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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.107902
|2 doi
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|a pubmed24n1200.xml
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|a (DE-627)NLM360065384
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|a (NLM)37506650
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|a (PII)S0981-9428(23)00413-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Andrade-Marcial, M
|e verfasserin
|4 aut
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|a Proteome of Agave angustifolia Haw.
|b Uncovering metabolic alterations, over-accumulation of amino acids, and compensatory pathways in chloroplast-deficient albino plantlets
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|c 2023
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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 14.08.2023
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|a Date Revised 14.08.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2023 Elsevier Masson SAS. All rights reserved.
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|a Amino acids (AA) are essential molecules for plant physiology, acting as precursor molecules for proteins and other organic compounds. Chloroplasts play a vital role in AA metabolism, yet little is known about the impact on AA metabolism of albino plants' lack of chloroplasts. In this study, we conducted a quantitative proteome analysis on albino and variegated somaclonal variants of Agave angustifolia Haw. to investigate metabolic alterations in chloroplast-deficient plants, with a focus on AA metabolic pathways. We identified 82 enzymes involved in AA metabolism, with 32 showing differential accumulation between the somaclonal variants. AaCM, AaALS, AaBCAT, AaIPMS1, AaSHMT, AaAST, AaCGS, and AaMS enzymes were particularly relevant in chloroplast-deficient Agave plantlets. Both variegated and albino phenotypes exhibited excessive synthesis of AA typically associated with chloroplasts (aromatic AAs, BCAAs, Asp, Lys, Pro and Met). Consistent trends were observed for AaBCAT and AaCM at mRNA and protein levels in albino plantlets. These findings highlight the critical activation and reprogramming of AA metabolic pathways in plants lacking chloroplasts. This study contributes to unraveling the intricate relationship between AA metabolism and chloroplast absence, offering insights into survival mechanisms of albino plants
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|a Journal Article
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|a Branched-chain-amino-acid aminotransferase
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|a Chloroplast
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|a Chorismate mutase
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|a Heterotrophic plants
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|a Photosynthesis
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|a Somaclonal variants
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|a Proteome
|2 NLM
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| 650 |
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|a Amino Acids
|2 NLM
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| 700 |
1 |
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|a Ruíz-May, E
|e verfasserin
|4 aut
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|a Elizalde-Contreras, J M
|e verfasserin
|4 aut
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| 700 |
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|a Pacheco, N
|e verfasserin
|4 aut
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| 700 |
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|a Herrera-Pool, E
|e verfasserin
|4 aut
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| 700 |
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|a De-la-Peña, C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 201(2023) vom: 05. Aug., Seite 107902
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:201
|g year:2023
|g day:05
|g month:08
|g pages:107902
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|u http://dx.doi.org/10.1016/j.plaphy.2023.107902
|3 Volltext
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