Membrane lipid composition affects plant heat sensing and modulates Ca ( 2+) -dependent heat shock response.

Details

Serval ID
serval:BIB_E05E8A3EFB76
Type
Article: article from journal or magazin.
Collection
Publications
Title
Membrane lipid composition affects plant heat sensing and modulates Ca ( 2+) -dependent heat shock response.
Journal
Plant Signaling and Behavior
Author(s)
Saidi Y., Peter M., Finka A., Cicekli C., Vigh L., Goloubinoff P.
ISSN
1559-2324 (Electronic)
ISSN-L
1559-2316
Publication state
Published
Issued date
2010
Volume
5
Number
12
Pages
1530-1533
Language
english
Abstract
Understanding how plants sense and respond to heat stress is central to improve crop tolerance and productivity. Recent findings in Physcomitrella patensdemonstrated that the controlled passage of calcium ions across the plasma membrane regulates the heat shock response (HSR). To investigate the effect of membrane lipid composition on the plant HSR, we acclimated P. patens to a slightly elevated yet physiological growth temperature and analysed the signature of calcium influx under a mild heat shock. Compared to tissues grown at 22°C, tissues grown at 32°C had significantly higher overall membrane lipid saturation level and, when submitted to a short heat shock at 35°C, displayed a noticeably reduced calcium influx and a consequent reduced heat shock gene expression. These results show that temperature differences, rather than the absolute temperature, determine the extent of the plant HSR and indicate that membrane lipid composition regulates the calcium-dependent heat-signaling pathway.
Pubmed
Create date
18/05/2011 10:37
Last modification date
20/08/2019 17:04
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