2020
DOI: 10.1016/j.molp.2020.06.006
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Regulation of Leaf Longevity by DML3-Mediated DNA Demethylation

Abstract: Leaf senescence is driven by the expression of senescence-associated genes (SAGs). Developmentspecific genes often undergo DNA demethylation in their promoter and other regions, which regulates gene expression. Whether and how DNA demethylation regulates the expression of SAGs and thus leaf senescence remain elusive. Whole-genome bisulfite sequencing (WGBS) analyses of wild-type (WT) and demeter-like 3 (dml3) Arabidopsis leaves at three developmental stages revealed hypermethylation during leaf senescence in d… Show more

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Cited by 38 publications
(48 citation statements)
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“…Generally, the initiation of leaf senescence is age-dependent and triggered by developmental cues [5]. Additionally, leaf senescence is tightly controlled by epigenetic modification, circadian clock, autophagy, chlorophyll metabolism, and transcriptional regulation [6][7][8][9][10][11][12][13][14][15][16][17]. Meanwhile, when plants encounter abiotic and biotic stresses, the initiation of senescence will be accelerated [5,18].…”
Section: Introductionmentioning
confidence: 99%
“…Generally, the initiation of leaf senescence is age-dependent and triggered by developmental cues [5]. Additionally, leaf senescence is tightly controlled by epigenetic modification, circadian clock, autophagy, chlorophyll metabolism, and transcriptional regulation [6][7][8][9][10][11][12][13][14][15][16][17]. Meanwhile, when plants encounter abiotic and biotic stresses, the initiation of senescence will be accelerated [5,18].…”
Section: Introductionmentioning
confidence: 99%
“…Leaf senescence is a developmentally programmed or environmentally induced process by which cells activate the programmed cell death response (PCD), resulting in the relocation of nutrients towards different organs. Leaf senescence is not an unregulated cell death process initiated by aging; it is rather a sophisticated biochemical and genetic mechanism that controls cell/tissue/organism development through dynamic modulation of gene expression, metabolic reprogramming, and structural changes [ 1 , 2 , 3 , 4 , 5 , 6 ]. At the cellular level, leaf senescence can be modulated by environmental stimuli, signaling components, metabolism regulators, and phytohormones, although hormones are the major players in the different stages of leaf senescence.…”
Section: Introductionmentioning
confidence: 99%
“…This entire process is tightly regulated by gene expression control and hormone signaling. Thus, several transcription factors have been identified as modulating the expression of CCG genes upon hormone triggering and stress/environmental conditions [ 4 , 5 , 6 , 7 , 8 , 9 ].…”
Section: Introductionmentioning
confidence: 99%
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“…Then, nutrients transfer from senescent parts to developing and storage organs (Thomas and Ougham, 2014 ; Kim et al, 2018 ; Koyama, 2018 ; Zhang et al, 2018b ; Woo et al, 2019 ). Meanwhile, the initiation and progression of leaf senescence are also governed by numerous senescence-related genes that function in phytohormone pathways, transcriptional regulation, epigenetic modification, autophagy, circadian clock, DNA damage repair, and chlorophyll metabolism and light (Jia et al, 2019 ; Li et al, 2020 ; Xie et al, 2020 ; Xu et al, 2020 ; Yuan et al, 2020 ).…”
Section: Introductionmentioning
confidence: 99%