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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2019.04.022
|2 doi
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|a pubmed24n0993.xml
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|a (DE-627)NLM298204576
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|a (NLM)31203897
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|a (PII)S0168-9452(18)31555-3
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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 Wongkaew, Arunee
|e verfasserin
|4 aut
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| 245 |
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|a Phloem-specific overexpression of AtOPT6 in Arabidopsis enhances Zn transport into shoots
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|c 2019
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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
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|2 rdacarrier
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|a Date Completed 13.08.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019 Elsevier B.V. All rights reserved.
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|a The Arabidopsis oligopeptide transporter AtOPT6 is membrane transport protein that mediated transport of glutathione in both the reduced (GSH) and oxidized (GSSG) forms. In this study, the role of AtOPT6 in glutathione distribution throughout the plant was investigated. We found that transgenic Arabidopsis overexpressing AtOPT6 under the control of a phloem-specific promoter of sucrose-proton symporter 2 (pSUC2), remarkably increased AtOPT6 transcript levels, ranging from 30- to 40-fold in shoots and 6- to 10-fold in roots, relative to the wild type. AtOPT6-overexpressing lines could elevate the foliar glutathione content; however, glutathione content in the phloem did not change. We observed that the ratio of shoot glutathione content to total glutathione content increased in AtOPT6-overexpressing lines, but not in transgenic Arabidopsis with elevated foliar GSH synthesis. These results indicate the possibility that loading and unloading of glutathione in phloem tissues are enhanced in AtOPT6-overexpressing lines under the control of pSUC2. The results of heavy metal analysis revealed that transgenic Arabidopsis overexpressing AtOPT6 under the control of pSUC2 could promote the transport of Zn into shoots as effectively as transgenic Arabidopsis with elevated foliar GSH synthesis, or wild-type plants with exogenous foliar application of GSH
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|a Journal Article
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|a Arabidopsis thaliana
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|a Glutathione
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|a Oligopeptide transporter
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|a Phloem
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|a Shoot Zn content
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|a Zn
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|a Amino Acids
|2 NLM
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|a Arabidopsis Proteins
|2 NLM
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|a OPT6 protein, Arabidopsis
|2 NLM
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| 650 |
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|a Symporters
|2 NLM
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| 650 |
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|a Glutathione
|2 NLM
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| 650 |
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|a GAN16C9B8O
|2 NLM
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| 650 |
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|a Zinc
|2 NLM
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| 650 |
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|a J41CSQ7QDS
|2 NLM
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| 700 |
1 |
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|a Nakamura, Shin-Ichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sekimoto, Hitoshi
|e verfasserin
|4 aut
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| 700 |
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|a Yokoyama, Tadashi
|e verfasserin
|4 aut
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|a Ohkama-Ohtsu, Naoko
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 285(2019) vom: 17. Aug., Seite 91-98
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
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|g volume:285
|g year:2019
|g day:17
|g month:08
|g pages:91-98
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|u http://dx.doi.org/10.1016/j.plantsci.2019.04.022
|3 Volltext
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