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Showing 1 to 16 of 16 for “"Cellulose microfibrils"”.
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Cell-walls of growing plant cells
… is a three-dimensional interwoven network of cellulose microfibrils, cross-linked by xyloglucan and dispersed in a pectin matrix. It has been suggested that in the wall of growing plant cells, xyloglucan is bound to the rigid cellulose microfibrils by hydrogen bonds and holds the microfibrils …
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Isolation of Cellulose Nanofibres: Elucidation of a Novel Approach Utilizing Fungal Pretreatment
In plant cell wall, cellulose chains are organized into perfect stereoregular configuration called microfibrils through a regular network of inter and intramolecular hydrogen bonds. The cellulose microfibril along with hemicellulose chains that tether to the cellulose microfibrils and other …
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Structural colour from a helicoidal cellulose architecture in the secondary cell wall: Optical properties, cell wall composition, structure and morphology of components, and their assembly and interactions.
… structural coloration consists of assembling cellulose microfibrils into helicoidal structures. Examples of these architectures can be found in phylogenetically distant species and in different tissues of plants, such as in the endocarp of the fruit of $\textit{Margaritaria nobilis}$, an …
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Identification of novel components that connect cellulose synthases to the cytoskeleton
Cellulose is the most abundant biopolymer on earth and the main load-bearing structure in plant cell walls. Cellulose microfibrils are laid down in a tight parallel array, surrounding plant cells like a corset. Orientation of microfibrils determines the direction of growth by directing turgor …
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Structure and dynamics of plant cell walls and membrane peptides from solid-state NMR
… three types of insoluble polysaccharides: cellulose, hemicellulose and pectin. The spatial arrangement of these macromolecules has been largely elusive due to the lack of high-resolution and sitespecific characterization techniques. Here, we introduce SSNMR to investigate the interactions …
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ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΜΟΡΦΟΓΕΝΕΣΗΣ ΤΩΝ ΚΑΤΑΦΡΑΚΤΙΚΩΝ ΚΥΤΤΑΡΩΝ ΤΟΥ ΦΥΤΟΥ ZEA MAYS
… IS CO-ASSIGNMENT OF PERIPHERAL MICROTUBULES AND CELLULOSE MICROFIBRILS, 3) THE FORMATION OF THE STOMATAL PORE IS A RESULT OF GUARD CELLS PASS THROUGH AN INTERMEDIATE STAGE IN WHICH THEY ASSUME A KIDNEY LIKE SHAPE. IT SEEMS LIKELY THAT THE RADIAL MICROFIBRIL ARRANGEMENT IN THE PERIPHERAL WALLS IN …
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Multi-Functional nano-structures in Nature: from optics to mechanics
… and nanomechanics of helicoidally arranged cellulose microfibrils in the cell walls of Pollia condensata fruits shed light on the origin of the chirality assembling in the plant cell walls. By studying the structural colours developed in the close affinity of Pachyrhynchus sarcitis weevils …
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Bio-based composites that mimic the plant cell wall
… The plant cell wall is a composite of oriented cellulose microfibrils reinforcing a lignin/hemicellulose matrix. In principle, the plant cell wall composite is designed much like a synthetic fiber-reinforced polymer composite. Unlike synthetic composites, the plant cell wall has an excellent …
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Suspension, yielding, microstructure and applications of bacterial cellulose dispersion
… work examines the unique yielding of bacterial cellulose fiber networks using a new microrheology technique developed specifically for this purpose. The fiber gels exhibit a dynamic structural rearrangement response to applied stress that is shown to be advantageous in applications like particle …
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Nanocellulose: Preparation, Characterization, Supramolecular Modeling, and its Life Cycle Assessment
Nanocellulose is a nascent and promising material with many exceptional properties and a broad spectrum of potential applications; hence, it has drawn increasing research interests in the past decade. A new type of nanocellulose -- with mono- or bi-layer cellulose molecular sheet thickness -- was …
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Studies of Cellulosic Ethanol Production from Lignocellulose
… and allows for cleaner burning of gasoline. Lignocellulose materials are structurally composed of five types of polymeric sugars, glucan, galactan, mannan, arabinan, and xylan. NREL has developed a quantitative saccharification (QS) method for determining carbohydrate composition. We proposed a …
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Genetic mapping and molecular characterization of tbr1 mutant in Arabidopsis thaliana
… walls containing large amounts of highly ordered cellulose microfibrils. The tbr1 mutant of Arabidopsis lacks trichome birefringence and is deficient in secondary cell wall cellulose synthesis (Potikha and Delmer, 1995). The TBR gene was identified by recombinational mapping, candidate gene …
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Passive biomimetic actuators : the role of material architecture
… thereof) where stiff, almost inextensible cellulose microfibrils direct the otherwise isotropic swelling of a matrix. In addition, Nature provides examples of actuating systems based on lignified, low-swelling, cellular solids enclosing a high-swelling cellulosic phase. This is the case of …
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Identification of grapevine Pectate Lyase genes altering Berry Texture during ripening
… plants comprises approximately 30-35% cellulose, 10% hemicellulose, and 35-40% pectins. Cellulose microfibrils, which are composed of β-1,4-glucan chains, provide tensile strength and serve as the structural backbone of the cell wall. These microfibrils are cross-linked by …
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Effects of environmental factors on wood decay micromorphology of Pinus radiata and Fagus sylvatica, and its significance for in-ground wood preservative performance
… preservative treated wood in ground contact. 7. Cellulose microfibril orientation in both the S2 and S1 layers determined orientation and positioning of the great majority of decay types, including those previously thought to be essentially random, such as tunnelling bacteria. Contrary to the …