Cellulosic Fibers: Role of Matrix Polysaccharides in Structure and Function

Mikshina, Polina; Chernova, Tatyana; Chemikosova, S. B.; Ibragimova, N. N.; Mokshina, Natalia; Gorshkov, Tatyana

doi:10.5772/51941

Cited by 37 publications

(60 citation statements)

References 86 publications

(146 reference statements)

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“…Recent advances in biochemistry immunocytochemistry and molecular biology have evidenced a complex chemical composition of the matrix, specific to the G-layer as opposed to other secondary layers [50]. Although xyloglucans and xyloglucan endotransglucosylase (XET) activity have been repeatedly reported in the G-layer [10,17,73] other works convincingly argue that they are located at the interface between S2-and G-layers rather than inside the G-layer and that the main constitutive polysaccharide of the G-layer matrix is rhamnogalacturonan I (RG1) pectins, a smaller fraction of the matrix being made of arabino-galactan proteins (AGP) [15,16,18].…”

Section: Chemical Composition Of Reaction Woodsmentioning

confidence: 99%

“…More recently, an alternative to this model was proposed [16][17][18]. This model is based on the same mechanism of entrapment as mentioned above, but involves a different chemical constituent.…”

Section: Entrapment Of Matrix Materials During Cellulose Aggregationmentioning

confidence: 99%

“…In particular, they occur in the phloem of some trees [49] and some herbaceous plants. A lot of studies on G-layers have been performed on flax [17,18,50]. This paper will often focus on mechanisms of stress generation in G-fibres, irrespective of the occurrence of late lignification.…”

Section: Different Forms Of Mechanically Active Woodsmentioning

confidence: 99%

“…Recently, this question has been studied through more and more interdisciplinary approaches, using tools of molecular biology [8][9][10], physics [11,12], physico-chemistry [13,14], biochemistry and immunocytochemistry [15,16], leading to a considerable number of studies and proposed mechanisms. Recent reviews on this issue have gathered knowledge about chemistry [17,18] and the macroscopic action of maturation stress [19] while proposing some hypothetical mechanisms. For an in-depth historical view of the issue of maturation stress, the reader may refer to Kubler [20].…”

Section: Wood Maturation Provides the Motor Powermentioning

confidence: 99%

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Critical review on the mechanisms of maturation stress generation in trees

Alméras

Clair

2016

J. R. Soc. Interface.

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Trees control their posture by generating asymmetric mechanical stress around the periphery of the trunk or branches. This stress is produced in wood during the maturation of the cell wall. When the need for reaction is high, it is accompanied by strong changes in cell organization and composition called reaction wood, namely compression wood in gymnosperms and tension wood in angiosperms. The process by which stress is generated in the cell wall during its formation is not yet known, and various hypothetical mechanisms have been proposed in the literature. Here we aim at discriminating between these models. First, we summarize current knowledge about reaction wood structure, state and behaviour relevant to the understanding of maturation stress generation. Then, the mechanisms proposed in the literature are listed and discussed in order to identify which can be rejected based on their inconsistency with current knowledge at the frontier between plant science and mechanical engineering.

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Section: Chemical Composition Of Reaction Woodsmentioning

confidence: 99%

Section: Entrapment Of Matrix Materials During Cellulose Aggregationmentioning

confidence: 99%

Section: Different Forms Of Mechanically Active Woodsmentioning

confidence: 99%

Section: Wood Maturation Provides the Motor Powermentioning

confidence: 99%

See 2 more Smart Citations

Critical review on the mechanisms of maturation stress generation in trees

Alméras

Clair

2016

J. R. Soc. Interface.

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“…Its structure is based on the entrapment of RG-I by laterally interacting cellulose microfibrils. Tertiary cell walls are formed in fibers of various plant species and in many ecophysiological situations [50]. Secondary and tertiary cell walls have different mechanical properties, such as the lignified secondary cell wall provides rigidity, while tertiary cell wall adds flexibility due to the tension of cellulose microfibrils.…”

Section: Cell Wall Thickeningmentioning

confidence: 99%

Development of Hemp Fibers: The Key Components of Hemp Plastic Composites

Tatyana¹,

Mikshina²,

Vadim³

et al. 2018

Natural and Artificial Fiber-Reinforced Composites as Renewable Sources

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Plant fibers in general and hemp fibers in particular have great prospects for their use in various innovative applications such as ecological, biodegradable, and renewable resources with unique properties. Such properties together with the increased strength due to high-cellulose content and specific morphological parameters are widely used to produce plant fiber-based plastic composites. The properties of plant fibers that may influence the properties of composites depend on crop processing, but the basis for them is provided during fiber development in planta. It is known that two types of bast fibers are developed in the hemp stem: primary fibers formed from procambium cells and secondary fibers that originate as a result of cambium activity. Both types of fibers may significantly vary in their yield and quality depending on the variety and growth conditions. Differences in the anatomical and morphological characteristics of the two types of hemp fibers, together with peculiarities in the composition and architecture of cell wall, influence the technical parameters of the raw material quality. Based on our study of both primary and secondary fiber development in hemp stem that was focused on the two key stages, intrusive elongation and deposition of thick cell wall layers, we suggest the set of parameters that can influence the quality of the mature fibers and trace their biological origin.

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