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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1111/j.1469-8137.2008.02376.x
|2 doi
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|a pubmed24n0592.xml
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Xing, J P
|e verfasserin
|4 aut
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|a Variation in root-to-shoot translocation of cadmium and zinc among different accessions of the hyperaccumulators Thlaspi caerulescens and Thlaspi praecox
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|c 2008
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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 08.05.2008
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|a Date Revised 20.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Efficient root-to-shoot translocation is a key trait of the zinc/cadmium hyperaccumulators Thlaspi caerulescens and Thlaspi praecox, but the extent of variation among different accessions and the underlying mechanisms remain unclear. Root-to-shoot translocation of Cd and Zn and apoplastic bypass flow were determined in 10 accessions of T. caerulescens and one of T. praecox, using radiolabels (109)Cd and (65)Zn. Two contrasting accessions (Pr and Ga) of T. caerulescens were further characterized for TcHMA4 expression and metal compartmentation in roots. Root-to-shoot translocation of (109)Cd and (65)Zn after 1 d exposure varied 4.4 to 5-fold among the 11 accessions, with a significant correlation between the two metals, but no significant correlation with uptake or the apoplastic bypass flow. The F(2) progeny from a cross between accessions from Prayon, Belgium (Pr) and Ganges, France (Ga) showed a continuous phenotype pattern and transgression. There was no significant difference in the TcHMA4 expression in roots between Pr and Ga. Compartmentation analysis showed a higher percentage of (109)Cd sequestered in the root vacuoles of Ga than Pr, the former being less efficient in translocation than the latter. Substantial natural variation exists in the root-to-shoot translocation of Cd and Zn, and root vacuolar sequestration may be an important factor related to this variation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Plant Proteins
|2 NLM
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|a Cadmium
|2 NLM
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| 650 |
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|a 00BH33GNGH
|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 |
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|a Jiang, R F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ueno, D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, J F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schat, H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a McGrath, S P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, F J
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 178(2008), 2 vom: 15., Seite 315-325
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:178
|g year:2008
|g number:2
|g day:15
|g pages:315-325
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|u http://dx.doi.org/10.1111/j.1469-8137.2008.02376.x
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