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Epigenetics in Plants of Agronomic Importance: Fundamentals and Applications
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SYSNO ASEP 0519555 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Epigenetic Mechanisms of Abiotic Stress Response and Memory in Plants Author(s) Mozgová, Iva (MBU-M)
Mikulski, P. (GB)
Pečinka, Aleš (UEB-Q) ORCID, RID
Farrona, S. (IE)Source Title Epigenetics in Plants of Agronomic Importance: Fundamentals and Applications, Transcriptional Regulation and Chromatin Remodelling in Plants. - Cham : Springer Nature, 2019 / Alvarez-Venegas R. ; De-la-Pena C. ; Casas-Mollano J.A. - ISBN 978-3-030-14759-4 Pages s. 1-64 Number of pages 64 s. Number of pages 415 Publication form Print - P Language eng - English Country CH - Switzerland Keywords Abiotic stress ; Memory ; Chromatin Subject RIV EE - Microbiology, Virology OECD category Microbiology Subject RIV - cooperation Institute of Experimental Botany
Institute of Experimental Botany - BotanicsR&D Projects LO1416 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GJ16-08423Y GA ČR - Czech Science Foundation (CSF) LTC18026 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Fellowship J. E. Purkyně GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) Institutional support MBU-M - RVO:61388971 ; UEB-Q - RVO:61389030 EID SCOPUS 85074650380 DOI 10.1007/978-3-030-14760-0_1 Annotation Being sessile organisms, plants are exposed to multiple stimuli without possibility for escape. Therefore, plants have evolved to be able to adapt their developmental and physiological responses to the surrounding environment. Some environmental stresses will rarely occur during the life of the plant, but others, such as seasonal drought or heat, can be recurrent. Therefore, plant responses to these stresses can be transient to provide plants with the required tools to acclimate and survive, whereas others may promote a state that we will refer to as “memory” throughout the chapter, which predisposes the plant for a more efficient stress response upon next encounter of stress. The possibility of transferring this memory to the next generation has been also proposed, which implies a lack of resetting of the priming memory during sexual reproduction. Different epigenetic and chromatin-related modifications such as DNA methylation, histone modifications, and chromatin remodeling have been associated with the memory to both biotic and abiotic stresses. This chapter reviews how and which epigenetic processes are involved in remembering a past abiotic stress event and also forgetting it. Contradictory arguments concerning transgenerational memory and its implications in phenotypic variation are critically discussed. In addition, the stability of epigenetic modifications during asexual propagation and its impact on clonally propagated plants is addressed. Finally, we mention possible agricultural implications of the epigenetic mechanisms involved in plant memory and propose future applications for breeding of epigenetically modified crops considering new challenges arising from climate change. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2020
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