Intrusive growth of sclerenchyma fibers

Snegireva, A. V.; Ageeva, Marina; Amenitskii, S. I.; Chernova, Tatyana; Ebskamp, M.J.M.; Горшкова, Т. А.

doi:10.1134/s1021443710030052

Cited by 65 publications

(65 citation statements)

References 49 publications

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“…It is distinct from symplastic (also called coordinated) growth [20], when all involved cells increase their surface with the same rate, as it happens in the growth zones with most of the tissues [11]. Fibers are the classical example of cells performing intrusive elongation [11,17,21,22]. During such growth, a fiber has to split middle lamellae of the cells on the way and intrude between them.…”

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

“…By symplastic elongation, primary phloem fibers of hemp attain the length of 200 μm [8] (Figure 2B). The start of the primary fiber intrusive growth is marked by the formation of the so-called "knee": the flat tip of the symplastically growing cell is transformed into the tapered one to effectively intrude the surrounding tissues [8,19,22]. In hemp stem, such structures are observed at 1.8-2.0 mm from the very top (Figure 2A, B).…”

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

“…The structure of the fiber bundles is almost exclusively determined by fiber intrusive growth [8,12,22]. The longer the fibers in the course of elongation, the thicker the fiber bundles.…”

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

“…The large surface of the contacts between neighboring fibers formed during intrusive elongation permits them to stay together during the retting process [4,23,27]. These tight contacts may be further reinforced by the special type of the "glue" between cells-pectic compounds that are constituents of middle lamellae and primary cell walls [28], and may have peculiarities in composition in fibers performing intrusive growth [22]. In the course of intrusive growth that leads to the enormous increase of cell surface, pectins are actively deposited and modified.…”

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

See 3 more Smart Citations

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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Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

“…The structure of the fiber bundles is almost exclusively determined by fiber intrusive growth [8,12,22]. The longer the fibers in the course of elongation, the thicker the fiber bundles.…”

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

Section: Intrusive Elongation Of Primary and Secondary Fibersmentioning

confidence: 99%

See 2 more Smart Citations

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

View full text Add to dashboard Cite

show abstract

“…Indeed, its fibers can reach a length of several tens of millimeters [4]. Moreover, the cell wall thickness in fibers is impressively high, as it can reach more than 10 µm, while most cell walls are less than a few microns thick [5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Mechanical Properties of Flax Cell Walls during Plant Development: The Relation between Performance and Cell Wall Structure

Goudenhooft

Siniscalco

Arnould

et al. 2018

Fibers

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Abstract:The development of flax (Linum usitatissimum L.) fibers was studied to obtain better insight on the progression of their high mechanical performances during plant growth. Fibers at two steps of plant development were studied, namely the end of the fast growth period and at plant maturity, each time at three plant heights. The indentation modulus of the fiber cell wall was characterized by atomic force microscopy (AFM) using peak-force quantitative nano-mechanical property mapping (PF-QNM). Changes in the cell wall modulus with the cell wall thickening were highlighted. For growing plants, fibers from top and middle heights show a loose inner Gn layer with a lower indentation modulus than mature fibers, which exhibit thickened homogeneous cell walls made only of a G layer. The influence of these changes in the fiber cell wall on the mechanical performances of extracted elementary fibers was also emphasized by tensile tests. In addition, Raman spectra were recorded on samples from both growing and mature plants. The results suggest that, for the fiber cell wall, the cellulose contribution increases with fiber maturity, leading to a greater cell wall modulus of flax fibers.

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Cell wall composition and transcriptomics in stem tissues of stinging nettle (Urtica dioica L.): Spotlight on a neglected fibre crop

et al. 2019

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Stinging nettle ( Urtica dioica L.) produces silky cellulosic fibres, as well as bioactive molecules. To improve the knowledge on nettle and enhance its opportunities of exploitation, a draft transcriptome of the “clone 13” (a fibre clone) is here presented. The transcriptome of whole internodes sampled at the top and middle of the stem is then compared with the core and cortical tissues sampled at the bottom. Young internodes show an enrichment in genes involved in the biosynthesis of phytohormones (auxins and jasmonic acid) and secondary metabolites (flavonoids). The core of internodes collected at the bottom of the stem is enriched in genes partaking in different aspects of secondary cell wall formation (cellulose, hemicellulose, lignin biosynthesis), while the cortical tissues reveal the presence of a C starvation signal probably due to the UDP‐glucose demand necessary for the thickening phase of bast fibres. Cell wall analysis indicates a difference in rhamnogalacturonan structure/composition of mature bast fibres, as evidenced by the higher levels of galactose measured, as well as the occurrence of more water‐soluble pectins in elongating internodes. The targeted quantification of phenolics shows that the middle internode and the cortical tissues at the bottom have higher contents than top internodes. Ultrastructural analyses reveal the presence of a gelatinous layer in bast fibres with a lamellar structure. The data presented will be an important resource and reference for future molecular studies on a neglected fibre crop.

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Intrusive growth of sclerenchyma fibers

Cited by 65 publications

References 49 publications

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

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

Investigation of the Mechanical Properties of Flax Cell Walls during Plant Development: The Relation between Performance and Cell Wall Structure

Cell wall composition and transcriptomics in stem tissues of stinging nettle (Urtica dioica L.): Spotlight on a neglected fibre crop

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