What if the cold days return? Epigenetic mechanisms in plants to cold tolerance

Hereme, Rasme; Galleguillos, Carolina; Morales-Navarro, Samuel; Molina‐Montenegro, Marco A.

doi:10.1007/s00425-021-03694-1

Cited by 13 publications

(5 citation statements)

References 107 publications

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“…In eukaryotes, epigenetic modifications produce various chromatin states for regulating stress-responsive gene expression, thus allowing plants to adapt to harsh and changeable environmental conditions [ 24 , 25 ]. Under chilling stress, the levels of histone modifications are altered, corresponding with gene expression adjustment [ 24 , 25 , 75 ]. A variety of histone modifications, H3K27me3, H3K9ac, and H4K5ac, were shown to be involved in chilling stress [ 76 , 77 , 78 ].…”

Section: Discussionmentioning

confidence: 99%

Coronatine Enhances Chilling Tolerance of Tomato Plants by Inducing Chilling-Related Epigenetic Adaptations and Transcriptional Reprogramming

Liu

et al. 2022

IJMS

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Low temperature is an important environmental factor limiting the widespread planting of tropical and subtropical crops. The application of plant regulator coronatine, which is an analog of Jasmonic acid (JA), is an effective approach to enhancing crop’s resistance to chilling stress and other abiotic stresses. However, the function and mechanism of coronatine in promoting chilling resistance of tomato is unknown. In this study, coronatine treatment was demonstrated to significantly increase tomato chilling tolerance. Coronatine increases H3K4me3 modifications to make greater chromatin accessibility in multiple chilling-activated genes. Corresponding to that, the expression of CBFs, other chilling-responsive transcription factor (TF) genes, and JA-responsive genes is significantly induced by coronatine to trigger an extensive transcriptional reprogramming, thus resulting in a comprehensive chilling adaptation. These results indicate that coronatine enhances the chilling tolerance of tomato plants by inducing epigenetic adaptations and transcriptional reprogramming.

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Section: Discussionmentioning

confidence: 99%

Coronatine Enhances Chilling Tolerance of Tomato Plants by Inducing Chilling-Related Epigenetic Adaptations and Transcriptional Reprogramming

Liu

et al. 2022

IJMS

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“…Abiotic stress response and adaptation Many reviews describe the roles of DNA methylation or epigenetic regulation in plant responses to abiotic stress (Crisp et al, 2016;Chang et al, 2020;Oberkofler et al, 2021;Arora et al, 2022;Liu et al, 2022), including drought (Sadhukhan et al, 2022), high salinity (Singroha et al, 2022), high temperature (Liu et al, 2015a;Perrella et al, 2022), low temperature (Luo and He, 2020;Hereme et al, 2021), and nutrient deficiency (Secco et al, 2017;Fan et al, 2022). Here, we briefly review changes in DNA methylation associated with abiotic stress responses with a focus on the possible roles of active DNA demethylation in these processes.…”

Section: Active Dna Demethylation In Response To External Stimulimentioning

confidence: 99%

Active DNA demethylation in plants: 20 years of discovery and beyond

Zhang

Gong

Zhu

2022

JIPB

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Maintaining proper DNA methylation levels in the genome requires active demethylation of DNA. However, removing the methyl group from a modified cytosine is chemically difficult and therefore, the underlying mechanism of demethylation had remained unclear for many years. The discovery of the first eukaryotic DNA demethylase, Arabidopsis thaliana REPRESSOR OF SILENCING 1 (ROS1), led to elucidation of the 5‐methylcytosine base excision repair mechanism of active DNA demethylation. In the 20 years since ROS1 was discovered, our understanding of this active DNA demethylation pathway, as well as its regulation and biological functions in plants, has greatly expanded. These exciting developments have laid the groundwork for further dissecting the regulatory mechanisms of active DNA demethylation, with potential applications in epigenome editing to facilitate crop breeding and gene therapy.

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“…Among the genes responsive to low temperatures are those that code for soluble sugars and proline, xanthophylls and carotenoids, late embryogenesis abundant proteins, heat shock proteins, cold shock proteins, and dehydrins [22]. Aside from genetic factors, epigenetic factors also participate in a plant's adjustment to temperature stress [23].…”

Section: Introductionmentioning

confidence: 99%

Adjustments of the Phytochemical Profile of Broccoli to Low and High Growing Temperatures: Implications for the Bioactivity of Its Extracts

Šola,

Gmižić,

Pinterić

et al. 2024

IJMS

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Climate change causes shifts in temperature patterns, and plants adapt their chemical content in order to survive. We compared the effect of low (LT) and high (HT) growing temperatures on the phytochemical content of broccoli (Brassica oleracea L. convar. botrytis (L.) Alef. var. cymosa Duch.) microgreens and the bioactivity of their extracts. Using different spectrophotometric, LC-MS/MS, GC-MS, and statistical methods, we found that LT increased the total phenolics and tannins in broccoli. The total glucosinolates were also increased by LT; however, they were decreased by HT. Soluble sugars, known osmoprotectants, were increased by both types of stress, considerably more by HT than LT, suggesting that HT causes a more intense osmotic imbalance. Both temperatures were detrimental for chlorophyll, with HT being more impactful than LT. HT increased hormone indole-3-acetic acid, implying an important role in broccoli’s defense. Ferulic and sinapic acid showed a trade-off scheme: HT increased ferulic while LT increased sinapic acid. Both stresses decreased the potential of broccoli to act against H2O2 damage in mouse embryonal fibroblasts (MEF), human keratinocytes, and liver cancer cells. Among the tested cell types treated by H2O2, the most significant reduction in ROS (36.61%) was recorded in MEF cells treated with RT extracts. The potential of broccoli extracts to inhibit α-amylase increased following both temperature stresses; however, the inhibition of pancreatic lipase was increased by LT only. From the perspective of nutritional value, and based on the obtained results, we conclude that LT conditions result in more nutritious broccoli microgreens than HT.

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What if the cold days return? Epigenetic mechanisms in plants to cold tolerance

Abstract: Main conclusionThe epigenetic could be an important, but seldom assessed, mechanisms in plants inhabiting cold ecosystems. Thus, this review could help to fill a gap in the current literature.

Cited by 13 publications

References 107 publications

Coronatine Enhances Chilling Tolerance of Tomato Plants by Inducing Chilling-Related Epigenetic Adaptations and Transcriptional Reprogramming

Coronatine Enhances Chilling Tolerance of Tomato Plants by Inducing Chilling-Related Epigenetic Adaptations and Transcriptional Reprogramming

Active DNA demethylation in plants: 20 years of discovery and beyond

Adjustments of the Phytochemical Profile of Broccoli to Low and High Growing Temperatures: Implications for the Bioactivity of Its Extracts

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