Your browser doesn't support javascript.
loading
Osmotic Stress Activates Two Reactive Oxygen Species Pathways with Distinct Effects on Protein Nanodomains and Diffusion.
Martinière, Alexandre; Fiche, Jean Bernard; Smokvarska, Marija; Mari, Stéphane; Alcon, Carine; Dumont, Xavier; Hematy, Kian; Jaillais, Yvon; Nollmann, Marcelo; Maurel, Christophe.
Afiliación
  • Martinière A; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France alexandre.martiniere@cnrs.fr.
  • Fiche JB; Centre de Biochimie Structurale, Centre National de la Recherche Scientifique Unité Mixte de Recherche 5048, Institut National de la Santé et de la Recherche Médicale U1054, Université de Montpellier, 34090 Montpellier, France.
  • Smokvarska M; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France.
  • Mari S; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France.
  • Alcon C; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France.
  • Dumont X; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France.
  • Hematy K; Institut Jean-Pierre Bourgin, Institut National de la Recherche Agronomique, AgroParisTech, Centre National de la Recherche Scientifique, Université Paris-Saclay, 78026 Versailles, France.
  • Jaillais Y; Laboratoire Reproduction et Développement des Plantes, Université Lyon, École Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, F-69342 Lyon, France.
  • Nollmann M; Centre de Biochimie Structurale, Centre National de la Recherche Scientifique Unité Mixte de Recherche 5048, Institut National de la Santé et de la Recherche Médicale U1054, Université de Montpellier, 34090 Montpellier, France.
  • Maurel C; BPMP, Univ Montpellier, CNRS, INRA, Montpellier SupAgro, 34090 Montpellier, France.
Plant Physiol ; 179(4): 1581-1593, 2019 04.
Article en En | MEDLINE | ID: mdl-30718348
Physiological acclimation of plants to an everchanging environment is governed by complex combinatorial signaling networks that perceive and transduce various abiotic and biotic stimuli. Reactive oxygen species (ROS) serve as one of the second messengers in plant responses to hyperosmotic stress. The molecular bases of ROS production and the primary cellular processes that they target were investigated in the Arabidopsis (Arabidopsis thaliana) root. Combined pharmacological and genetic approaches showed that the RESPIRATORY BURST OXIDASE HOMOLOG (RBOH) pathway and an additional pathway involving apoplastic ascorbate and iron can account for ROS production upon hyperosmotic stimulation. The two pathways determine synergistically the rate of membrane internalization, within minutes after activation. Live superresolution microscopy revealed at single-molecule scale how ROS control specific diffusion and nano-organization of membrane cargo proteins. In particular, ROS generated by RBOHs initiated clustering of the PLASMA MEMBRANE INTRINSIC PROTEIN2;1 aquaporin and its removal from the plasma membrane. This process is contributed to by clathrin-mediated endocytosis, with a positive role of RBOH-dependent ROS, specifically under hyperosmotic stress.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Presión Osmótica / Especies Reactivas de Oxígeno / Arabidopsis / Proteínas de Arabidopsis Idioma: En Revista: Plant Physiol Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Presión Osmótica / Especies Reactivas de Oxígeno / Arabidopsis / Proteínas de Arabidopsis Idioma: En Revista: Plant Physiol Año: 2019 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos