Результаты исследований: Научные публикации в периодических изданиях › Обзорная статья › Рецензирование
Transition from seeds to seedlings: Hormonal and epigenetic aspects. / Smolikova , Galina ; Strygina, Ksenia ; Krylova , Ekaterina ; Leonova, Tatiana ; Frolov , Andrej ; Khlestkina, Elena ; Medvedev, Sergei .
в: Plants, Том 10, № 9, 1884, 11.09.2021.Результаты исследований: Научные публикации в периодических изданиях › Обзорная статья › Рецензирование
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TY - JOUR
T1 - Transition from seeds to seedlings: Hormonal and epigenetic aspects
AU - Smolikova , Galina
AU - Strygina, Ksenia
AU - Krylova , Ekaterina
AU - Leonova, Tatiana
AU - Frolov , Andrej
AU - Khlestkina, Elena
AU - Medvedev, Sergei
N1 - Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9/11
Y1 - 2021/9/11
N2 - Transition from seed to seedling is one of the critical developmental steps, dramatically affecting plant growth and viability. Before plants enter the vegetative phase of their ontogenesis, massive rearrangements of signaling pathways and switching of gene expression programs are required. This results in suppression of the genes controlling seed maturation and activation of those involved in regulation of vegetative growth. At the level of hormonal regulation, these events are controlled by the balance of abscisic acid and gibberellins, although ethylene, auxins, brassinosteroids, cytokinins, and jasmonates are also involved. The key players include the members of the LAFL network—the transcription factors LEAFY COTYLEDON1 and 2 (LEC 1 and 2), ABSCISIC ACID INSENSITIVE3 (ABI3), and FUSCA3 (FUS3), as well as DELAY OF GERMINATION1 (DOG1). They are the negative regulators of seed germination and need to be suppressed before seedling development can be initiated. This repressive signal is mediated by chromatin remodeling complexes—POLYCOMB REPRESSIVE COMPLEX 1 and 2 (PRC1 and PRC2), as well as PICKLE (PKL) and PICKLE-RELATED2 (PKR2) proteins. Finally, epigenetic methylation of cytosine residues in DNA, histone post-translational modifications, and post-transcriptional downregulation of seed maturation genes with miRNA are discussed. Here, we summarize recent updates in the study of hormonal and epigenetic switches involved in regulation of the transition from seed germination to the post-germination stage.
AB - Transition from seed to seedling is one of the critical developmental steps, dramatically affecting plant growth and viability. Before plants enter the vegetative phase of their ontogenesis, massive rearrangements of signaling pathways and switching of gene expression programs are required. This results in suppression of the genes controlling seed maturation and activation of those involved in regulation of vegetative growth. At the level of hormonal regulation, these events are controlled by the balance of abscisic acid and gibberellins, although ethylene, auxins, brassinosteroids, cytokinins, and jasmonates are also involved. The key players include the members of the LAFL network—the transcription factors LEAFY COTYLEDON1 and 2 (LEC 1 and 2), ABSCISIC ACID INSENSITIVE3 (ABI3), and FUSCA3 (FUS3), as well as DELAY OF GERMINATION1 (DOG1). They are the negative regulators of seed germination and need to be suppressed before seedling development can be initiated. This repressive signal is mediated by chromatin remodeling complexes—POLYCOMB REPRESSIVE COMPLEX 1 and 2 (PRC1 and PRC2), as well as PICKLE (PKL) and PICKLE-RELATED2 (PKR2) proteins. Finally, epigenetic methylation of cytosine residues in DNA, histone post-translational modifications, and post-transcriptional downregulation of seed maturation genes with miRNA are discussed. Here, we summarize recent updates in the study of hormonal and epigenetic switches involved in regulation of the transition from seed germination to the post-germination stage.
KW - desiccation tolerance
KW - DNA Methylation
KW - epigenetics
KW - germination
KW - histone modification
KW - hormonal regulation
KW - miRNA
KW - post-germination
KW - seeds
KW - Seeds
KW - Germination
KW - MiRNA
KW - Desiccation tolerance
KW - Post-germination
KW - Hormonal regulation
KW - DNA methylation
KW - Epigenetics
KW - Histone modification
KW - ARABIDOPSIS-THALIANA
KW - DNA METHYLATION
KW - DORMANCY
KW - GERMINATION
KW - ABSCISIC-ACID
KW - PIVOTAL ROLE
KW - DESICCATION TOLERANCE
KW - MATURATION GENES
KW - NON-CG METHYLATION
KW - CYTOSINE METHYLTRANSFERASE
UR - http://www.scopus.com/inward/record.url?scp=85114701498&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/2fef1053-2664-32aa-97e5-166c5928718d/
U2 - 10.3390/plants10091884
DO - 10.3390/plants10091884
M3 - Review article
VL - 10
JO - Plants
JF - Plants
SN - 2223-7747
IS - 9
M1 - 1884
ER -
ID: 85465482