Epigenetic Environmental Memories in Plants: Establishment, Maintenance, and Reprogramming.
Trends Genet
; 34(11): 856-866, 2018 11.
Article
em En
| MEDLINE
| ID: mdl-30144941
ABSTRACT
Plants are immobile and must respond to or endure fluctuating surroundings and diverse environmental challenges. Environmental inputs often induce chromatin modifications at various responsive genes and consequent changes in their expression. Environment-induced chromatin marks at certain loci are transmittable through cell divisions after relief from the original external signals, leading to acquired 'memorization' of environmental experiences in plants, namely epigenetic environmental memories, which enable plants to adapt to environmental changes or to perform better when events recur. Here, we review recent progress in epigenetic or chromatin-mediated environmental memories in plants, including defense priming, stress memories, and 'epigenetic memory of winter cold' or vernalization. Various advances in epigenetic mechanisms underlying plant-environment interactions highlight that plant environmental epigenetics is emerging as an important area in plant biology.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Estresse Fisiológico
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Cromatina
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Metilação de DNA
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Epigênese Genética
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article