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BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans

In this paper we analyzed β-aminobutyric acid (BABA)-primed epigenetic adjustment of potato cv. “Sarpo Mira” to Phytophthora infestans. The first stress-free generation of the potato genotype obtained from BABA-primed parent plants via tubers and seeds showed pronounced resistance to the pathogen, w...

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Autores principales: Meller, Barbara, Kuźnicki, Daniel, Arasimowicz-Jelonek, Magdalena, Deckert, Joanna, Floryszak-Wieczorek, Jolanta
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135045/
https://www.ncbi.nlm.nih.gov/pubmed/30233606
http://dx.doi.org/10.3389/fpls.2018.01228
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author Meller, Barbara
Kuźnicki, Daniel
Arasimowicz-Jelonek, Magdalena
Deckert, Joanna
Floryszak-Wieczorek, Jolanta
author_facet Meller, Barbara
Kuźnicki, Daniel
Arasimowicz-Jelonek, Magdalena
Deckert, Joanna
Floryszak-Wieczorek, Jolanta
author_sort Meller, Barbara
collection PubMed
description In this paper we analyzed β-aminobutyric acid (BABA)-primed epigenetic adjustment of potato cv. “Sarpo Mira” to Phytophthora infestans. The first stress-free generation of the potato genotype obtained from BABA-primed parent plants via tubers and seeds showed pronounced resistance to the pathogen, which was tuned with the transcriptional memory of SA-responsive genes. During the early priming phase before the triggering stress, we found robust bistable deposition of histone marks (H3K4me2 and H3K27me3) on the NPR1 (Non-expressor of PR genes) and the SNI1 gene (Suppressor of NPR1, Inducible), in which transcription antagonized silencing. Switchable chromatin states of these adverse systemic acquired resistance (SAR) regulators probably reprogrammed responsiveness of the PR1 and PR2 genes and contributed to stress imprinting. The elevated levels of heritable H3K4me2 tag in the absence of transcription on SA-dependent genes in BABA-primed (F(0)) and its vegetative and generative progeny (F(1)) before pathogen challenge provided evidence for the epigenetic mark for intergenerational memory in potato. Moreover, our study revealed that histone acetylation was not critical for maintaining BABA-primed defense information until the plants were triggered with the virulent pathogen when rapid and boosted PRs gene expression probably required histone acetyltransferase (HAT) activity both in F(0) and F(1) progeny.
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spelling pubmed-61350452018-09-19 BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans Meller, Barbara Kuźnicki, Daniel Arasimowicz-Jelonek, Magdalena Deckert, Joanna Floryszak-Wieczorek, Jolanta Front Plant Sci Plant Science In this paper we analyzed β-aminobutyric acid (BABA)-primed epigenetic adjustment of potato cv. “Sarpo Mira” to Phytophthora infestans. The first stress-free generation of the potato genotype obtained from BABA-primed parent plants via tubers and seeds showed pronounced resistance to the pathogen, which was tuned with the transcriptional memory of SA-responsive genes. During the early priming phase before the triggering stress, we found robust bistable deposition of histone marks (H3K4me2 and H3K27me3) on the NPR1 (Non-expressor of PR genes) and the SNI1 gene (Suppressor of NPR1, Inducible), in which transcription antagonized silencing. Switchable chromatin states of these adverse systemic acquired resistance (SAR) regulators probably reprogrammed responsiveness of the PR1 and PR2 genes and contributed to stress imprinting. The elevated levels of heritable H3K4me2 tag in the absence of transcription on SA-dependent genes in BABA-primed (F(0)) and its vegetative and generative progeny (F(1)) before pathogen challenge provided evidence for the epigenetic mark for intergenerational memory in potato. Moreover, our study revealed that histone acetylation was not critical for maintaining BABA-primed defense information until the plants were triggered with the virulent pathogen when rapid and boosted PRs gene expression probably required histone acetyltransferase (HAT) activity both in F(0) and F(1) progeny. Frontiers Media S.A. 2018-08-29 /pmc/articles/PMC6135045/ /pubmed/30233606 http://dx.doi.org/10.3389/fpls.2018.01228 Text en Copyright © 2018 Meller, Kuźnicki, Arasimowicz-Jelonek, Deckert and Floryszak-Wieczorek. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Meller, Barbara
Kuźnicki, Daniel
Arasimowicz-Jelonek, Magdalena
Deckert, Joanna
Floryszak-Wieczorek, Jolanta
BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title_full BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title_fullStr BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title_full_unstemmed BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title_short BABA-Primed Histone Modifications in Potato for Intergenerational Resistance to Phytophthora infestans
title_sort baba-primed histone modifications in potato for intergenerational resistance to phytophthora infestans
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135045/
https://www.ncbi.nlm.nih.gov/pubmed/30233606
http://dx.doi.org/10.3389/fpls.2018.01228
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