Overexpression of histone demethylase gene SlJMJ524 from tomato confers Cd tolerance by regulating metal transport-related protein genes and flavonoid content in Arabidopsis

Li, Qian; Sun, Wei-Yue; Chen, Chao; Dong, Dingxiao; Cao, Yaoliang; Dong, Yan; Yu, Lijie; ZhongHui, Yue; Jin, Xiaoxia

doi:10.1016/j.plantsci.2022.111205

Cited by 15 publications

(4 citation statements)

References 47 publications

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“…Transcriptomic analyses upon metal(loid) treatments have highlighted the selective modulation of genes involved in DNA methylation and demethylation [ 48 , 49 , 50 ], in histone modification and chromatin remodelling [ 49 , 51 , 52 ]. Furthermore, the overexpression or mutation of genes involved in epigenetic modifications was proved to alter plant tolerance to PTEs [ 53 , 54 , 55 , 56 ], further supporting the involvement of these mechanisms in metal tolerance and accumulation. For example, in A. thaliana , the inhibition of DNA demethylases ROS1, DML2, and DML3 determined an increase in DNA methylation upon Cd exposure, which in turn strengthened plant tolerance to Cd stress by improving Fe status in the roots [ 54 ].…”

Section: Epigenetic Mechanisms In Plant Interaction With Ptesmentioning

confidence: 98%

Epigenetic Control of Plant Response to Heavy Metals

Fasani,

Giannelli,

Varotto

et al. 2023

Plants

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Plants are sessile organisms that must adapt to environmental conditions, such as soil characteristics, by adjusting their development during their entire life cycle. In case of low-distance seed dispersal, the new generations are challenged with the same abiotic stress encountered by the parents. Epigenetic modification is an effective option that allows plants to face an environmental constraint and to share the same adaptative strategy with their progeny through transgenerational inheritance. This is the topic of the presented review that reports the scientific progress, up to date, gained in unravelling the epigenetic response of plants to soil contamination by heavy metals and metalloids, collectively known as potentially toxic elements. The effect of the microbial community inhabiting the rhizosphere is also considered, as the evidence of a transgenerational transfer of the epigenetic status that contributes to the activation in plants of response mechanisms to soil pollution.

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Section: Epigenetic Mechanisms In Plant Interaction With Ptesmentioning

confidence: 98%

Epigenetic Control of Plant Response to Heavy Metals

Fasani,

Giannelli,

Varotto

et al. 2023

Plants

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“…In addition to salt and drought stress, histone methylation also modulates tomato resistance to heavy metal, such as Cd (cadmium). Overexpression of the histone demethylase SlJMJ524 exhibited enhanced tolerance to cadmium at the adult stage, showing lower Cd uptake and accumulation compared to WT plants [81]. Conversely, the overexpression of SlJMJ4 promotes ABA-induced leaf senescence by decreasing H3K27me3 levels of ABA synthesis-related genes SlNAP2 (Sl NAC domain-containing Protein 2), SlORE1 (Sl ORESARA1), and SlNCED3 (Sl Nine-Cis Epoxycarotenoid Dioxygenase 3), as well as activating their expression.…”

Section: Abiotic Stressmentioning

confidence: 98%

Unlocking the Secret to Higher Crop Yield: The Potential for Histone Modifications

Fang

Fasano

Perrella

2023

Plants

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Histone modifications are epigenetic mechanisms, termed relative to genetics, and they refer to the induction of heritable changes without altering the DNA sequence. It is widely known that DNA sequences precisely modulate plant phenotypes to adapt them to the changing environment; however, epigenetic mechanisms also greatly contribute to plant growth and development by altering chromatin status. An increasing number of recent studies have elucidated epigenetic regulations on improving plant growth and adaptation, thus making contributions to the final yield. In this review, we summarize the recent advances of epigenetic regulatory mechanisms underlying crop flowering efficiency, fruit quality, and adaptation to environmental stimuli, especially to abiotic stress, to ensure crop improvement. In particular, we highlight the major discoveries in rice and tomato, which are two of the most globally consumed crops. We also describe and discuss the applications of epigenetic approaches in crop breeding programs.

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“…The Jumonji-C-domain-containing protein (JMJ) belongs to histone demethylases. Increased expression of the SIJMJ524 gene was noted in tomato plants under Hg, Pb and Cu treatment ( Li et al., 2022 ). Its overexpression in Arabidopsis modulated tolerance towards Cd.…”

Section: Histone Modificationsmentioning

confidence: 99%

“…The mutant plants accumulated higher levels of flavonoid, which was accompanied by increased expression of PAL ( phenylalanine ammonia lyase ) and FLS ( flavonol synthase ) genes. On the other hand the DFR ( dihydroflavonol 4-reductase ) and CHI ( chalcone isomerase) expression was decreased ( Li et al., 2022 ).…”

Section: Histone Modificationsmentioning

confidence: 99%

The role of epigenetic and epitranscriptomic modifications in plants exposed to non-essential metals

Chmielowska-Bąk,

Searle,

Wakai

et al. 2023

Front. Plant Sci.

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Contamination of the soil with non-essential metals and metalloids is a serious problem in many regions of the world. These non-essential metals and metalloids are toxic to all organisms impacting crop yields and human health. Crop plants exposed to high concentrations of these metals leads to perturbed mineral homeostasis, decreased photosynthesis efficiency, inhibited cell division, oxidative stress, genotoxic effects and subsequently hampered growth. Plants can activate epigenetic and epitranscriptomic mechanisms to maintain cellular and organism homeostasis. Epigenetic modifications include changes in the patterns of cytosine and adenine DNA base modifications, changes in cellular non-coding RNAs, and remodeling histone variants and covalent histone tail modifications. Some of these epigenetic changes have been shown to be long-lasting and may therefore contribute to stress memory and modulated stress tolerance in the progeny. In the emerging field of epitranscriptomics, defined as chemical, covalent modifications of ribonucleotides in cellular transcripts, epitranscriptomic modifications are postulated as more rapid modulators of gene expression. Although significant progress has been made in understanding the plant’s epigenetic changes in response to biotic and abiotic stresses, a comprehensive review of the plant’s epigenetic responses to metals is lacking. While the role of epitranscriptomics during plant developmental processes and stress responses are emerging, epitranscriptomic modifications in response to metals has not been reviewed. This article describes the impact of non-essential metals and metalloids (Cd, Pb, Hg, Al and As) on global and site-specific DNA methylation, histone tail modifications and epitranscriptomic modifications in plants.

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Overexpression of histone demethylase gene SlJMJ524 from tomato confers Cd tolerance by regulating metal transport-related protein genes and flavonoid content in Arabidopsis

Cited by 15 publications

References 47 publications

Epigenetic Control of Plant Response to Heavy Metals

Epigenetic Control of Plant Response to Heavy Metals

Unlocking the Secret to Higher Crop Yield: The Potential for Histone Modifications

The role of epigenetic and epitranscriptomic modifications in plants exposed to non-essential metals

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