Two chemically distinct root lignin barriers control solute and water balance
| Autor: | Priya Ramakrishna, David E. Salt, Catherine Lapierre, Guilhem Reyt, Ashley Love, Kris Morreel, Monica Calvo-Polanco, Yann Boursiac, Paulina Flis, Satoshi Fujita, Isai Salas-González, David Tiemessen, Niko Geldner, Wout Boerjan, Gabriel Castrillo, Michael W. George |
|---|---|
| Přispěvatelé: | Future Food Beacon of Excellence & School of Biosciences, Curriculum in Bioinformatics and Computational Biology, University of North Carolina [Chapel Hill] (UNC), University of North Carolina System (UNC)-University of North Carolina System (UNC), Department of Plant Molecular Biology, Biophore, Université de Lausanne (UNIL), School of Chemistry [Nottingham, UK] (School of Chemistry), University of Nottingham, UK (UON), Institut Jean-Pierre Bourgin (IJPB), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Plant Systems Biology, VIB, and Department of Plant Biotechnology and Bioinformatics, Universiteit Gent = Ghent University [Belgium] (UGENT), Biochimie et Physiologie Moléculaire des Plantes (BPMP), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine [SDV]Life Sciences [q-bio] Arabidopsis General Physics and Astronomy STRIP DIFFUSION BARRIER 01 natural sciences Lignin Plant Roots Diffusion chemistry.chemical_compound CASPARIAN STRIP RNA-Seq DEPOSITION Multidisciplinary biology Phenylpropanoid PARTIAL RESISTANCE Phenylpropionates Chemistry Cell wall Plant physiology food and beverages ARABIDOPSIS Plants Genetically Modified FAMILY Casparian strip Science Genetics and Molecular Biology macromolecular substances complex mixtures General Biochemistry Genetics and Molecular Biology Article 03 medical and health sciences Xylem LIGNIFICATION [SDV.BV]Life Sciences [q-bio]/Vegetal Biology BIOSYNTHESIS TRANSCRIPTION FACTOR MYB15 Arabidopsis Proteins Cell Membrane fungi technology industry and agriculture Biology and Life Sciences Water General Chemistry biology.organism_classification Plant cell MEDICAGO-TRUNCATULA 030104 developmental biology Microscopy Fluorescence Plant signalling General Biochemistry Mutation Biophysics Endodermis Secondary metabolism 010606 plant biology & botany Transcription Factors |
| Zdroj: | Nature Communications, Vol 12, Iss 1, Pp 1-15 (2021) Nature Communications Nature Communications, Nature Publishing Group, 2021, 12, pp.2320. ⟨10.1038/s41467-021-22550-0⟩ NATURE COMMUNICATIONS Nature communications, vol. 12, no. 1, pp. 2320 |
| ISSN: | 2041-1723 |
| Popis: | Lignin is a complex polymer deposited in the cell wall of specialised plant cells, where it provides essential cellular functions. Plants coordinate timing, location, abundance and composition of lignin deposition in response to endogenous and exogenous cues. In roots, a fine band of lignin, the Casparian strip encircles endodermal cells. This forms an extracellular barrier to solutes and water and plays a critical role in maintaining nutrient homeostasis. A signalling pathway senses the integrity of this diffusion barrier and can induce over-lignification to compensate for barrier defects. Here, we report that activation of this endodermal sensing mechanism triggers a transcriptional reprogramming strongly inducing the phenylpropanoid pathway and immune signaling. This leads to deposition of compensatory lignin that is chemically distinct from Casparian strip lignin. We also report that a complete loss of endodermal lignification drastically impacts mineral nutrients homeostasis and plant growth. Defects in the Casparian strip, a fine band of lignin that seals root endodermal cells and plays roles in nutrient homeostasis, activate a signaling pathway leading to over-lignification. Here, the authors show that this process leads to the deposition of compensatory lignin that is chemically distinct from Casparian strip lignin. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink