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 factors in rice (Oryza sativa L.): genome-wide expression analysis during reproductive development and abiotic stress.
TL;DR: expression profiling through microarray and quantitative real-time PCR showed that eight OsHsfs express at a higher level during seed development, while six HSFs are up-regulated in all the abiotic stresses studied, and a unique stable constitutive expression of OsHsfA1 was revealed across all the tissues and stresses.
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Multi-Level Interactions Between Heat Shock Factors, Heat Shock Proteins, and the Redox System Regulate Acclimation to Heat.
TL;DR: This review examines the evidence for crosstalk between the classical heat stress response, which consists of heat shock factors (HSFs) and heat shock proteins (HSPs), with the ROS network at multiple levels in the heat response process, and proposes a model on HSFs, HSPs, ROS, and ROS scavenger interactions.
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Dephosphorylation of Photosystem II Reaction Center Proteins in Plant Photosynthetic Membranes as an Immediate Response to Abrupt Elevation of Temperature
Anne Rokka,Eva-Mari Aro,Reinhold G. Herrmann,Bertil Andersson,Bertil Andersson,Alexander V. Vener +5 more
TL;DR: Dissociation of TLP40 caused by an abrupt elevation in temperature and activation of the membrane protein phosphatase are suggested to trigger accelerated repair of photodamaged PSII and to operate as possible early signals initiating other heat shock responses in chloroplasts.
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Plant Hsp70 molecular chaperones: Protein structure, gene family, expression and function
TL;DR: Stress-induced Hsp70s function to mitigate aggregation of stress-denatured proteins and to refold non-native proteins restoring their biological function through iterative cycles of adenine nucleotide hydrolysis-dependent peptide binding and release.
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Heat stress in crop plants: its nature, impacts and integrated breeding strategies to improve heat tolerance
TL;DR: The progressive tailoring of the heat-tolerant genotypes demands a rational integration of molecular breeding, functional genomics and transgenic technologies reinforced with the next-generation phenomics facilities.
References
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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.