A two-dimensional many-body system with competing interactions as a model for segregation of photosystems in thylakoids of green plants. Rojdestvenski, I., Ivanov, A. G., Cottam, M. G., & Oquist, G. European Biophysics Journal, 29(3):214–220, June, 2000. Paper doi abstract bibtex We address the segregation of photosystems I (PSI) and II (PSII) in thylakoid membranes by means of a molecular dynamics method. We assume a two-dimensional (in-plane) problem with PSI and PSII being represented by particles with different values of negative charge. The pair interactions between particles include a screened Coulomb repulsive part and am exponentially decaying attractive part. Our modeling results suggest that the system may have a complicated phase behavior, including a quasi-crystalline phase at low ionic screening, a disordered phase and, in addition, a possible “clotting” agglomerate phase at high screening where the photosystems tend to clot together. The relevance of the observed phenomena to the stacking of thylakoid membranes is discussed.
@article{rojdestvenski_two-dimensional_2000,
title = {A two-dimensional many-body system with competing interactions as a model for segregation of photosystems in thylakoids of green plants},
volume = {29},
issn = {1432-1017},
url = {https://doi.org/10.1007/s002490000080},
doi = {10.1007/s002490000080},
abstract = {We address the segregation of photosystems I (PSI) and II (PSII) in thylakoid membranes by means of a molecular dynamics method. We assume a two-dimensional (in-plane) problem with PSI and PSII being represented by particles with different values of negative charge. The pair interactions between particles include a screened Coulomb repulsive part and am exponentially decaying attractive part. Our modeling results suggest that the system may have a complicated phase behavior, including a quasi-crystalline phase at low ionic screening, a disordered phase and, in addition, a possible “clotting” agglomerate phase at high screening where the photosystems tend to clot together. The relevance of the observed phenomena to the stacking of thylakoid membranes is discussed.},
language = {en},
number = {3},
urldate = {2021-11-08},
journal = {European Biophysics Journal},
author = {Rojdestvenski, I. and Ivanov, A. G. and Cottam, M. G. and Oquist, G.},
month = jun,
year = {2000},
pages = {214--220},
}
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