A Virulence-Associated Glycolipid with Distinct Conformational Attributes: Impact on Lateral Organization of Host Plasma Membrane, Autophagy, and Signaling

2020 ◽  
Vol 15 (3) ◽  
pp. 740-750 ◽  
Author(s):  
Ruchika Dadhich ◽  
Manjari Mishra ◽  
Shangbo Ning ◽  
Santanu Jana ◽  
Vikram A. Sarpe ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Host Plasma Membrane ◽  
Lateral Organization

Immunogold localization of callose and other plant cell wall components in soybean roots infected with the oomycete Phytophthora sojae

1997 ◽  
Vol 75 (9) ◽  
pp. 1509-1517 ◽  
Author(s):  
K. Enkerli ◽  
C. W. Mims ◽  
M. G. Hahn
Keyword(s):  
Plasma Membrane ◽  
Plant Cell Wall ◽  
Arabinogalactan Proteins ◽  
Phytophthora Sojae ◽  
Arabinogalactan Protein ◽  
Electron Microscopic ◽  
Rhamnogalacturonan I ◽  
Host Plasma Membrane ◽  
Wall Appositions ◽  
Extrahaustorial Matrix

Immunolabeling and transmission electron microscopic techniques were used to investigate the chemical nature of wall appositions in roots of susceptible and resistant soybean plants inoculated with Phytophthora sojae race 2. The extrahaustorial matrix associated with the haustorium of Phytophthora sojae also was examined. Antibodies against (1 → 3)-β-glucan, a terminal α-fucosyl-containing epitope present in xyloglucan and rhamnogalacturonan I, and an arabinosylated (1 → 6)-β-galactan epitope present in arabinogalactan proteins were used. (1 → 3)-β-Glucan (callose), xyloglucan, and arabinogalactan proteins were found to be localized in all wall appositions regardless of how long after inoculation the appositions developed or whether plants were susceptible or resistant to Phytophthora sojae. (1 → 3)-β-Glucan also was found in fungal walls and at host cell plasmodesmata. None of the four antibodies labeled the extrahaustorial matrix. The antibody against arabinogalactan protein recognized the host plasma membrane, but not the invaginated host plasma membrane associated with the extrahaustorial matrix. This result indicates that the properties or the composition of the host plasma membrane may change locally once it becomes an extrahaustorial membrane. Key words: Phytophthora sojae, Glycine max, callose, immunolabeling, wall appositions, papillae.

Continuity of Host Plasma Membrane Around Haustoria of Melampsora Lini

Mycologia ◽  
1970 ◽  
Vol 62 (3) ◽  
pp. 609-614 ◽  
Author(s):  
Larry J. Littlefield ◽  
Charles E. Bracker
Keyword(s):  
Plasma Membrane ◽  
Melampsora Lini ◽  
Host Plasma Membrane

scholarly journals The Lateral Organization and Mobility of Plasma Membrane Components

Cell ◽  
2019 ◽  
Vol 177 (4) ◽  
pp. 806-819 ◽  
Author(s):  
Ken Jacobson ◽  
Ping Liu ◽  
B. Christoffer Lagerholm
Keyword(s):  
Plasma Membrane ◽  
Membrane Components ◽  
Lateral Organization

Ultrastructure of compatible and incompatible reactions of sunflower to Plasmopara halstedii

1979 ◽  
Vol 57 (4) ◽  
pp. 315-323 ◽  
Author(s):  
Glenn Wehtje ◽  
Larry J. Littlefield ◽  
David E. Zimmer
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Host Cell ◽  
Epidermal Cell ◽  
Cortical Cell ◽  
Hypersensitive Reaction ◽  
Host Cells ◽  
Plasmopara Halstedii ◽  
Host Cell Wall ◽  
Host Plasma Membrane

Penetration of sunflower, Heliantluis animus, root epidermal cells by zoospores of Plasmopara halstedii is preceded by formation of a papilla on the inner surface of the host cell wall that invaginates the host plasma membrane. Localized degradation and penetration of the host cell wall by the pathogen follow. The invading fungus forms an allantoid primary infection vesicle in the penetrated epidermal cell. The host plasma membrane invaginates around the infection vesicle but its continuity is difficult to follow. Upon exit from the epidermal cell the fungus may grow intercellularly, producing terminal haustorial branches which extend into adjacent host cells. The fungus may grow through one or two cortical cell is after growing from the epidermal cell before it becomes intercellular. Host plasma membrane is not penetrated by haustoria. Intercellular hyphae grow toward the apex of the plant and ramify the seedling tissue. Resistance in an immune cultivar is hypersensitive and is triggered upon contact of the host cell with the encysting zoospore before the host cell wall is penetrated. Degeneration of zoospore cytoplasm accompanies the hypersensitive reaction of the host. Zoospores were often parasitized by bacteria and did not germinate unless penicillin and streptomycin were added to the inoculum suspension.

scholarly journals Critical Phenomena in Plasma Membrane Organization and Function

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Thomas R. Shaw ◽  
Subhadip Ghosh ◽  
Sarah L. Veatch
Keyword(s):  
Plasma Membrane ◽  
Critical Phenomena ◽  
Model Systems ◽  
Annual Review ◽  
Publication Date ◽  
Membrane Composition ◽  
Lipid Organization ◽  
And Function ◽  
Lateral Organization ◽  
Liquid Liquid Phase Separation

Lateral organization in the plane of the plasma membrane is an important driver of biological processes. The past dozen years have seen increasing experimental support for the notion that lipid organization plays an important role in modulating this heterogeneity. Various biophysical mechanisms rooted in the concept of liquid–liquid phase separation have been proposed to explain diverse experimental observations of heterogeneity in model and cell membranes with distinct but overlapping applicability. In this review, we focus on the evidence for and the consequences of the hypothesis that the plasma membrane is poised near an equilibrium miscibility critical point. Critical phenomena explain certain features of the heterogeneity observed in cells and model systems but also go beyond heterogeneity to predict other interesting phenomena, including responses to perturbations in membrane composition. Expected final online publication date for the Annual Review of Physical Chemistry, Volume 72 is April 20, 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

scholarly journals CMPG1-dependent cell death follows perception of diverse pathogen elicitors at the host plasma membrane and is suppressed by Phytophthora infestans RXLR effector AVR3a

2011 ◽  
Vol 190 (3) ◽  
pp. 653-666 ◽  
Author(s):  
Eleanor M. Gilroy ◽  
Rosalind M. Taylor ◽  
Ingo Hein ◽  
Petra Boevink ◽  
Ari Sadanandom ◽  
...  
Keyword(s):  
Cell Death ◽  
Plasma Membrane ◽  
Phytophthora Infestans ◽  
Rxlr Effector ◽  
Host Plasma Membrane ◽  
Dependent Cell

scholarly journals ShigellaInvasion of Macrophage Requires the Insertion of IpaC into the Host Plasma Membrane

2001 ◽  
Vol 276 (34) ◽  
pp. 32230-32239 ◽  
Author(s):  
Asaomi Kuwae ◽  
Sei Yoshida ◽  
Koichi Tamano ◽  
Hitomi Mimuro ◽  
Toshihiko Suzuki ◽  
...  
Keyword(s):  
Plasma Membrane ◽  
Host Plasma Membrane
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