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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2011.04.013
|2 doi
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|a pubmed25n0695.xml
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|a (DE-627)NLM208514821
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|a (NLM)21601466
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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 Zsigmond, Laura
|e verfasserin
|4 aut
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|a Enhanced activity of galactono-1,4-lactone dehydrogenase and ascorbate-glutathione cycle in mitochondria from complex III deficient Arabidopsis
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|c 2011
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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 16.12.2011
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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 © 2011 Elsevier Masson SAS. All rights reserved.
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|a The mitochondrial antioxidant homeostasis was investigated in Arabidopsis ppr40-1 mutant, which presents a block of electron flow at complex III. The activity of the ascorbate biosynthetic enzyme, L-galactono-1,4-lactone dehydrogenase (EC 1.3.2.3) (GLDH) was elevated in mitochondria isolated from mutant plants. In addition increased activities of the enzymes of Foyer-Halliwell-Asada cycle and elevated glutathione (GSH) level were observed in the mutant mitochondria. Lower ascorbate and ascorbate plus dehydroascorbate contents were detected at both cellular and mitochondrial level. Moreover, the more oxidized mitochondrial redox status of ascorbate in the ppr40-1 mutant indicated that neither the enhanced activity of GLDH nor Foyer-Halliwell-Asada cycle could compensate for the enhanced ascorbate consumption in the absence of a functional respiratory chain
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Antioxidants
|2 NLM
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|a Arabidopsis Proteins
|2 NLM
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|a pentatricopeptide repeat protein, Arabidopsis
|2 NLM
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|a Ascorbate Peroxidases
|2 NLM
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|a EC 1.11.1.11
|2 NLM
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|a Oxidoreductases Acting on CH-CH Group Donors
|2 NLM
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|a EC 1.3.-
|2 NLM
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|a galactonolactone dehydrogenase
|2 NLM
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|a EC 1.3.2.3
|2 NLM
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|a NADH, NADPH Oxidoreductases
|2 NLM
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|a EC 1.6.-
|2 NLM
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| 650 |
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|a monodehydroascorbate reductase (NADH)
|2 NLM
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| 650 |
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|a EC 1.6.5.4
|2 NLM
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| 650 |
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|a Glutathione Reductase
|2 NLM
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| 650 |
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|a EC 1.8.1.7
|2 NLM
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|a Electron Transport Complex III
|2 NLM
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|a EC 7.1.1.8
|2 NLM
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|a Glutathione
|2 NLM
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|a GAN16C9B8O
|2 NLM
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|a Ascorbic Acid
|2 NLM
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|a PQ6CK8PD0R
|2 NLM
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| 650 |
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|a Dehydroascorbic Acid
|2 NLM
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| 650 |
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|a Y2Z3ZTP9UM
|2 NLM
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1 |
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|a Tomasskovics, Bálint
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Deák, Veronika
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rigó, Gábor
|e verfasserin
|4 aut
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|a Szabados, László
|e verfasserin
|4 aut
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| 700 |
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|a Bánhegyi, Gábor
|e verfasserin
|4 aut
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| 700 |
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|a Szarka, András
|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 49(2011), 8 vom: 15. Aug., Seite 809-15
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
1 |
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|g volume:49
|g year:2011
|g number:8
|g day:15
|g month:08
|g pages:809-15
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|u http://dx.doi.org/10.1016/j.plaphy.2011.04.013
|3 Volltext
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|d 49
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|e 8
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