Pulping performance of transgenic poplar with depressed Caffeoyl-CoA O-methyltransferase

Wei, Jianhua; Wang, YanZhen; Wang, HongZhi; Li, RuiFen; Lin, Nan; Ma, Ruijie; Qu, Le-Qing; Song, Yanru

doi:10.1007/s11434-008-0477-0

Cited by 19 publications

(10 citation statements)

References 17 publications

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“…Finally, although many studies have demonstrated the beneficial effects of lignin engineering on end-use applications, such as pulping and saccharification in the laboratory, only a few studies have evaluated modified plants in the field (Boerjan, 2005;Kawaoka et al, 2006;Hopkins et al, 2007;Leplé et al, 2007;Wadenbäck et al, 2008;Wei et al, 2008;Walter et al, 2010). However, in the field, plants are exposed to various conditions and stresses caused by weather and pests that are difficult or even impossible to mimic in a greenhouse.…”

Section: Trends and Research Avenuesmentioning

confidence: 99%

Lignin Biosynthesis and Structure

et al. 2010

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Section: Trends and Research Avenuesmentioning

confidence: 99%

Lignin Biosynthesis and Structure

et al. 2010

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“…The ratio of S and G (S/G) is an important parameter in paper industry 20 , it can be influenced by C3H, COMT, CCoAOMT and F5H 21 . Down-regulation of C3H gene and CCoAOMT gene can increase S/G, which will contribute to delignification 8 – 11 , 22 .…”

Section: Introductionmentioning

confidence: 99%

Preliminary study of Cell Wall Structure and its Mechanical Properties of C3H and HCT RNAi Transgenic Poplar Sapling

Zhou

Ren

et al. 2018

Sci Rep

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This research focused on the cell wall structure and its mechanical properties of down-regulated Coumaroyl shikimate 3-hydroxylase (C3H) transgenic poplar and down-regulated hydroxycinnamoyl CoA: shikimate hydroxycinnamoyl transferase (HCT) transgenic poplar (Populus alba × P. glandulosa cv ‘84 k’). The wood samples with respect to microstructure, the longitudinal elastic modulus (MOE) and hardness of wood fiber secondary cell wall were investigated. The results show that the lignin contents in the two transgenic poplar woods were lower than non-modified wood. The C3H transgenic poplar and HCT transgenic poplar have more than 18.5% and 16.1% cellulose crystalline regions than non-modified poplar respectively. The diameter of the fiber cell and the vessel element of transgenic poplars are smaller. Double radial vessel cell wall thicknesses of both transgenic poplars were smaller than non-modified poplar. Cell wall ratios for the transgenic poplar were higher than non-modified poplar and cell wall density was significantly lower in both C3H and HCT transgenic poplar. The cell wall MOEs of C3H and HCT transgenic poplar was 5.8% and 7.0% higher than non-modified poplar. HCT can be more effective than C3H to modify the trees by considerably increasing mechanical properties of the cell wall.

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“…22,23 Suppression of CCoAOMT also led to an increase in S/G ratio. 23,24 However, the alternation of lignin had no significant effect on plant growth and morphology. 22 Expression of an antisense CCR gene in Norway spruce resulted in up to an 8% reduction in lignin content.…”

Section: Cellulose Biosynthesis and Genetic Modificationmentioning

confidence: 98%

Genetic modification of wood quality for second-generation biofuel production

Li²,

Zhou³

2010

GM Crops

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How the abundant tree biomass resources can be efficiently used for future biofuel production has attracted a great deal of interest and discussion in the past few years. Capable technologies are expected to be developed to realize the production of biofuel from wood biomass. A significant effort is put into the field of modifying wood properties of trees and simplifying the process of biomass-to-ethanol conversion, which includes mainly genetic engineering of lignin, cellulose and hemicellulose of woods. Current research in this field has achieved some promising results and opened up new opportunities to utilize wood biomass efficiently. This review will discuss the main developments in genetic modification of lignin, cellulose and hemicellulose biosynthesis in trees as well as other potential genetic technology of biofuel production from wood biomass.

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Pulping performance of transgenic poplar with depressed Caffeoyl-CoA O-methyltransferase

Cited by 19 publications

References 17 publications

Lignin Biosynthesis and Structure

Lignin Biosynthesis and Structure

Preliminary study of Cell Wall Structure and its Mechanical Properties of C3H and HCT RNAi Transgenic Poplar Sapling

Genetic modification of wood quality for second-generation biofuel production

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