Epigenetic Mechanisms of Abiotic Stress Response and Memory in Plants

Mozgová, Iva; Mikulski, Paweł; Pečinka, Aleš; Farrona, Sara

doi:10.1007/978-3-030-14760-0_1

Cited by 40 publications

(51 citation statements)

References 430 publications

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“…Bud mutations often occur under stresses such as drought, pathogen infection, extreme weather and climate conditions, limited nutrient availability, human activities, and natural or artificial selection and are a result of adaptation to abnormal external environmental conditions [58,59]. The contribution of epigenetic modification to the ability of plants to adapt to various stresses has been well demonstrated [26,22]. Therefore, it can be theoretically deduced that a certain mutation is associated with epigenetic variation to some extent.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, mutants that survive in adverse environments and even present excellent phenotypes are considered to have good characteristics for adaption. Epigenetic regulation mediated by DNA methylation is considered as one of the important mechanisms in plant adaptive procedure [14,22]. Studying the molecular mechanism of bud mutation at the DNA level is thus of great significance.…”

Section: Introductionmentioning

confidence: 99%

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The assessment of epigenetic diversity, differentiation, and structure in the ‘Fuji’ mutation line implicates roles of epigenetic modification in the occurrence of different mutant groups as well as spontaneous mutants

Liu

et al. 2020

PLoS ONE

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The 'Fuji' line includes many varieties with a similar genetic background and consistent inducement factors with epigenetic occurrence, thus it may be considered an ideal candidate for epigenetic research. In this study, 91 bud mutations of 'Fuji' apple were used as the test materials. Using the genetic variation within 'Fuji' as the control, the characteristics of epigenetic variation at different levels in both varieties and mutant groups were examined. The results showed that: (1) the global genomic DNA methylation level of the 91 bud mutants of 'Fuji' ranged from 29.120%-45.084%, with an average of 35.910%. Internal cytosine methylation was the main DNA methylation pattern. Regarding the variation of methylation patterns of 'Fuji' mutants, the vast majority of loci maintained the original methylation pattern existed in 'Fuji'. CHG methylation variation was the main type of variation; (2) the variation in methylation patterns between the mutant groups was greater than that of methylation levels. Among these patterns, the variation in CHG methylation patterns (including CHG hypermethylation and CHG demethylation) was expected to be dominant. The observed variation in methylation levels was more important in the Color mutant group; however, the variation in methylation patterns was more obvious in both the early maturation and Spur mutant groups. Moreover, the range of variation in the Early-maturation group was much wider than that in the Spur mutant group; (3) epigenetic diversity and genetic diversity were both low between the mutant groups. In the 'Fuji' mutant groups, there was few correlation between genetic and epigenetic variation, and epigenetic differentiation resulted in more loci with moderate or greater differentiation; (4) the purifying selection seemed to play a major role in the differentiation of different groups of 'Fuji' mutants (65.618%), but epigenetic diversity selection still occurred at nearly 35% of loci. Sixteen epigenetic outlier loci were detected.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The assessment of epigenetic diversity, differentiation, and structure in the ‘Fuji’ mutation line implicates roles of epigenetic modification in the occurrence of different mutant groups as well as spontaneous mutants

Liu

et al. 2020

PLoS ONE

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“…Studies have proposed several molecular mechanisms underpinning stress memory. One mechanism was proposed to be sustained modulations of key signaling metabolites or transcription factors, which could initiate cascaded effects on downstream genes (Mozgova et al, 2019). For instance, recurring heat stresses induced the sustained expression of miR156, which regulated the transcriptional factor, Squamosa Promoter Binding Protein-Like (SPL), in A. thaliana, affecting endogenous timing of leaf initiation and developmental transitions (Stief et al, 2014).…”

Section: Cold Stress Memory Induced By Recurrent Stressesmentioning

confidence: 99%

“…The acquisition of stress memory has several benefits, such as effectively resisting recurring environmental stresses and remaining homeostasis status (Ding et al, 2013;Avramova, 2015;Virlouvet and Fromm, 2015;Mozgova et al, 2019). Studies have approved that cells after prestressing were considerably more tolerant than non-prestressed cells to defend oxidative stresses in later challenges (Wiegant et al, 2011).…”

Section: The Effects Of Cold Stress Memorymentioning

confidence: 99%

Stress Memory of Recurrent Environmental Challenges in Marine Invasive Species: Ciona robusta as a Case Study

Huang

Zhan

2020

Front. Physiol.

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“…Simultaneously, studying the interplay between different regulators with the help of emerging technologies, such as the development of imaging and imageprocessing solutions that take into account the challenges of plant systems (Dumur et al, 2019) and other cell-specific techniques, will certainly yield important new findings. Finally, while most work presented at the meeting used Arabidopsis as a model system, the fundamental mechanisms identified might in the future be applied to crop species by, for example, exploiting natural epigenetic diversity in plant breeding or induced epigenetic variation involved in stress priming and memory (Springer and Schmitz, 2017;Mozgová et al, 2019;Forestan et al, 2019). We expect to see some of these questions addressed in the future and exciting new data on chromatin regulation in model and crop plants to be presented in forthcoming EWPCs.…”

Section: Discussionmentioning

confidence: 98%

Looking At the Past and Heading to the Future: Meeting Summary of the 6th European Workshop on Plant Chromatin 2019 in Cologne, Germany

et al. 2020

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In June 2019, more than a hundred plant researchers met in Cologne, Germany, for the 6 th European Workshop on Plant Chromatin (EWPC). This conference brought together a highly dynamic community of researchers with the common aim to understand how chromatin organization controls gene expression, development, and plant responses to the environment. New evidence showing how epigenetic states are set, perpetuated, and inherited were presented, and novel data related to the three-dimensional organization of chromatin within the nucleus were discussed. At the level of the nucleosome, its composition by different histone variants and their specialized histone deposition complexes were addressed as well as the mechanisms involved in histone posttranslational modifications and their role in gene expression. The keynote lecture on plant DNA methylation by Julie Law (SALK Institute) and the tribute session to Lars Hennig, honoring the memory of one of the founders of the EWPC who contributed to promote the plant chromatin and epigenetic field in Europe, added a very special note to this gathering. In this perspective article we summarize some of the most outstanding data and advances on plant chromatin research presented at this workshop.

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Epigenetic Mechanisms of Abiotic Stress Response and Memory in Plants

Cited by 40 publications

References 430 publications

The assessment of epigenetic diversity, differentiation, and structure in the ‘Fuji’ mutation line implicates roles of epigenetic modification in the occurrence of different mutant groups as well as spontaneous mutants

The assessment of epigenetic diversity, differentiation, and structure in the ‘Fuji’ mutation line implicates roles of epigenetic modification in the occurrence of different mutant groups as well as spontaneous mutants

Stress Memory of Recurrent Environmental Challenges in Marine Invasive Species: Ciona robusta as a Case Study

Looking At the Past and Heading to the Future: Meeting Summary of the 6th European Workshop on Plant Chromatin 2019 in Cologne, Germany

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