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  1. 雑誌掲載論文

The phytosiderophore analogue proline-2'-deoxymugineic acid is more efficient than conventional chelators for improving iron nutrition in maize

https://ishikawa-pu.repo.nii.ac.jp/records/2000088
https://ishikawa-pu.repo.nii.ac.jp/records/2000088
d1693cdd-1ca7-4c3f-8c71-11dff309068e
名前 / ファイル ライセンス アクション
2021_kobayashi_soil 本文(pdf) (5.8 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2025-06-13
タイトル
タイトル The phytosiderophore analogue proline-2'-deoxymugineic acid is more efficient than conventional chelators for improving iron nutrition in maize
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 Chelation
キーワード
言語 en
主題Scheme Other
主題 iron fertilizer
キーワード
言語 en
主題Scheme Other
主題 maize
キーワード
言語 en
主題Scheme Other
主題 mugineic acid family phytosiderophores
キーワード
言語 en
主題Scheme Other
主題 proline- 2′-deoxymugineic acid
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 SUZUKI,Motofumi

× SUZUKI,Motofumi

en SUZUKI,Motofumi
SUZUKI,Motofumi

ja-Kana スズキ,モトフミ

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SUZUKI,Yutaro

× SUZUKI,Yutaro

en SUZUKI,Yutaro
SUZUKI,Yutaro

ja-Kana スズキ,ユウタロウ

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HOSODA,Kensuke

× HOSODA,Kensuke

en HOSODA,Kensuke
HOSODA,Kensuke

ja-Kana ホソダ,ケンスケ

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NAMBA,Kosuke

× NAMBA,Kosuke

e-Rad_Researcher 50414123

en NAMBA,Kosuke
NAMBA,Kosuke

ja-Kana ナンバ,コウスケ

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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

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抄録
内容記述タイプ Abstract
内容記述 Iron (Fe) is an essential nutrient but has poor bioavailability because of its low solubility under conditions of high pH, such as calcareous soils. Previously, we synthesized an analogue of the natural Fe(III) chelator 2′-deoxymugineic acid secreted by graminaceous plants for efficient Fe uptake, designated as proline-2′- deoxymugineic acid (PDMA). Soil application of Fe(III)-PDMA ameliorated symptoms of Fe deficiency in rice. In the present study, we explored the potential of PDMA as Fe nutrition supplement in maize, a major graminaceous crop, and rice for comparison. In calcareous soil pots, Fe deficiency chlorosis of maize was efficiently recovered by a single application of Fe(III)-PDMA. In contrast, maize plants treated with conventional Fe(III)-chelator complexes, such as Fe(III)-ethylenediaminetetraacetic acid (EDTA) or Fe(III)-N,N′-di(2-hydroxybenzyl)ethylenediamine-N,N′-diacetic acid monohydrochloride (HBED), showed little or no recovery. Similarly, rice Fe chlorosis in calcareous soil pots was efficiently recovered by a single application of Fe(III)-PDMA, but not by other conventional Fe(III)-chelator complexes. Application of Fe(III)-PDMA was also effective in ameliorating Fe deficiency chlorosis in hydroponically grown maize seedlings; other Fe(III)-chelator complexes showed minimal or no efficacy. Addition of low concentrations of metal-free PDMA recovered Fe chlorosis of maize or rice in the presence of Fe(III)-EDTA, suggesting possible ligand exchange from EDTA to PDMA for subsequent Fe(III)-PDMA uptake by ZmYS1 and OsYSL15 transporters. Similar effects were observed with Fe(III)-HBED, which has a higher stability constant, but to a lesser extent than Fe(III)-EDTA, suggesting that ligand exchange from HBED to PDMA might be less prone to occur than for chelators with moderate stability constants, such as EDTA. Ferric-chelate reductase assays of maize roots showed substantial reduction of Fe(III)-PDMA, but this reduction activity was not increased under Fe-deficient condition. These results suggested that PDMA is an efficient reagent for improvement of Fe nutrition in graminaceous crops, including maize, because of suitability of Fe(III)-PDMA as a substrate for chelation-based Fe uptake systems.
言語 en
bibliographic_information en : Soil Science and Plant Nutrition

巻 70, 号 5月6日, p. 435-446, 発行日 2024
出版者
出版者 Tailor & Francis
言語 en
item_10001_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0038-0768
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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