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  • Bacete, LauraUniv Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain.;Univ Politecn Madrid, Dept Biotecnol Biol Vegetal, Escuela Tecn Super Ingn Agron Alimentaria & Biosi, Madrid 28040, Spain. (author)

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

  • Article/chapterEnglish2020

Publisher, publication year, extent ...

  • Scientific Societies,2020
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-273902
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-273902URI
  • https://doi.org/10.1094/MPMI-12-19-0341-RDOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20200605
  • 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 an-6 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.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Melida, HugoUniv Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain.(Swepub:kth)u140zccu (author)
  • Lopez, GemmaUniv Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain. (author)
  • Dabos, PatrickUniv Toulouse, INRA, UPS, CNRS,LIPM, Castanet Tolosan, France. (author)
  • Tremousaygue, DominiqueUniv Toulouse, INRA, UPS, CNRS,LIPM, Castanet Tolosan, France. (author)
  • Denance, NicolasUniv Toulouse, INRA, UPS, CNRS,LIPM, Castanet Tolosan, France.;Univ Paul Sabatier, Lab Rech Sci Vegetales, CNRS, UMR 5546, Chemin Borde Rouge, F-31326 Castanet Tolosan, France. (author)
  • Miedes, EvaUniv Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain.;Univ Politecn Madrid, Dept Biotecnol Biol Vegetal, Escuela Tecn Super Ingn Agron Alimentaria & Biosi, Madrid 28040, Spain. (author)
  • Bulone, VincentKTH,Glykovetenskap,AlbaNova Univ Ctr, Sch Engn Sci Chem Biotechnol & Hlth, Royal IUniv Adelaide, RC Ctr Excellence Plant Cell Walls, Waite Campus, Urrbrae, SA 5064, Australia.;Univ Adelaide, Sch Agr Food & Wine, Waite Campus, Urrbrae, SA 5064, Australia.(Swepub:kth)u13o1auq (author)
  • Goffner, DeborahUniv Paul Sabatier, Lab Rech Sci Vegetales, CNRS, UMR 5546, Chemin Borde Rouge, F-31326 Castanet Tolosan, France. (author)
  • Molina, AntonioUniv Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain.;Univ Politecn Madrid, Dept Biotecnol Biol Vegetal, Escuela Tecn Super Ingn Agron Alimentaria & Biosi, Madrid 28040, Spain. (author)
  • Univ Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain.;Univ Politecn Madrid, Dept Biotecnol Biol Vegetal, Escuela Tecn Super Ingn Agron Alimentaria & Biosi, Madrid 28040, Spain.Univ Politecn Madrid UPM, Ctr Biotecnol & Genom Plantas, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA, Campus Montegancedo UPM, Pozuelo De Alarcon 28223, Madrid, Spain. (creator_code:org_t)

Related titles

  • In:Molecular Plant-Microbe Interactions: Scientific Societies33:5, s. 767-7800894-02821943-7706

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