Results 121 to 130 of about 1,306 (145)

Effects of brefeldin A on the development of the Casparian strip in pea epicotyls

Protoplasma, 1998
The Casparian strip, a structure that is present in roots, is also present in epicotyls of dark-grown pea seedlings. In a dark-grown epicotyl, the cells in each stage of the development of the Casparian strip have been suggested to be lined up basipetally in the region 3 to 37 mm below the bending point of the hook, in order of the developmental stage.
Ichirou Karahara, Hiroh Shibaoka, Shibaoka Hiroh   +2 more
exaly   +2 more sources

Observations on the Phi-Thickenings and Casparian Strips in Pelargonium Roots

American Journal of Botany, 1976
An ultrastructural examination of hypodermal cell walls failed to demonstrate the presence of casparian strips as has been reported in the literature. Rather, these cells have supportive phi‐thickenings which differ significantly from casparian strips. Adjacent phi‐thickenings are convex‐convex and stratified in transection, with an uneven surface like
David L. Haas, Zane B. Carothers, Robert R. Robbins   +2 more
openaire   +1 more source

Development of the Casparian strip is delayed by blue light in pea stems

Planta, 2011
To understand the regulatory mechanisms involved in tissue development by light, the kinetics of regulation of Casparian strip (CS) development in garden pea stems was studied. We found that short-term irradiation with white light delayed the development of the CS and used this delay to assess the quantitative effect of light on CS development.
Ichirou, Karahara, Eliko, Takaya, Shigetaka, Fujibayashi, Hiroshi, Inoue, James L, Weller, James B, Reid, Michizo, Sugai   +6 more
openaire   +2 more sources

A novel protein family mediates Casparian strip formation in the endodermis

Nature, 2011
Polarized epithelia are fundamental to multicellular life. In animal epithelia, conserved junctional complexes establish membrane diffusion barriers, cellular adherence and sealing of the extracellular space. Plant cellular barriers are of independent evolutionary origin.
Roppolo Daniele, De Rybel Bert, Tendon Valérie Dénervaud, Pfister Alexandre, Alassimone Julien, Vermeer Joop E M, Yamazaki Misako, Stierhof York-Dieter, Beeckman Tom, Geldner Niko   +9 more
openaire   +4 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   +3 more sources

Radial widening of the Casparian strip follows induced radial expansion of endodermal cells

Planta, 2001
The Casparian strip, the barrier to apoplastic transport that is located at the endodermis in roots and stems, is formed by individual endodermal cells and is constructed as a highly organized mesh within the primary wall. Since little is known about the mechanism of formation of the strip, we tried to obtain morphological evidence for the existence ...
Ichirou Karahara
exaly   +3 more sources

Casparian strips in needles of Pinus bungeana: isolation and chemical characterization

Physiologia Plantarum, 2003
By using cell wall degrading enzymes, Casparian strips were for the first time isolated from Pinus bungeana needle endodermis. They appeared as a fine network, similar to those isolated from roots. Fourier transform infrared spectroscopic analysis provided evidence that the Casparian strips were impregnated with lignin, suberin, cellulose and cell wall
Xiaoqin, Wu, Jinxing, Lin, Jinmao, Zhu, Yuxi, Hu, Klaus, Hartmann, Lukas, Schreiber   +5 more
openaire   +2 more sources

Occurrence of endodermis with a casparian strip in stem and leaf

The Botanical Review, 1997
It is well known that an endodermis with casparian strip always occurs in roots, but few people are aware that it also occurs in stems and leaves of some vascular plants. The rather sparse literature on endodermis in aerial organs was last included in a review in 1943.
openaire   +1 more source

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   +3 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   +5 more sources