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Int. J. Mol. Sci. 2013, 14(5), 9396-9407; doi:10.3390/ijms14059396

Recent Advances in Understanding the Control of Secretory Proteins by the Unfolded Protein Response in Plants

Genetically Modified Organism Research Center, National Institute of Agrobiological Sciences, Kannondai 2-1-2, Tsukuba, Ibaraki 305-8602, Japan
Author to whom correspondence should be addressed.
Received: 1 April 2013 / Revised: 17 April 2013 / Accepted: 18 April 2013 / Published: 29 April 2013
(This article belongs to the Special Issue Regulation of Membrane Trafficking and Its Potential Implications)
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The membrane transport system is built on the proper functioning of the endoplasmic reticulum (ER). The accumulation of unfolded proteins in the ER lumen (ER stress) disrupts ER homeostasis and disturbs the transport system. In response to ER stress, eukaryotic cells activate intracellular signaling (named the unfolded protein response, UPR), which contributes to the quality control of secretory proteins. On the other hand, the deleterious effects of UPR on plant health and growth characteristics have frequently been overlooked, due to limited information on this mechanism. However, recent studies have shed light on the molecular mechanism of plant UPR, and a number of its unique characteristics have been elucidated. This study briefly reviews the progress of understanding what is happening in plants under ER stress conditions.
Keywords: secretory proteins; endoplasmic reticulum stress; unfolded protein response secretory proteins; endoplasmic reticulum stress; unfolded protein response

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Hayashi, S.; Wakasa, Y.; Takaiwa, F. Recent Advances in Understanding the Control of Secretory Proteins by the Unfolded Protein Response in Plants. Int. J. Mol. Sci. 2013, 14, 9396-9407.

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