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@article{1315670,
author = {Zwiewka, Marta and Nodzynski, Tomasz and Robert, Stephanie and Vanneste, Steffen and Friml, Jiří},
article_location = {Cambridge (USA)},
article_number = {8},
doi = {http://dx.doi.org/10.1016/j.molp.2015.03.007},
keywords = {osmotic stress; protein trafficking; clathrin-mediated endocytosis; auxin},
language = {eng},
issn = {1674-2052},
journal = {Molecular Plant},
title = {Osmotic Stress Modulates the Balance between Exocytosis and Clathrin-Mediated Endocytosis in Arabidopsis thaliana},
url = {http://ac.els-cdn.com/S1674205215001756/1-s2.0-S1674205215001756-main.pdf?_tid=20ada804-7eed-11e5-9ff1-00000aacb35e&acdnat=1446199442_8b5124fda4cff4ecfa95b0073004473c},
volume = {8},
year = {2015}
}
TY - JOUR
ID - 1315670
AU - Zwiewka, Marta - Nodzynski, Tomasz - Robert, Stephanie - Vanneste, Steffen - Friml, Jiří
PY - 2015
TI - Osmotic Stress Modulates the Balance between Exocytosis and Clathrin-Mediated Endocytosis in Arabidopsis thaliana
JF - Molecular Plant
VL - 8
IS - 8
SP - 1175-1187
EP - 1175-1187
PB - Cell Press
SN - 16742052
KW - osmotic stress
KW - protein trafficking
KW - clathrin-mediated endocytosis
KW - auxin
UR - http://ac.els-cdn.com/S1674205215001756/1-s2.0-S1674205215001756-main.pdf?_tid=20ada804-7eed-11e5-9ff1-00000aacb35e&acdnat=1446199442_8b5124fda4cff4ecfa95b0073004473c
L2 - http://ac.els-cdn.com/S1674205215001756/1-s2.0-S1674205215001756-main.pdf?_tid=20ada804-7eed-11e5-9ff1-00000aacb35e&acdnat=1446199442_8b5124fda4cff4ecfa95b0073004473c
N2 - The sessile life style of plants creates the need to deal with an often adverse environment, in which water availability can change on a daily basis, challenging the cellular physiology and integrity. Changes in osmotic conditions disrupt the equilibrium of the plasma membrane: hypoosmotic conditions increase and hyperosmotic environment decrease the cell volume. Here, we show that short-term extracellular osmotic treatments are closely followed by a shift in the balance between endocytosis and exocytosis in root meristem cells. Acute hyperosmotic treatments (ionic and nonionic) enhance clathrin-mediated endocytosis simultaneously attenuating exocytosis, whereas hypoosmotic treatments have the opposite effects. In addition to clathrin recruitment to the plasma membrane, components of early endocytic trafficking are essential during hyperosmotic stress responses. Consequently, growth of seedlings defective in elements of clathrin or early endocytic machinery is more sensitive to hyperosmotic treatments. We also found that the endocytotic response to a change of osmotic status in the environment is dominant over the presumably evolutionary more recent regulatory effect of plant hormones, such as auxin. These results imply that osmotic perturbation influences the balance between endocytosis and exocytosis acting through clathrin-mediated endocytosis. We propose that tension on the plasma membrane determines the addition or removal of membranes at the cell surface, thus preserving cell integrity.
ER -
ZWIEWKA, Marta, Tomasz NODZYNSKI, Stephanie ROBERT, Steffen VANNESTE a Jiří FRIML. Osmotic Stress Modulates the Balance between Exocytosis and Clathrin-Mediated Endocytosis in Arabidopsis thaliana. \textit{Molecular Plant}. Cambridge (USA): Cell Press, 2015, roč.~8, č.~8, s.~1175-1187. ISSN~1674-2052. Dostupné z: https://dx.doi.org/10.1016/j.molp.2015.03.007.
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