| Title: | Transcriptional 'memory' of a stress: transient chromatin and memory (epigenetic) marks at stress-response genes |
| Address: | "School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA" |
| ISSN/ISBN: | 1365-313X (Electronic) 0960-7412 (Linking) |
| Abstract: | "Drought, salinity, extreme temperature variations, pathogen and herbivory attacks are recurring environmental stresses experienced by plants throughout their life. To survive repeated stresses, plants provide responses that may be different from their response during the first encounter with the stress. A different response to a similar stress represents the concept of 'stress memory'. A coordinated reaction at the organismal, cellular and gene/genome levels is thought to increase survival chances by improving the plant's tolerance/avoidance abilities. Ultimately, stress memory may provide a mechanism for acclimation and adaptation. At the molecular level, the concept of stress memory indicates that the mechanisms responsible for memory-type transcription during repeated stresses are not based on repetitive activation of the same response pathways activated by the first stress. Some recent advances in the search for transcription 'memory factors' are discussed with an emphasis on super-induced dehydration stress memory response genes in Arabidopsis" |
| Keywords: | "Chromatin/genetics/*metabolism *Epigenesis, Genetic *Gene Expression Regulation, Plant Histones/genetics/metabolism Methylation Nucleosomes/metabolism Plants/genetics Stress, Physiological/*genetics Transcription, Genetic Yeasts/physiology Arabidopsis tha;" |
| Notes: | "MedlineAvramova, Zoya eng Review England 2015/03/20 Plant J. 2015 Jul; 83(1):149-59. doi: 10.1111/tpj.12832. Epub 2015 Apr 15" |
