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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erad133
|2 doi
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|a pubmed24n1184.xml
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|a (DE-627)NLM355310511
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|a (NLM)37026385
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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 |
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|a Boussardon, Clément
|e verfasserin
|4 aut
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| 245 |
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|a Comparison of plastid proteomes points towards a higher plastidial redox turnover in vascular tissues than in mesophyll cells
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|c 2023
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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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|a Date Completed 07.08.2023
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|a Date Revised 07.08.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Plastids are complex organelles that vary in size and function depending on the cell type. Accordingly, they can be referred to as amyloplasts, chloroplasts, chromoplasts, etioplasts, or proplasts, to only cite a few. Over the past decades, methods based on density gradients and differential centrifugation have been extensively used for the purification of plastids. However, these methods need large amounts of starting material, and hardly provide a tissue-specific resolution. Here, we applied our IPTACT (Isolation of Plastids TAgged in specific Cell Types) method, which involves the biotinylation of plastids in vivo using one-shot transgenic lines expressing the Translocon of the Outer Membrane 64 (TOC64) gene coupled with a biotin ligase receptor particle and the BirA biotin ligase, to isolate plastids from mesophyll and companion cells of Arabidopsis using tissue specific pCAB3 and pSUC2 promoters, respectively. Subsequently, a proteome profiling was performed, which allowed the identification of 1672 proteins, among which 1342 were predicted to be plastidial, and 705 were fully confirmed according to the SUBA5 database. Interestingly, although 92% of plastidial proteins were equally distributed between the two tissues, we observed an accumulation of proteins associated with jasmonic acid biosynthesis, plastoglobuli (e.g. NAD(P)H dehydrogenase C1, vitamin E deficient 1, plastoglobulin of 34 kDa, ABC1-like kinase 1) and cyclic electron flow in plastids originating from vascular tissue. Besides demonstrating the technical feasibility of isolating plastids in a tissue-specific manner, our work provides strong evidence that plastids from vascular tissue have a higher redox turnover to ensure optimal functioning, notably under high solute strength as encountered in vascular cells
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a Biotin–streptavidin interaction
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| 650 |
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4 |
|a cyclic electron flow
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4 |
|a plastids
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| 650 |
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4 |
|a plastoglobuli
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|a proteomics
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|a vascular and mesophyll cells
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| 650 |
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|a Proteome
|2 NLM
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| 650 |
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|a Biotin
|2 NLM
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| 650 |
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|a 6SO6U10H04
|2 NLM
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| 700 |
1 |
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|a Carrie, Chris
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Keech, Olivier
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 74(2023), 14 vom: 03. Aug., Seite 4110-4124
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:74
|g year:2023
|g number:14
|g day:03
|g month:08
|g pages:4110-4124
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|u http://dx.doi.org/10.1093/jxb/erad133
|3 Volltext
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|d 74
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|h 4110-4124
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