How much of the stress-induced gene expression
changes are associated with alterations in DNA
methylation and histone modification marks? Are
stress-induced DNA and histone modifications during
acclimation or during the first experience of stress memorized
and inherited mitotically and meiotically? What are
the adaptive values of epigenetic stress memory? This
review briefly describes epigenetic processes, and then
focuses on recent data on the epigenetic regulation of
stress responses and its heritability in plants.