scholarly journals Cell wall associated immunity in plants

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Jiangxue Wan ◽  
Min He ◽  
Qingqing Hou ◽  
Lijuan Zou ◽  
Yihua Yang ◽  
...  

AbstractThe plant cell wall is the first physical and defensive barrier against pathogens. The plant cell wall usually undergoes dynamic remodeling as an immune response to prevent infection by pathogens. In this review, we summarize advances on relationship between cell wall and immunity in plants. In particular, we outline current progresses regarding the regulation of the cell wall components, including cellulose, hemicellulose, pectin and lignin, on plant disease resistance. We also discuss the impacts of cell wall-derived cellodextrin, oligogalacturonic acid and xyloglucan/xylan oligosaccharides as potent elicitors or signal molecules to trigger plant immune response. We further propose future studies on dissecting the molecular regulation of cell wall on plant immunity, which have potentials in practical application of crop breeding aiming at improvement of plant disease resistance.

2018 ◽  
Vol 93 (4) ◽  
pp. 614-636 ◽  
Author(s):  
Laura Bacete ◽  
Hugo Mélida ◽  
Eva Miedes ◽  
Antonio Molina

2017 ◽  
Vol 81 (11) ◽  
pp. 2071-2078 ◽  
Author(s):  
Takaomi Yaguchi ◽  
Tomohisa Kinami ◽  
Tetsuya Ishida ◽  
Takaomi Yasuhara ◽  
Kosaku Takahashi ◽  
...  

Nature ◽  
2003 ◽  
Vol 425 (6961) ◽  
pp. 973-977 ◽  
Author(s):  
Nicholas C. Collins ◽  
Hans Thordal-Christensen ◽  
Volker Lipka ◽  
Stephan Bau ◽  
Erich Kombrink ◽  
...  

2010 ◽  
Vol 108-111 ◽  
pp. 536-542
Author(s):  
Tie Gu Wang ◽  
Xue Bin Li ◽  
Tian You Yang ◽  
Wei Dong Wang

Ion beam bio-engineering was established by Chinese researcher in 1980s. Over thirty years past, there were delightful progress by low energy ion beam induced mutants and crop improvement. When ion beam implant the organism, charge exchanged between ions and organism surfaces. Meanwhile there were ion sputtering, ion penetration and surface damage of plant cell wall material. Owing to etching action of low energy beam to plant cell wall, ion beam mediated exogenous DNA transformation becomes possible. Representative applications and achievements in crop breeding were described.


2020 ◽  
Vol 33 (5) ◽  
pp. 767-780 ◽  
Author(s):  
Laura Bacete ◽  
Hugo Mélida ◽  
Gemma López ◽  
Patrick Dabos ◽  
Dominique Tremousaygue ◽  
...  

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.


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