Results 161 to 170 of about 373,661 (189)

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.
Lothar Kalmbach, Kian Hématy, Damien De Bellis, Marie Barberon, S. Fujita, R. Ursache, J. Daraspe, N. Geldner   +7 more
semanticscholar   +5 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, S. Fujita, Verónica G. Doblas, Maritza van Dop, Marie Barberon, Lothar Kalmbach, Joop E. M. Vermeer, Nelson Rojas-Murcia, L. Santuari, C. Hardtke, N. Geldner   +10 more
semanticscholar   +3 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

ON THE FUNCTION OF THE CASPARIAN STRIPS IN ROOTS

Acta Botanica Neerlandica, 1974
SUMMARY The dyes safranin and basic fuchsine as well as ferric salts enter the stele when applied as dilute solutions to intact root parts where Casparian strips are well developed. As the entrance is not hampered when the protoplasm has been killed or its activity and permeability diminished by low temperature the most likely way of entrance is ...
B. Huisinga, A. M. W. Knijff
openaire   +1 more source

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   +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

Development of the Casparian strip in primary roots of maize under salt stress

Planta, 2004
The Casparian strip in the endodermis of vascular plant roots appears to play an important role in preventing the influx of salts into the stele through the apoplast under salt stress. The effects of salinity on the development and morphology of the Casparian strip in primary roots of maize ( Zea mays L.) were studied.
Ichirou, Karahara, Atsuo, Ikeda, Takanori, Kondo, Yuzo, Uetake   +3 more
openaire   +2 more sources

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

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 ...
M, Yokoyama, I, Karahara
openaire   +2 more sources

Cloning and In silico analysis of Casparian strip membrane domain protein (CASP) from rice

Madras Agricultural Journal, 2019
Casparian strip (CS) seals the adjacent endodermal cells to form a tight junction and thereby regulate the movement of water and salts across the endodermis.
Mandlik Rushil, S. Varanavasiappan, K. KumarK, E. Kokiladevi, D. Sudhakar, L. Arul   +5 more
semanticscholar   +1 more source