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  1. 原著論文

Magnesium uptake characteristics in Arabidopsis revealed by 28Mg tracer studies

https://repo.qst.go.jp/records/49139
https://repo.qst.go.jp/records/49139
a207f197-10e1-45e3-8e2e-f9569d39ff66
Item type 学術雑誌論文 / Journal Article(1)
公開日 2018-06-25
タイトル
タイトル Magnesium uptake characteristics in Arabidopsis revealed by 28Mg tracer studies
言語
言語 eng
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
アクセス権
アクセス権 metadata only access
アクセス権URI http://purl.org/coar/access_right/c_14cb
著者 Ogura, Takaaki

× Ogura, Takaaki

WEKO 948973

Ogura, Takaaki

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I. Kobayashi, Natsuko

× I. Kobayashi, Natsuko

WEKO 948974

I. Kobayashi, Natsuko

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Suzuki, Hisashi

× Suzuki, Hisashi

WEKO 948975

Suzuki, Hisashi

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Iwata, Ren

× Iwata, Ren

WEKO 948976

Iwata, Ren

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M. Nakanishi, Tomoko

× M. Nakanishi, Tomoko

WEKO 948977

M. Nakanishi, Tomoko

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Hisashi, Suzuki

× Hisashi, Suzuki

WEKO 948978

en Hisashi, Suzuki

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Ren, Iwata

× Ren, Iwata

WEKO 948979

en Ren, Iwata

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内容記述タイプ Abstract
内容記述 Magnesium (Mg2+) absorption and the mechanism regulating its activity have not been clarified yet. To address these issues, it is necessary to reveal the characteristics of Mg2+ uptake in roots. Therefore, we first investigated the Mg2+ uptake characteristics in roots of 1-week-old Arabidopsis plants using 28Mg. The Mg2+ uptake system in roots was up-regulated within 1 h in response to the low Mg2+ condition. This induction was inhibited in Arabidopsis “mitochondrial RNA splicing 2/magnesium transport” mutants atmrs2-4/atmgt6 and atmrs2-7/atmgt7, while the expression of AtMRS2-4/AtMGT6 and AtMRS2-7/AtMGT7 genes in the Arabidopsis wild-type was not responsive to Mg2+ conditions. In addition, the Mg deficiency-induced Mg2+ uptake system was shut-down within 5 min when Mg2+ was resupplied to the environment. An inhibition study showed that the constitutive mechanism functioning in Mg2+ uptake under Mg2+ sufficient conditions was sensitive to a number of divalent and trivalent cations, particularly Gd3+ and Fe2+, but not to K+.
書誌情報 Planta

巻 248, 号 3, p. 745-750, 発行日 2018-06
出版者
出版者 Springer
ISSN
収録物識別子タイプ ISSN
収録物識別子 0032-0935
DOI
識別子タイプ DOI
関連識別子 10.1007/s00425-018-2936-4
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