Ion Channels in the Plasma Membrane of Plant Cells

1992 ◽  
pp. 225-236
Author(s):  
B. R. Terry ◽  
S. D. Tyerman ◽  
G. P. Findlay
Keyword(s):  
Plasma Membrane ◽  
Ion Channels ◽  
Plant Cells

Enrichment of vitronectin- and fibronectin-like proteins in NaCI-adapted plant cells and evidence for their involvement in plasma membrane-cell wall adhesion

1993 ◽  
Vol 3 (5) ◽  
pp. 637-646 ◽  
Author(s):  
Jian-Kang Zhu ◽  
Jun Shi ◽  
Utpal Singh ◽  
Sarah E. Wyatt ◽  
Ray A. Bressan ◽  
...  
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Plant Cells ◽  
Membrane Cell

scholarly journals Fig mosaic emaravirus p4 protein is involved in cell-to-cell movement

2013 ◽  
Vol 94 (3) ◽  
pp. 682-686 ◽  
Author(s):  
Kazuya Ishikawa ◽  
Kensaku Maejima ◽  
Ken Komatsu ◽  
Osamu Netsu ◽  
Takuya Keima ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Laser Scanning ◽  
Movement Protein ◽  
Rna Virus ◽  
Cell Movement ◽  
Plant Cells ◽  
Laser Scanning Microscopy ◽  
Confocal Laser ◽  
Series Of Experiments ◽  
Fig Mosaic Virus

Fig mosaic virus (FMV), a member of the newly formed genus Emaravirus, is a segmented negative-strand RNA virus. Each of the six genomic FMV segments contains a single ORF: that of RNA4 encodes the protein p4. FMV-p4 is presumed to be the movement protein (MP) of the virus; however, direct experimental evidence for this is lacking. We assessed the intercellular distribution of FMV-p4 in plant cells by confocal laser scanning microscopy and we found that FMV-p4 was localized to plasmodesmata and to the plasma membrane accompanied by tubule-like structures. A series of experiments designed to examine the movement functions revealed that FMV-p4 has the capacity to complement viral cell-to-cell movement, prompt GFP diffusion between cells, and spread by itself to neighbouring cells. Altogether, our findings demonstrated that FMV-p4 shares several properties with other viral MPs and plays an important role in cell-to-cell movement.

Pharmacology and Regulation of the Ion Channels of the Brown Adipocyte Plasma Membrane

1994 ◽  
pp. 103-108
Author(s):  
A. Koivisto ◽  
T. Ringer ◽  
U. Ruß ◽  
J. Nedergaard ◽  
D. Siemen
Keyword(s):  
Plasma Membrane ◽  
Ion Channels ◽  
Brown Adipocyte

scholarly journals Functional clustering and coupling of ion channels in cellular mechanosensing is independent on lipid raft integrity in plasma membrane

2020 ◽  
Vol 1867 (10) ◽  
pp. 118764
Author(s):  
Vladislav I. Chubinskiy-Nadezhdin ◽  
Valeria Y. Vasileva ◽  
Yuri A. Negulyaev ◽  
Elena A. Morachevskaya
Keyword(s):  
Plasma Membrane ◽  
Ion Channels ◽  
Lipid Raft ◽  
Functional Clustering ◽  
Cellular Mechanosensing

Mechanismus der cis- und trans-Stimulierung der Anionenfluxe durch die Plasmamembran der Pflanzenzelle / Mechanism of Cis- and Trans-Stimulation of Anion Fluxes across the Plasma Membrane of Plant Cells

1970 ◽  
Vol 25 (6) ◽  
pp. 631-636 ◽  
Author(s):  
Josef Weigl
Keyword(s):  
Plasma Membrane ◽  
Permeability Coefficient ◽  
Electrical Potential ◽  
Plant Cells ◽  
Monovalent Cations ◽  
Trans Effect ◽  
Anion Permeation ◽  
Ion Efflux ◽  
Cis And Trans ◽  
Stimulation Of

Trans-stimulation by salts of the passive efflux of Cl⊖ across the plasma membrane of plant cells was established previously. In this paper the trans-effect of salts is compared with the effect of nystatin on ion efflux. It is further shown that the influx of anions is also stimulated by external salts. Influx of Cl⊖ was stimulated by K2SO4 (>~1 mM), influx of SO42⊖ was stimulated by KCl (>~lmM). This suggests that with increasing external salt concentration not only the electrical potential across the plasmalemma is lowered (due to preferential permeability to monovalent cations) but alsoth e permeability (i. e. the permeability coefficient) of the plasmalemma to anions is increased. According to the model proposed for the salt-stimulated decrease in the resistance to passive anion permeation the plasmalemma may be considered a lipid lattice-electrofilter. The nature of the coupling of the counter fluxes is discussed.

The Cell's Biological Rods and Ropes

MRS Bulletin ◽  
1999 ◽  
Vol 24 (10) ◽  
pp. 27-31 ◽  
Author(s):  
David Boal
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Chemical Composition ◽  
Intermediate Filaments ◽  
Plant Cells ◽  
Cell Type ◽  
Animal Cells ◽  
Limited Variation ◽  
A Cell ◽  
Mechanical Elements

Despite a variety of shapes and sizes, the generic mechanical structure of cells is remarkably similar from one cell type to the next. All cells are bounded by a plasma membrane, a fluid sheet that controls the passage of materials into and out of the cell. Plant cells and bacteria reinforce this membrane with a cell wall, permitting the cell to operate at an elevated osmotic pressure. Simple cells, such as the bacterium shown in Figure 1a, possess a fairly homogeneous interior containing the cell's genetic blueprint and protein workhorses, but no mechanical elements. In contrast, as can be seen in Figure 1b, plant and animal cells contain internal compartments and a filamentous cytoskeleton—a network of biological ropes, cables, and poles that helps maintain the cell's shape and organize its contents.Four principal types of filaments are found in the cytoskeleton: spectrin, actin, microtubules, and a family of intermediate filaments. Not all filaments are present in all cells. The chemical composition of the filaments shows only limited variation from one cell to another, even in organisms as diverse as humans and yeasts. Membranes have a more variable composition, consisting of a bi-layer of dual-chain lipid molecules in which are embedded various proteins and frequently a moderate concentration of cholesterol. The similarity of the cell's mechanical elements in chemical composition and physical characteristics encourages us to search for universal strategies that have developed in nature for the engineering specifications of the cell. In this article, we concentrate on the cytoskeleton and its filaments.

Imaging calcium entering the cytosol through a single opening of plasma membrane ion channels: SCCaFTs—fundamental calcium events

Cell Calcium ◽  
2004 ◽  
Vol 35 (6) ◽  
pp. 523-533 ◽  
Author(s):  
Hui Zou ◽  
Lawrence M Lifshitz ◽  
Richard A Tuft ◽  
Kevin E Fogarty ◽  
Joshua J Singer
Keyword(s):  
Plasma Membrane ◽  
Ion Channels ◽  
Single Opening

Plasma membrane preparations from suspension cultured plant cells contain the enzymes for the recycling of phosphatidic acid and diacylglycerol

Plant Science ◽  
1992 ◽  
Vol 87 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Josef B. Wissing ◽  
Lydia Grabowski ◽  
Eberhard Drewitz ◽  
Andreas Hanenberg ◽  
Claudia Wylegalla ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Phosphatidic Acid ◽  
Plant Cells
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