Cell Wall Metabolism in Response to Abiotic Stress

By H. Gall, F. Philippe, Jean-Marc Domon, F. Gillet, J. Pelloux, C. Rayon. Plants, 2015

1,108 citations recorded by the source corpus.

This review focuses on the responses of the plant cell wall to several abiotic stresses including drought, flooding, heat, cold, salt, heavy metals, light, and air pollutants. The effects of stress on cell wall metabolism are discussed at the physiological (morphogenic), transcriptomic, proteomic and biochemical levels. The analysis of a large set of data shows that the plant response is highly complex. The overall effects of most abiotic stress are often dependent on the plant species, the genotype, the age of the plant, the timing of the stress application, and the intensity of this stress. This shows the difficulty of identifying a common pattern of stress response in cell wall architecture that could enable adaptation and/or resistance to abiotic stress. However, in most cases, two main mechanisms can be highlighted: (i) an increased level in xyloglucan endotransglucosylase/hydrolase (XTH) and expansin proteins, associated with an increase in the degree of rhamnogalacturonan I branching that maintains cell wall plasticity and (ii) an increased cell wall thickening by reinforcement of the secondary wall with hemicellulose and lignin deposition. Taken together, these results show the need to undertake large-scale analyses, using multidisciplinary approaches, to unravel the consequences of stress on the cell wall. This will help identify the key components that could be targeted to improve biomass production under stress conditions.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/65e223ba903834f4a2b20dbfa3e9bcbe62fc21d3

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In Plant Science

1. G. Kaur
2. B. Asthir
3. Shahid Ali
4. D. Naylor
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7. N. Khan
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Citations in the corpus

• Cadmium stress in plants: A critical review of the effects, mechanisms, and tolerance strategies (2020, background): “Cadmium also substitutes for Mg2þ in chlorophyll (Gill et al., 2011) and replaces Ca2þ in Ca/Mn clusters in the PSII complex (Le Gall et al., 2015; Saini & Dhania, 2020).”
• Drought Stress and Root-Associated Bacterial Communities (2018, background): “The phenomenon is now repeatedly confirmed by numerous authors (Gassmann et al., 2016), and calls for greater collaboration among plant biologists studying different stresses, in order to address the complexity of plant stress responses under natural conditions.”
• Impact of drought stress on growth and quality of miscanthus for biofuel production (2017, background): “An increase in the relative proportion of hemicelluloses might enable cell walls of drought-treated plants to uphold their structural rigidity without compromising plasticity (Le Gall et al., 2015; Tenhaken, 2015).”
• Molecular responses to drought stress in plants (2017, positive): “Sugars translocated in the xylem of drought stressed plants likely exert an important influence on stomatal sensitivity to ABA (Le Gall et al. 2015).”
• Insights into the Physiological and Biochemical Impacts of Salt Stress on Plant Growth and Development (2020, background): “Cell membrane permeability sig ific ntly increases with the increase in salinity [34,35].”