Regulation of the Heat-Shock Response
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TLDR
The heat-shock response is a conserved reaction of cells and organisms to elevated temperatures (heat shock or heat stress).Abstract:
The heat-shock response is a conserved reaction of cells and organisms to elevated temperatures (heat shock or heat stress). Whereas severe heat stress leads to cellular damage and cell death, sublethal doses of heat stress induce a cellular response, the heat-shock response, which (a) protectsread more
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Heat shock increases mitochondrial H2O2 production and extends postharvest life of spinach leaves
Facundo Martin Gomez,Laura Fernández,Gustavo Gergoff,Juan José Guiamet,Alicia Raquel Chaves,Carlos Guillermo Bartoli +5 more
TL;DR: The effects of moderate heat shock (HS) treatments on the senescence of detached spinach leaves have been studied in this paper, showing that high-temperature treatments did not prevent the loss of water soluble antioxidant concentrations, while the ratio of reduced/oxidised forms of ascorbic acid was higher 3
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Enhanced expression of BiP is associated with treatments that extend storage longevity of primed tomato seeds
TL;DR: Enhanced BiP expression may contribute to the improved longevity of primed seeds following postpriming treatments, as it is implicated in the acquisition of desiccation tolerance during seed maturation.
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Water-stress-induced thermotolerance of photosynthesis in bean (Phaseolus vulgaris L.) plants: The possible involvement of lipid composition and xanthophyll cycle pigments
TL;DR: The aim of this study was to assess a possible cross-resistance between water stress and high-temperature stress and to gain a better knowledge regarding the physiological basis for heat resistance.
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Accumulation of plant small heat-stress proteins in storage organs
Olga Lubaretz,Uta zur Nieden +1 more
TL;DR: The occurrence of sHSPs in perennial plant storage organs seems to be associated with the presence of storage proteins, especially in embryos of transgenic tobacco plants, which do not contain any protein bodies or storage proteins.
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Generation of dominant-negative effects on the heat shock response in Arabidopsis thaliana by transgenic expression of a chimaeric HSF1 protein fusion construct.
TL;DR: The kinetics of HSP expression suggest that the negative effect of EN-HSF1 is stronger in the early phase of the heat shock response, and that the reduction in mRNA levels is partially compensated at the translational level.
References
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Journal ArticleDOI
Heat Shock Transcription Factors: Structure and Regulation
TL;DR: Analysis of HSF cDNA clones from many species has defined structural and regulatory regions responsible for the inducible activities of the conserved heat shock transcription factor.
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ATP-dependent nucleosome disruption at a heat-shock promoter mediated by binding of GAGA transcription factor
TL;DR: The chromatin structure of the hsp70 promoter is reconstructed using an in vitro nucleosome assembly system, suggesting that an energy-dependent pathway is involved in chromatin remodelling.
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Molecular chaperones and protein folding in plants.
TL;DR: This review summarizes the current understanding of how molecular chaperones function in plants, with a major focus on those systems where the most detailed mechanistic data are available, or where features of the chaperone/foldase system or substrate proteins are unique to plants.
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Regulation of heat shock factor trimer formation: role of a conserved leucine zipper
TL;DR: The results suggest that the carboxyl-terminal zipper may suppress formation of trimers by the amino- terminal HSF zipper elements by means of intramolecular coiled-coil interactions that are sensitive to heat shock.