Infrared microspectroscopy: Sampling heterogeneity in plant cell wall composition and architecture

1997 ◽  
Vol 100 (3) ◽  
pp. 729-738 ◽  
Author(s):  
M. C. McCann ◽  
L. Chen ◽  
K. Roberts ◽  
E. K. Kemsley ◽  
C. Sene ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Composition ◽  
Infrared Microspectroscopy

Infrared microspectroscopy: Sampling heterogeneity in plant cell wall composition and architecture

1997 ◽  
Vol 100 (3) ◽  
pp. 729-738 ◽  
Author(s):  
M. C. McCann ◽  
L. Chen ◽  
K. Roberts ◽  
E. K. Kemsley ◽  
C. Sene ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Composition ◽  
Infrared Microspectroscopy

scholarly journals Plant Cell Wall Composition: Does Ploidy Matter?

2019 ◽  
Vol 179 (1) ◽  
pp. 16-17 ◽  
Author(s):  
Leonor C. Boavida
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Composition

scholarly journals Dependence of Plant Cell Wall Composition and Structure on Cellulose Synthase-Like Knock Out Mutant

2012 ◽  
Vol 102 (3) ◽  
pp. 590a-591a
Author(s):  
Andreia M. Smith-Moritz ◽  
Jeemeng Lao ◽  
Joshua L. Heazlewood ◽  
Pamela C. Ronald ◽  
Miguel E. Vega-Sanchez
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cellulose Synthase ◽  
Cell Wall Composition ◽  
Knock Out ◽  
Composition And Structure

scholarly journals Feeding the Walls: How Does Nutrient Availability Regulate Cell Wall Composition?

2018 ◽  
Vol 19 (9) ◽  
pp. 2691 ◽  
Author(s):  
Michael Ogden ◽  
Rainer Hoefgen ◽  
Ute Roessner ◽  
Staffan Persson ◽  
Ghazanfar Khan
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Nutrient Availability ◽  
Cell Walls ◽  
Plant Cell Wall ◽  
Nutrient Status ◽  
Cell Wall Composition ◽  
Nutrient Sensing ◽  
Tissue Type ◽  
Wall Components

Nutrients are critical for plants to grow and develop, and nutrient depletion severely affects crop yield. In order to optimize nutrient acquisition, plants adapt their growth and root architecture. Changes in growth are determined by modifications in the cell walls surrounding every plant cell. The plant cell wall, which is largely composed of complex polysaccharides, is essential for plants to attain their shape and to protect cells against the environment. Within the cell wall, cellulose strands form microfibrils that act as a framework for other wall components, including hemicelluloses, pectins, proteins, and, in some cases, callose, lignin, and suberin. Cell wall composition varies, depending on cell and tissue type. It is governed by synthesis, deposition and remodeling of wall components, and determines the physical and structural properties of the cell wall. How nutrient status affects cell wall synthesis and organization, and thus plant growth and morphology, remains poorly understood. In this review, we aim to summarize and synthesize research on the adaptation of root cell walls in response to nutrient availability and the potential role of cell walls in nutrient sensing.

scholarly journals Plant cell wall composition and enzymatic deconstruction

2018 ◽  
Vol 5 (1) ◽  
pp. 63-77 ◽  
Author(s):  
Thatiane Rodrigues Mota ◽  
Dyoni Matias de Oliveira ◽  
◽  
Rogério Marchiosi ◽  
Osvaldo Ferrarese-Filho ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Cell Wall Composition

scholarly journals Functional characterization of genes mediating cell wall metabolism and responses to plant cell wall integrity impairment

2019 ◽  
Author(s):  
Timo Engelsdorf ◽  
Lars Kjaer ◽  
Nora Gigli-Bisceglia ◽  
Lauri Vaahtera ◽  
Stefan Bauer ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Functional Characterization ◽  
Cell Wall Composition ◽  
Cell Wall Integrity ◽  
Cell Wall Metabolism ◽  
Altered Expression ◽  
Plant Environment ◽  
The Impact

AbstractPlant cell walls participate in all plant-environment interactions. Maintaining cell wall integrity (CWI) during these interactions is essential. This realization led to increased interest in CWI and resulted in knowledge regarding early perception and signalling mechanisms active during CWI maintenance. By contrast, knowledge regarding processes mediating changes in cell wall metabolism upon CWI impairment is very limited. To identify genes involved and to investigate their contributions to the processes we selected 23 genes with altered expression in response to CWI impairment and characterized the impact of T-DNA insertions in these genes on cell wall composition using Fourier-Transform Infrared Spectroscopy (FTIR) in Arabidopsis thaliana seedlings. Insertions in 14 genes led to cell wall phenotypes detectable by FTIR. A detailed analysis of four genes found that their altered expression upon CWI impairment is dependent on THE1 activity, a key component of CWI maintenance. Phenotypic characterizations of insertion lines suggest that the four genes are required for particular aspects of CWI maintenance, cell wall composition or resistance to Plectosphaerella cucumerina infection in adult plants. Taken together, the results implicate the genes in responses to CWI impairment, cell wall metabolism and/or pathogen defence, thus identifying new molecular components and processes relevant for CWI maintenance.

scholarly journals Arabidopsis Response Regulator 6 (ARR6) Modulates Plant Cell-Wall Composition and Disease Resistance

2020 ◽  
Vol 33 (5) ◽  
pp. 767-780 ◽  
Author(s):  
Laura Bacete ◽  
Hugo Mélida ◽  
Gemma López ◽  
Patrick Dabos ◽  
Dominique Tremousaygue ◽  
...  
Keyword(s):  
Cell Wall ◽  
Disease Resistance ◽  
Immune Responses ◽  
Plant Cell ◽  
Plant Cell Wall ◽  
Response Regulator ◽  
Cell Wall Composition ◽  
Wild Type ◽  
Molecular Patterns

The cytokinin signaling pathway, which is mediated by Arabidopsis response regulator (ARR) proteins, has been involved in the modulation of some disease-resistance responses. Here, we describe novel functions of ARR6 in the control of plant disease-resistance and cell-wall composition. Plants impaired in ARR6 function (arr6) were more resistant and susceptible, respectively, to the necrotrophic fungus Plectosphaerella cucumerina and to the vascular bacterium Ralstonia solanacearum, whereas Arabidopsis plants that overexpress ARR6 showed the opposite phenotypes, which further support a role of ARR6 in the modulation of disease-resistance responses against these pathogens. Transcriptomics and metabolomics analyses revealed that, in arr6 plants, canonical disease-resistance pathways, like those activated by defensive phytohormones, were not altered, whereas immune responses triggered by microbe-associated molecular patterns were slightly enhanced. Cell-wall composition of arr6 plants was found to be severely altered compared with that of wild-type plants. Remarkably, pectin-enriched cell-wall fractions extracted from arr6 walls triggered more intense immune responses than those activated by similar wall fractions from wild-type plants, suggesting that arr6 pectin fraction is enriched in wall-related damage-associated molecular patterns, which trigger immune responses. This work supports a novel function of ARR6 in the control of cell-wall composition and disease resistance and reinforces the role of the plant cell wall in the modulation of specific immune responses.

Sign in / Sign up

Export Citation Format

Share Document