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20240729232429.0 |
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240411s2024 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1111/nph.19756
|2 doi
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|a pubmed24n1485.xml
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|a (DE-627)NLM370893484
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|a (NLM)38600023
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Yamaji, Naoki
|e verfasserin
|4 aut
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| 245 |
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|a An oligo peptide transporter family member, OsOPT7, mediates xylem unloading of Fe for its preferential distribution in rice
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 23.05.2024
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|a Date Revised 29.07.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors New Phytologist © 2024 New Phytologist Foundation.
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|a Iron (Fe) needs to be delivered to different organs and tissues of above-ground parts for playing its multiple physiological functions once it is taken up by the roots. However, the mechanisms underlying Fe distribution are poorly understood. We functionally characterized OsOPT7, a member of oligo peptide transporter family in terms of expression patterns, localization, transport activity and phenotypic analysis of knockdown lines. OsOPT7 was highly expressed in the nodes, especially in the uppermost node I, and its expression was upregulated by Fe-deficiency. OsOPT7 transports ferrous iron into the cells coupled with proton. Immunostaining revealed that OsOPT7 is mainly localized in the xylem parenchyma cells of the enlarged vascular bundles in the nodes and vascular tissues in the leaves. Knockdown of OsOPT7 did not affect the Fe uptake, but altered Fe distribution; less Fe was distributed to the new leaf, upper nodes and developing panicle, but more Fe was distributed to the old leaves. Furthermore, knockdown of OsOPT7 also resulted in less Fe distribution to the leaf sheath, but more Fe to the leaf blade. Taken together, OsOPT7 is involved in the xylem unloading of Fe for both long-distance distribution to the developing organs and local distribution within the leaf in rice
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|a Journal Article
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|a distribution
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|a iron
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4 |
|a node
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|a oligopeptide transporter
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| 650 |
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4 |
|a rice
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| 650 |
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4 |
|a xylem unloading
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| 650 |
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|a Iron
|2 NLM
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| 650 |
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7 |
|a E1UOL152H7
|2 NLM
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| 650 |
|
7 |
|a Membrane Transport Proteins
|2 NLM
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| 650 |
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7 |
|a peptide permease
|2 NLM
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| 650 |
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7 |
|a 97599-47-8
|2 NLM
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| 650 |
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7 |
|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Yoshioka, Yuma
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Sheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Miyaji, Takaaki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sasaki, Akimasa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Jian Feng
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 242(2024), 6 vom: 26. Juni, Seite 2620-2634
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:242
|g year:2024
|g number:6
|g day:26
|g month:06
|g pages:2620-2634
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| 856 |
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|u http://dx.doi.org/10.1111/nph.19756
|3 Volltext
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|d 242
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