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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erx067
|2 doi
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|a pubmed24n1334.xml
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|a (DE-627)NLM270943188
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|a (NLM)28407076
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Wigoda, Noa
|e verfasserin
|4 aut
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| 245 |
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|a Differential gene expression and transport functionality in the bundle sheath versus mesophyll - a potential role in leaf mineral homeostasis
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 22.02.2018
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|a Date Revised 18.03.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author 2017. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Under fluctuating ambient conditions, the ability of plants to maintain hydromineral homeostasis requires the tight control of long distance transport. This includes the control of radial transport within leaves, from veins to mesophyll. The bundle sheath is a structure that tightly wraps around leaf vasculature. It has been suggested to act as a selective barrier in the context of radial transport. This suggestion is based on recent physiological transport assays of bundle sheath cells (BSCs), as well as the anatomy of these cells.We hypothesized that the unique transport functionality of BSCs is apparent in their transcriptome. To test this, we compared the transcriptomes of individually hand-picked protoplasts of GFP-labeled BSCs and non-labeled mesophyll cells (MCs) from the leaves of Arabidopsis thaliana. Of the 90 genes differentially expressed between BSCs and MCs, 45% are membrane related and 20% transport related, a prominent example being the proton pump AHA2. Electrophysiological assays showed that the major AKT2-like membrane K+ conductances of BSCs and MCs had different voltage dependency ranges. Taken together, these differences may cause simultaneous but oppositely directed transmembrane K+ fluxes in BSCs and MCs, in otherwise similar conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Arabidopsis thaliana
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|a C3 plant
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|a bundle sheath
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|a membrane potential
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|a membrane transport
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|a mesophyll
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|a patch clamp
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|a ratiometric fluorescent probe
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|a transcriptome
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|a transporters
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|a Arabidopsis Proteins
|2 NLM
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| 650 |
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|a Minerals
|2 NLM
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| 700 |
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|a Pasmanik-Chor, Metsada
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Tianyuan
|e verfasserin
|4 aut
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| 700 |
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|a Yu, Ling
|e verfasserin
|4 aut
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|a Moshelion, Menachem
|e verfasserin
|4 aut
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| 700 |
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|a Moran, Nava
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 68(2017), 12 vom: 01. Juni, Seite 3179-3190
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:68
|g year:2017
|g number:12
|g day:01
|g month:06
|g pages:3179-3190
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|u http://dx.doi.org/10.1093/jxb/erx067
|3 Volltext
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|d 68
|j 2017
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|c 06
|h 3179-3190
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