Heat shock response in photosynthetic organisms: membrane and lipid connections.

Details

Serval ID
serval:BIB_F6F56099304B
Type
Article: article from journal or magazin.
Publication sub-type
Review (review): journal as complete as possible of one specific subject, written based on exhaustive analyses from published work.
Collection
Publications
Title
Heat shock response in photosynthetic organisms: membrane and lipid connections.
Journal
Progress in Lipid Research
Author(s)
Horváth I., Glatz A., Nakamoto H., Mishkind M.L., Munnik T., Saidi Y., Goloubinoff P., Harwood J.L., Vigh L.
ISSN
1873-2194 (Electronic)
ISSN-L
0163-7827
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Volume
51
Number
3
Pages
208-220
Language
english
Abstract
The ability of photosynthetic organisms to adapt to increases in environmental temperatures is becoming more important with climate change. Heat stress is known to induce heat-shock proteins (HSPs) many of which act as chaperones. Traditionally, it has been thought that protein denaturation acts as a trigger for HSP induction. However, increasing evidence has shown that many stress events cause HSP induction without commensurate protein denaturation. This has led to the membrane sensor hypothesis where the membrane's physical and structural properties play an initiating role in the heat shock response. In this review, we discuss heat-induced modulation of the membrane's physical state and changes to these properties which can be brought about by interaction with HSPs. Heat stress also leads to changes in lipid-based signaling cascades and alterations in calcium transport and availability. Such observations emphasize the importance of membranes and their lipids in the heat shock response and provide a new perspective for guiding further studies into the mechanisms that mediate cellular and organismal responses to heat stress.
Keywords
Heat shock response, Small heat shock proteins, Molecular chaperones, Membrane sensor hypothesis, Transient Ca2+ influx, Membrane fluidizer, Signaling lipids, Phosphatidylinositol 4,5-bisphosphate, Phosphatidic acid
Pubmed
Web of science
Create date
23/07/2012 10:40
Last modification date
20/08/2019 17:23
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