Epigenetic processes in plant stress priming: Open questions and new approaches.
Curr Opin Plant Biol
; 75: 102432, 2023 10.
Article
in En
| MEDLINE
| ID: mdl-37523900
ABSTRACT
Priming reflects the capacity of plants to memorise environmental stress experience and improve their response to recurring stress. Epigenetic modifications in DNA and associated histone proteins may carry short-term and long-term memory in the same plant or mediate transgenerational effects, but the evidence is still largely circumstantial. New experimental tools now enable scientists to perform targeted manipulations that either prevent or generate a particular epigenetic modification in a particular location of the genome. Such 'reverse epigenetics' approaches allow for the interrogation of causality between individual priming-induced modifications and their role for altering gene expression and plant performance under recurring stress. Furthermore, combining site-directed epigenetic manipulation with conditional and cell-type specific promoters creates novel opportunities to test and engineer spatiotemporal patterns of priming.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
DNA Methylation
/
Epigenesis, Genetic
Language:
En
Journal:
Curr Opin Plant Biol
Journal subject:
BOTANICA
Year:
2023
Document type:
Article
Affiliation country: