 publications

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“…Lignocellulosic biomass is a renewable natural resource for the carbon-neutral production of biofuels and biochemicals (Vanholme et al, 2013a;Wilkerson et al, 2014;Welker et al, 2015) that is readily available from agricultural crop residues, inedible plant tissues, or dedicated biomass crops (Abramson et al, 2010). Plant secondary cell walls, which make up the bulk of lignocellulosic biomass, are composed mainly of cellulose, hemicelluloses, and lignin.…”

mentioning

confidence: 99%

Silencing CHALCONE SYNTHASE in Maize Impedes the Incorporation of Tricin into Lignin and Increases Lignin Content

et al. 2016

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Lignin is a phenolic heteropolymer that is deposited in secondary-thickened cell walls, where it provides mechanical strength. A recent structural characterization of cell walls from monocot species showed that the flavone tricin is part of the native lignin polymer, where it is hypothesized to initiate lignin chains. In this study, we investigated the consequences of altered tricin levels on lignin structure and cell wall recalcitrance by phenolic profiling, nuclear magnetic resonance, and saccharification assays of the naturally silenced maize (Zea mays) C2-Idf (inhibitor diffuse) mutant, defective in the CHALCONE SYNTHASE Colorless2 (C2) gene. We show that the C2-Idf mutant produces highly reduced levels of apigenin-and tricin-related flavonoids, resulting in a strongly reduced incorporation of tricin into the lignin polymer. Moreover, the lignin was enriched in b-b and b-5 units, lending support to the contention that tricin acts to initiate lignin chains and that, in the absence of tricin, more monolignol dimerization reactions occur. In addition, the C2-Idf mutation resulted in strikingly higher Klason lignin levels in the leaves. As a consequence, the leaves of C2-Idf mutants had significantly reduced saccharification efficiencies compared with those of control plants. These findings are instructive for lignin engineering strategies to improve biomass processing and biochemical production.

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confidence: 99%

Silencing CHALCONE SYNTHASE in Maize Impedes the Incorporation of Tricin into Lignin and Increases Lignin Content

et al. 2016

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“…Due to the complex structure of plant cell walls, lignocellulosic biomass is more difficult to break down into sugars than starch [9]. Therefore, processing of lignocellulosic biomass to bioethanol consists of four major unit operations: pretreatment, enzymatic hydrolysis, fermentation and product separation/purification [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Influence of Biomass Pretreatment Process Time on Furfural Extraction from Birch Wood

Brazdausks¹,

Puķe²,

Vederņikovs³

et al. 2013

Scientific Journal of Riga Technical University. Environmental and Climate Technologies

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-Furfural is a biomass derived-chemical that can be used to replace petrochemicals. In this study, dilute sulphuric acid hydrolysis was used for hemicelluloses secession from birch wood. The reaction was investigated at different biomass treatment times (10-90 min, increasing it by 10 min). We found that the greatest amount of furfural 1.4-2.6%, which is 9.7-17.7% from theoretical possible yield, was formed in the first 30 min of the beginning of birch wood pentoses monosaccharide dehydration, but the greatest yield of furfural 10.3%, which is 70.0% from the theoretical yield, can be obtained after 90 min. Given that furfural yield generally does not exceed 50% from the theoretical amount, the result can be considered as very good.

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“…Typical components of pectin is uronic acids, which are found in glucuronoarabinoxylans and galactosyluronic acid-rich pectin [64]. Pectin can form a macromolecular wall-network through molecular substitution with side chains associated with cellulose or hemicelluloses [65,66]. It implying that plays a role in preserving cell wall structure and biomass enzymatic digestibility.…”

Section: Pectinmentioning

confidence: 99%

Advances in Genetic Manipulation of Lignocellulose to Reduce Biomass Recalcitrance and Enhance Biofuel Production in Bioenergy Crops

Madadi¹,

Penga²,

Abbas³

2017

J Plant Biochem Physiol

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Lignocellulose biomass derived from plant cell walls is a rich source of biopolymers for the production of biofuels. Biomass recalcitrance is the noticeable and main features of lignocellulose which can reduces by genetic modification of plant cell wall. The aim of the present review is to provide the reader a new insight for enhancing biomass yield and biofuels production. This can be issued by focusing on major perennial grasses, cereal crops and woody feedstock which have high biomass yield or large biomass residues and also the effects of distinctive cell wall polymers (cellulose, hemicellulose, lignin, and pectin) on the enzymatic saccharification of biomass under different pretreatments. Moreover the present review paper will also major gene candidates which are involved plant cell wall biosynthesis, degradation and modification for improving biomass yield and digestibility in transgenic plants and genetic mutants.

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Plant cell wall reconstruction toward improved lignocellulosic production and processability

Cited by 156 publications

References 151 publications

Silencing CHALCONE SYNTHASE in Maize Impedes the Incorporation of Tricin into Lignin and Increases Lignin Content

Silencing CHALCONE SYNTHASE in Maize Impedes the Incorporation of Tricin into Lignin and Increases Lignin Content

Influence of Biomass Pretreatment Process Time on Furfural Extraction from Birch Wood

Advances in Genetic Manipulation of Lignocellulose to Reduce Biomass Recalcitrance and Enhance Biofuel Production in Bioenergy Crops

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