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Rice plants take up iron as an Fe$$^{3+}$$-phytosiderophore and as Fe$$^{2+}$$

Ishimaru, Yasuhiro*; Suzuki, Motofumi*; Tsukamoto, Takashi*; Suzuki, Kazumasa*; Nakazono, Mikio*; Kobayashi, Takanori*; Wada, Yasuaki*; Watanabe, Satoshi; Matsuhashi, Shimpei; Takahashi, Michiko*; Nakanishi, Hiromi*; Mori, Satoshi*; Nishizawa, Naoko*

${it OsIRT2}$ gean was isolated from rice, which is highly homologous to ${it OsIRT1}$. Real-time PCR analysis revealed that ${it OsIRT1}$ and ${it OsIRT2}$ are expressed predominantly in roots, and these transporters are induced by low-Fe condition. Analysis using the positron-emitting tracer imaging system showed that rice plants are able to take up both an Fe$$^{3+}$$-phytosiderophore and Fe$$^{2+}$$. This result indicates that, in addition to absorbing an Fe$$^{3+}$$-phytosiderophore, rice possesses a novel Fe-uptake system that directly absorbs the Fe$$^{2+}$$, a strategy that is advantageous for growth in submerged conditions.

Language

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English

Journal

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Plant Journal

Volume

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45

Number

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3

Pages

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p.335 - 346

Publication Year/Month

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2006/02

Meeting title

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Held date

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Location (city)

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Location (country)

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Patent information

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PDF

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Paper URL

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https://doi.org/10.1111/j.1365-313X.2005.02624.x

DOI for research data

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Keywords

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no keyword

Research Facility

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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東京大学

Accesses

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- Accesses

InCites™

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Percentile:99.64

Category:Plant Sciences

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