Abstract
In nature, plants are exposed to several environmental stresses that can be continuous or recurring. Continuous stress can be lethal, but stress after priming can increase the tolerance of a plant to better prepare for future stresses. Reports have suggested that transcription factors are involved in stress memory after recurrent stress; however, less is known about the factors that regulate the resetting of stress memory. Here, we uncovered a role for Constitutive Photomorphogenesis 5A (CSN5A) in the regulation of stress memory for resetting transcriptional memory genes (APX2 and HSP22) and H3K4me3 following recurrent heat stress. Furthermore, CSN5A is also required for the deposition of H3K4me3 following recurrent heat stress. Thus, CSN5A plays an important role in the regulation of histone methylation and transcriptional stress memory after recurrent heat stress.
Original language | English |
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Article number | 668 |
Journal | Biomolecules |
Volume | 11 |
Issue number | 5 |
DOIs | |
State | Published - 1 May 2021 |
Keywords
- COP9 signalosome
- Histone methylation
- Hypomorphic mutant
- Recurrent heat stress
- Transcriptional stress memory
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology