Results 11 to 20 of about 137,618 (166)

Plant Biology: Journey to the Center of the Casparian Strip [PDF]

Current Biology, 2020
Diffusion barriers in roots play an important role in regulating the movement of compounds between the soilenvironment and the vasculature. A new study provides new mechanistic insights into how a pair of copper-binding proteins facilitate the formation of a lignified nanodomain within Casparian strips.
Stöckle, Dorothee, Vermeer, Joop E M
core   +10 more sources

The MYB36 transcription factor orchestrates Casparian strip formation [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2015
Significance Casparian strips play a critical role in sealing endodermal cells in the root to block uncontrolled extracellular uptake of nutrients and water. Building Casparian strips requires the construction of extracellular lignin structures that encircle cells within the cell wall and that are anchored to the plasma membranes of ...
Prashant Hosmani, Peng Wang, Niko Geldner   +2 more
exaly   +8 more sources

Are cuproproteins part of the multi-protein framework for making the Casparian strip? [PDF]

Plant Signaling and Behavior, 2020
Casparian strip (CS) is a lignified structure localized on the cell wall between adjacent root endodermal cells and functions as an apoplastic diffusion barrier in the root. The polarly localized, lignin-based CS is an excellent system for studying peptide signaling and position recognition.
Lei Li
exaly   +5 more sources

Functional and Evolutionary Analysis of the CASPARIAN STRIP MEMBRANE DOMAIN PROTEIN Family     [PDF]

Plant Physiology, 2014
AbstractCASPARIAN STRIP MEMBRANE DOMAIN PROTEINS (CASPs) are four-membrane-span proteins that mediate the deposition of Casparian strips in the endodermis by recruiting the lignin polymerization machinery. CASPs show high stability in their membrane domain, which presents all the hallmarks of a membrane scaffold. Here, we characterized the large family
Roppolo Daniele, Boeckmann Brigitte, Pfister Alexandre, Boutet Emmanuel, Rubio Maria C, Dénervaud-Tendon Valérie, Vermeer Joop E M, Gheyselinck Jacqueline, Xenarios Ioannis, Geldner Niko   +9 more
core   +8 more sources

Casparian strip diffusion barrier in Arabidopsis is made of a lignin polymer without suberin. [PDF]

Proc Natl Acad Sci U S A, 2012
Casparian strips are ring-like cell-wall modifications in the root endodermis of vascular plants. Their presence generates a paracellular barrier, analogous to animal tight junctions, that is thought to be crucial for selective nutrient uptake, exclusion of pathogens, and many other processes. Despite their importance, the chemical
Naseer S, Lee Y, Lapierre C, Franke R, Nawrath C, Geldner N.   +5 more
europepmc   +9 more sources

RGF signaling bridges root development and nonlethal thermal stress adaptation. [PDF]

New Phytol
Nonlethal high temperature inhibits root growth. Summary Roots adapt to growth‐restricting but nonlethal high temperatures. Although lethal heat shock and moderately elevated temperatures have been extensively studied, the effects of nonlethal thermal stress on root development remain unclear.
Hsiao YC, Lai JK, Shiue SY, Yamada M.
europepmc   +2 more sources

Polarly localized kinase SGN1 is required for Casparian strip integrity and positioning

Nature Plants, 2016
Casparian strips are precisely localized and aligned ring-like cell wall modifications in the root of all higher plants. They set up an extracellular diffusion barrier analogous to animal tight junctions, and are crucial for maintaining the homeostatic capacity of plant roots.
Julien Alassimone, Satoshi Fujita, Verónica G. Doblas, Maritza van Dop, Marie Barberon, Lothar Kalmbach, Joop E. M. Vermeer, Nelson Rojas-Murcia, Luca Santuari, Christian S. Hardtke, Niko Geldner   +10 more
openaire   +4 more sources

Transient cell-specific EXO70A1 activity in the CASP domain and Casparian strip localization

Nature Plants, 2017
In a striking case of evolutionary convergence, polarized cell layers with ring-like diffusion barriers have evolved in both plant and animal lineages independently. In plants, ring-like Casparian strips become localized by the CASPARIAN STRIP MEMBRANE DOMAIN PROTEINS (CASPs). The mechanism of this striking localization, however, has remained enigmatic.
Kalmbach, Lothar, Hématy, Kian, de Bellis, Damien, Barberon, Marie, Fujita, Satoshi, Ursache, Robertas, Daraspe, Jean, Geldner, Niko   +7 more
openaire   +6 more sources

The Casparian strip—one ring to bring cell biology to lignification?

Current Opinion in Biotechnology, 2019
Lignin research has long been motivated by the outstanding importance of wood for human societies. The annual, non-woody Arabidopsis thaliana, has nevertheless contributed greatly to our understanding of lignification, due to its unrivalled genetic resources.
Inês Catarina Ramos Barbosa, Nelson Rojas-Murcia, Niko Geldner   +2 more
openaire   +4 more sources

High-order mutants reveal an essential requirement for peroxidases but not laccases in Casparian strip lignification [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2020
Nelson Rojas-Murcia, Damien de Bellis, Niko Geldner   +2 more
exaly   +2 more sources