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Showing 1 to 17 of 17 for “"xyloglucan"”.
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Adsorption of Xyloglucan onto Cellulose and Cellulase onto Self-assembled Monolayers
Adsorption of xyloglucan (XG) onto thin desulfated nanocrystalline cellulose (DNC) films was studied by surface plasmon resonance spectroscopy (SPR), quartz crystal microbalance with dissipation monitoring (QCM-D), and atomic force microscopy (AFM) measurements. These studies were compared to …
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Kiwifruit softening: A cell wall study
… ACS, the main differences observed were in the xyloglucan domain. Compared to MPM, ACS appeared to have a higher xyloglucan content in the tightly bound 4 M KOH fraction and the cell wall residue, a result supported by a higher distribution of monoclonal antibody LM15 epitopes (related to …
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Adsorption of Biomacromolecules onto Polysaccharide Surfaces
… (SPR) and atomic force microscopy (AFM). Xyloglucan adsorption isotherms were obtained to probe how cellulose-hemicellulose interactions were affected by the type of cellulose substrate and molar mass of xyloglucan. Xyloglucan as small as a heptasaccharide still adsorbed irreversibly onto …
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Cell-walls of growing plant cells
… 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 together by forming molecular tethers, …
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Renewable Natural Polymer Thin Films and Their Interactions with Biomacromolecules
… isotherms from QCM-D and SPR indicated that xyloglucan possessed stronger affinity for KL and OL films than MWL films. Data from QCM-D and SPR revealed that xyloglucan formed less hydrated layers on lignin surfaces compared to RC surfaces, and the adsorbed xyloglucan layers on different …
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Characterization of Cellulose and Chitin Thin Films and Their Interactions with Bio-based Polymers
… in understanding the observed differences of xyloglucan (XG) adsorption onto their surfaces. Xyloglucan adsorption onto RC, SNC, and DNC was studied by QCM-D and SPR. The amount of adsorbed XG increased in the order RC < SNC < DNC. XG adsorption onto RC films was independent of d, whereas XG …
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Evolutionary and functional study of plant cell wall polysaccharide glucomannan
… suggesting convergent evolution from different xyloglucan galactosyltransferases. Chapter4 addressed the question, “What is the role of CSLD (cellulose synthase-like D) glucan?" Although we could not clarify a role for CSLD glucans, we found that constitutive immune response occurs in the …
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Influence of the cell wall on the organisation and dynamics of intracellular components in Arabidopsis Thaliana
… by mutations leading to a lack of detectable xyloglucan. Some of the plasma membrane proteins examined had altered mobility in cells with a disturbed cell wall, but others did not, suggesting different components in the cell wall affect specific plasma membrane associations. Together these …
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Application of Machine Learning Algorithms for Elucidation of Biological Networks from Time Series Gene Expression Data
… with structural cell changes orchestrated by xyloglucan, are shown to be cardinal players in heliotropism's intricate dance.</p> <p>Chapter 3 embarks on a journey into the realm of phototropism and its profound influence on stem growth. Our methodical gene expression analysis across diverse …
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Molecular and biochemical characterization of steroid sulfotransferases from Brassica napus and Arabidopsis thaliana
… along with alcohol dehydrogenase ( ADH ) and xyloglucan endotransglycosylases ( XET ) genes are also inducible by ethanol. BNST4 displays the fastest response among BNST genes, with peak mRNA levels within one hour after treatment. Plants respond to low oxygen stress by a switch to ethanolic …
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On the Recalcitrant Nature of Sphagnum's Cell Wall
… hemicelluloses such as galactomannan and xyloglucan, and pectins. While moss specific modifications were apparent, such as the absence of canonical xylan conformations typical of vascular plants and the presence of an unidentified β-glucan like polymer, differences in the mobility of …
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Cell wall involvement in desiccation tolerance in the resurrection plant Craterostigma wilmsii
… increase of the hemicellulosic polysaccharide xyloglucan and of the unesterified pectins during drying with levels declining again during rehydration. In contrast no increase was observed in others polysaccharides such as ß (1-4) galactans and methylesterified pectins. Biochemical analysis …
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Sequence-structure-function relationships of glycosyltransferases in families GT43, GT47, and GT64
… nevertheless successful in identifying a novel xyloglucan-specific enzyme from Coffea canephora on the basis of its protein sequence. As a whole, the results in this thesis provide insight into the relationship between amino acid sequence, atomic structure, and function in glycosyltransferases. …
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Effects of co-inoculation of Delftia acidovorans RAY209 on the growth of Bradyrhizobium diazoefficiens USDA110 inoculated Glycine max
… increased expression of genes associated with xyloglucan catabolism and subsequent cell wall expansion, which could initiate plant cell growth and active proline metabolism under salt stress conditions. These findings suggest that RAY209 may play a crucial role in plant growth-promotion (PGP), …
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Identification of grapevine Pectate Lyase genes altering Berry Texture during ripening
… are cross-linked by hemicelluloses, with xyloglucan being the predominant of these polysaccharides in dicots. Pectins form a heterogeneous matrix embedding the cellulose fibrils, and they are classified into three major groups: homogalacturonan (HG), a linear polymer of α-(1,4)-linked …
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Pectic methyl and non-methyl esters and the environmental implications of methanol emissions from plants
… linkages are formed by glycosidic bonds between xyloglucan and acidic pectins. However, the presence of non-methyl esters has been confirmed and these linkages are candidates for the role of intercellular adhesion. The correlation between the quantity of these non-methyl ester groups and the …
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Identification and molecular characterisation of elicitor-priming for resistance in tomato against <i>Botrytis cinerea</i>
… cellulose synthesis and PGs, PMEs and xyloglucan repression; 3) a fine-tuned potentiation of JA/JA-Ile synthesis and JA/ET/SA/ABA transcriptional regulation; 4) an induction of the lipid/fatty acid metabolism and phenylpropanoid pathway; and 5) a strong repression of <i>B. cinerea …