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Root extracellular traps versus neutrophil extracellular traps in host defence, a case of functional convergence?

Abstract : The root cap releases cells that produce massive amounts of mucilage containing polysaccharides, proteoglycans, extracellular DNA (exDNA) and a variety of antimicrobial compounds. The released cells – known as border cells or border‐like cells – and mucilage secretions form networks that are defined as root extracellular traps (RETs). RETs are important players in root immunity. In animals, phagocytes are some of the most abundant white blood cells in circulation and are very important for immunity. These cells combat pathogens through multiple defence mechanisms, including the release of exDNA‐containing extracellular traps (ETs). Traps of neutrophil origin are abbreviated herein as NETs. Similar to phagocytes, plant root cap‐originating cells actively contribute to frontline defence against pathogens. RETs and NETs are thus components of the plant and animal immune systems, respectively, that exhibit similar compositional and functional properties. Herein, we describe and discuss the formation, molecular composition and functional similarities of these similar but different extracellular traps.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02143474
Contributor : Arnaud Lehner <>
Submitted on : Wednesday, May 29, 2019 - 2:22:18 PM
Last modification on : Friday, February 7, 2020 - 3:40:44 PM

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Azeddine Driouich, Catherine Smith, Marc Ropitaux, Marie Chambard, Isabelle Boulogne, et al.. Root extracellular traps versus neutrophil extracellular traps in host defence, a case of functional convergence?. Biological Reviews, Wiley, 2019, 94 (5), pp.1685-1700. ⟨10.1111/brv.12522⟩. ⟨hal-02143474⟩

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