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https://hdl.handle.net/20.500.14094/90008226
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2024-04-27
10:04 集計
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90008226 (fulltext)
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1.87 MB
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メタデータID
90008226
アクセス権
open access
出版タイプ
Accepted Manuscript
タイトル
Global epigenetic changes of histone modification under environmental stresses in rice root
著者
Polosoro, Aqwin ; Enggarini, Wening ; Ohmido, Nobuko
著者名
Polosoro, Aqwin
著者名
Enggarini, Wening
著者ID
A0558
研究者ID
1000030343263
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=489af0c45732b381520e17560c007669
著者名
Ohmido, Nobuko
近江戸, 伸子
オオミド, ノブコ
所属機関名
人間発達環境学研究科
収録物名
Chromosome Research
巻(号)
27(4)
ページ
287-298
出版者
Springer
刊行日
2019-12
公開日
2021-04-30
抄録
Abiotic stresses are non-living factors with negative morphological and physiological effects on living organisms. Substantial evidence exists that gene expression changes during plant cell growth are regulated by chromatin reconfiguration and histone modification. Several types of histone modifications are dramatically transformed in stress-responsive gene regions under drought stress conditions. Environmental stresses also cause the root apical meristem (RAM) region to decelerate root growth. In this study, we investigated how quantitative changes in epigenetic markers in this region influence rice morphology and physiology. Both iron and salinity treatments changed the epigenetic landscape from euchromatic to heterochromatic according to heterochromatin (H3K9me2) and euchromatin (H3K4me) markers, especially in the proximal meristem region. Moreover, supplementation with external abscisic acid (ABA) was able to mimic the effect of environmental stresses on global epigenetic changes. In contrast, the addition of external auxin (IAA) to rice under saline conditions affected heterochromatin formation without influencing euchromatin transformation. Chromatin dynamics is therefore believed to be directly connected to plant growth regulator signaling. We discuss insights into the role of plant growth regulators: ABA and IAA, peroxide signaling, and their effects on the global epigenetic change of histone modification under abiotic stresses.
キーワード
ABA
IAA
Root apical meristem
Iron stress
Salinity stress
H3K9me2
H3K4me2
カテゴリ
人間発達環境学研究科
学術雑誌論文
権利
© Springer Nature B.V. 2019. This is a post-peer-review, pre-copyedit version of an article published in Chromosome Research. The final authenticated version is available online at: https://doi.org/10.1007/s10577-019-09611-3
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資源タイプ
journal article
言語
English (英語)
ISSN
0967-3849
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eISSN
1573-6849
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NCID
AA10992704
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関連情報
DOI
https://doi.org/10.1007/s10577-019-09611-3
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