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  1. 雑誌掲載論文

The basic leucine zipper transcription factor OsbZIP83 and the glutaredoxins OsGRX6 and OsGRX9 facilitate rice iron utilization under the control of OsHRZ ubiquitin ligases

https://ishikawa-pu.repo.nii.ac.jp/records/2000087
https://ishikawa-pu.repo.nii.ac.jp/records/2000087
b3a80499-5410-4c86-a1a8-4404404362f5
名前 / ファイル ライセンス アクション
2022_kobayashi_The 本文(pdf) (2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2025-06-12
タイトル
タイトル The basic leucine zipper transcription factor OsbZIP83 and the glutaredoxins OsGRX6 and OsGRX9 facilitate rice iron utilization under the control of OsHRZ ubiquitin ligases
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 basic leucine zipper transcription factor
キーワード
言語 en
主題Scheme Other
主題 gene expression
キーワード
言語 en
主題Scheme Other
主題 glutaredoxin
キーワード
言語 en
主題Scheme Other
主題 iron deficiency response
キーワード
言語 en
主題Scheme Other
主題 iron sensing
キーワード
言語 en
主題Scheme Other
主題 rice (Oryza sativa)
キーワード
言語 en
主題Scheme Other
主題 protein-level regulation
キーワード
言語 en
主題Scheme Other
主題 transcriptional regulation
キーワード
言語 en
主題Scheme Other
主題 ubiquitin ligase
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 KOBAYASHI,Takanori

× KOBAYASHI,Takanori

WEKO 216
e-Rad_Researcher 70590206

en KOBAYASHI,Takanori
KOBAYASHI,Takanori

ja-Kana コバヤシ, タカノリ

Search repository
SHINKAWA,Haruka

× SHINKAWA,Haruka

e-Rad_Researcher 40937489

en SHINKAWA,Haruka
SHINKAWA,Haruka

ja-Kana シンカワ,ハルカ

Search repository
NAGANO,Atsushi J

× NAGANO,Atsushi J

e-Rad_Researcher 619877

en NAGANO,Atsushi J
NAGANO,Atsushi J

ja-Kana ナガノ,アツシ

Search repository
NISHIZAWA,Naoko K

× NISHIZAWA,Naoko K

WEKO 219
e-Rad_Researcher 70156066

en NISHIZAWA,Naoko K
NISHIZAWA, Naoko K

ja-Kana ニシザワ, ナオコ

Search repository
抄録
内容記述タイプ Abstract
内容記述 Under low iron availability, plants induce the expression of various genes for iron uptake and translocation. Function of the rice ubiquitin ligases OsHRZ1 and OsHRZ2 causes overall repression of these iron-related genes at the transcript level, but their protein-level regulation is unclear. We conducted a proteome analysis to identify key regulators whose abundance was regulated by OsHRZs at the protein level. In response to iron deficiency or OsHRZ knockdown, many genes showed differential regulation between the transcript and protein levels, including the TGA-type basic leucine zipper transcription factor OsbZIP83. We also identified two glutaredoxins, OsGRX6 and OsGRX9, as OsHRZ-interacting proteins in yeast and plant cells. OsGRX6 also interacted with OsbZIP83. In vitro degradation assay suggested that OsbZIP83, OsGRX6 and OsGRX9 proteins are subjected to 26S proteasome- and OsHRZ-dependent degradation. Proteome analysis and in vitro degradation assay also suggested that OsbZIP83 protein was preferentially degraded under iron-deficient conditions in rice roots. Transgenic rice lines overexpressing OsGRX9 and OsbZIP83 showed improved tolerance to iron deficiency. Expression of iron-related genes was affected in the OsGRX9 and OsGRX6 knockdown lines, suggesting disturbed iron utilization and signaling. OsbZIP83 overexpression lines showed enhanced expression of OsYSL2 and OsNAS3, which are involved in internal iron translocation, in addition to OsGRX9 and genes related to phytoalexin biosynthesis and the salicylic acid pathway. The results suggest that OsbZIP83, OsGRX6, and OsGRX9 facilitate iron utilization downstream of the OsHRZ pathway.
言語 en
bibliographic_information en : The Plant Journal

巻 110, 号 6, p. 1731-3750
出版者
出版者 Wiley
言語 en
item_10001_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0960-7412
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
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