Functions of Xyloglucan in Plant Cells

Hayashi, Takahisa; Kaida, Rumi

doi:10.1093/mp/ssq063

Cited by 182 publications

(114 citation statements)

References 47 publications

Supporting

Mentioning

111

Contrasting

Unclassified

Order By: Relevance

“…A lack of detectable xyloglucan in the xxt1/xxt2 double mutant in Arabidopsis caused a significant reduction in the stiffness and strength parameters of the mutants (Cavalier et al 2008). The xyloglucan acts as a tether in the extracellular matrix and plays a key role in the loosening and tightening of cellulose microfibrils (Hayashi and Kaida 2011). The SNP (PGWD1-0511) represents a synonymous substitution (TCA-TCG) coding for a serine.…”

Section: Resultsmentioning

confidence: 99%

Association Genetics of Wood Physical Traits in the Conifer White Spruce and Relationships With Gene Expression

et al. 2011

View full text Add to dashboard Cite

Marker-assisted selection holds promise for highly influencing tree breeding, especially for wood traits, by considerably reducing breeding cycles and increasing selection accuracy. In this study, we used a candidate gene approach to test for associations between 944 single-nucleotide polymorphism markers from 549 candidate genes and 25 wood quality traits in white spruce. A mixed-linear model approach, including a weak but nonsignificant population structure, was implemented for each marker-trait combination. Relatedness among individuals was controlled using a kinship matrix estimated either from the known half-sib structure or from the markers. Both additive and dominance effect models were tested. Between 8 and 21 single-nucleotide polymorphisms (SNPs) were found to be significantly associated (P # 0.01) with each of earlywood, latewood, or total wood traits. After controlling for multiple testing (Q # 0.10), 13 SNPs were still significant across as many genes belonging to different families, each accounting for between 3 and 5% of the phenotypic variance in 10 wood characters. Transcript accumulation was determined for genes containing SNPs associated with these traits. Significantly different transcript levels (P # 0.05) were found among the SNP genotypes of a 1-aminocyclopropane-1-carboxylate oxidase, a b-tonoplast intrinsic protein, and a long-chain acyl-CoA synthetase 9. These results should contribute toward the development of efficient marker-assisted selection in an economically important tree species.

show abstract

Section: Resultsmentioning

confidence: 99%

Association Genetics of Wood Physical Traits in the Conifer White Spruce and Relationships With Gene Expression

et al. 2011

View full text Add to dashboard Cite

show abstract

“…1E) showed that cells approaching the root surface become more elongated, and we thought that this could be effected by some nonpectin components. XyG is one of the main hemicelluloses implicated in cell wall extensibility and cell elongation (Scheller and Ulvskov, 2010;Hayashi and Kaida, 2011;Park and Cosgrove, 2015), and we localized XyG in pea roots using three mAbs recognizing distinct XyG structural features: LM24, Figure 7. Immunolocalization of XAG in the pea root apex.…”

Section: Xyg and Extensin Epitopes Display Polarized Distribution Witmentioning

confidence: 99%

Pea Border Cell Maturation and Release Involve Complex Cell Wall Structural Dynamics

et al. 2017

View full text Add to dashboard Cite

The adhesion of plant cells is vital for support and protection of the plant body and is maintained by a variety of molecular associations between cell wall components. In some specialized cases, though, plant cells are programmed to detach, and root cap-derived border cells are examples of this. Border cells (in some species known as border-like cells) provide an expendable barrier between roots and the environment. Their maturation and release is an important but poorly characterized cell separation event. To gain a deeper insight into the complex cellular dynamics underlying this process, we undertook a systematic, detailed analysis of pea (Pisum sativum) root tip cell walls. Our study included immunocarbohydrate microarray profiling, monosaccharide composition determination, Fourier-transformed infrared microspectroscopy, quantitative reverse transcription-PCR of cell wall biosynthetic genes, analysis of hydrolytic activities, transmission electron microscopy, and immunolocalization of cell wall components. Using this integrated glycobiology approach, we identified multiple novel modes of cell wall structural and compositional rearrangement during root cap growth and the release of border cells. Our findings provide a new level of detail about border cell maturation and enable us to develop a model of the separation process. We propose that loss of adhesion by the dissolution of homogalacturonan in the middle lamellae is augmented by an active biophysical process of cell curvature driven by the polarized distribution of xyloglucan and extensin epitopes.

show abstract

“…This high relative amount of branched glucose and the presence of T-Fucp, T-Galp, T-Xylp, (1 → 2)-Galp, and (1 → 2)-Xylp residues allows to infer the presence of xyloglucans (Fry, 1988;Hayashi & Kaida, 2011;Hoffman et al, 2005).…”

Section: Glycosidic Linkage Analysismentioning

confidence: 99%

In vitro macrophage nitric oxide production by Pterospartum tridentatum (L.) Willk. inflorescence polysaccharides

Martins

Simões

Ferreira

et al. 2017

Carbohydrate Polymers

View full text Add to dashboard Cite

a b s t r a c tPterospartum tridentatum (L.) Willk. decoctions of dried inflorescences are used in Portugal due to their claimed beneficial properties for various health disorders. To disclose the potential contribution of its polysaccharides to health benefits, in this work, hot water extracts from P. tridentatum inflorescences were prepared and fractionated by ethanol precipitation and anion exchange chromatography. The fraction rich in acetylated galactomannans evidenced an increase in nitric oxide (NO) production by macrophages. This activity decreased 60-75% after saponification, confirming that acetylation is an important structural feature for this biological property. In addition, the treatment of pectic polysaccharides with endopolygalacturonase showed that type-I and type-II arabinogalactans, as well as low molecular weight galacturonans and xyloglucans, may also contribute to macrophage NO production. Thus, the polysaccharides present in P. tridentatum dried inflorescences may contribute to the health beneficial properties frequently attributed to the decoctions of this plant.

show abstract

Functions of Xyloglucan in Plant Cells

Cited by 182 publications

References 47 publications

Association Genetics of Wood Physical Traits in the Conifer White Spruce and Relationships With Gene Expression

Association Genetics of Wood Physical Traits in the Conifer White Spruce and Relationships With Gene Expression

Pea Border Cell Maturation and Release Involve Complex Cell Wall Structural Dynamics

In vitro macrophage nitric oxide production by Pterospartum tridentatum (L.) Willk. inflorescence polysaccharides

Contact Info

Product

Resources

About