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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eraa394
|2 doi
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|a pubmed24n1047.xml
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|a (DE-627)NLM314186077
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|a (NLM)32845293
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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 Jacques, Florian
|e verfasserin
|4 aut
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| 245 |
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|a Roles for ALDH10 enzymes in γ-butyrobetaine synthesis, seed development, germination, and salt tolerance in Arabidopsis
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|c 2020
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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
|b cr
|2 rdacarrier
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|a Date Completed 14.05.2021
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|a Date Revised 14.05.2021
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Plant genomes generally contain two aldehyde dehydrogenase 10 (ALDH10) genes, which encode NAD+-dependent enzymes. These oxidize various aminoaldehydes that are produced by the catabolism of amino acids and polyamines. ALDH10s are closely related to the animal and fungal trimethylaminobutyraldehyde dehydrogenases (TMABADHs) that are involved in the synthesis of γ-butyrobetaine, the precursor of carnitine. Here, we explore the ability of the Arabidopsis thaliana proteins AtALDH10A8 and AtALDH10A9 to oxidize aminoaldehydes. We demonstrate that these enzymes display high TMABADH activities in vitro. Moreover, they can complement the Candida albicans tmabadhΔ/Δ null mutant. These findings illustrate the link between AtALDH10A8 and AtALDH10A9 and γ-butyrobetaine synthesis. An analysis of single and double knockout Arabidopsis mutant lines revealed that the double mutants had reduced γ-butyrobetaine levels. However, there were no changes in the carnitine contents of these mutants. The double mutants were more sensitive to salt stress. In addition, the siliques of the double mutants had a significant proportion of seeds that failed to mature. The mature seeds contained higher amounts of triacylglycerol, facilitating accelerated germination. Taken together, these results show that ALDH10 enzymes are involved in γ-butyrobetaine synthesis. Furthermore, γ-butyrobetaine fulfils a range of physiological roles in addition to those related to carnitine biosynthesis
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Aldehyde dehydrogenase 10
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|a carnitine
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|a early development
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|a salt stress
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|a seed development
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|a γ-butyrobetaine biosynthesis
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|a Arabidopsis Proteins
|2 NLM
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|a Betaine
|2 NLM
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| 650 |
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|a 3SCV180C9W
|2 NLM
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|a gamma-butyrobetaine
|2 NLM
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| 650 |
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|a 407-64-7
|2 NLM
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| 650 |
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|a Carnitine
|2 NLM
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| 650 |
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|a S7UI8SM58A
|2 NLM
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| 700 |
1 |
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|a Zhao, Yingjuan
|e verfasserin
|4 aut
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1 |
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|a Kopečná, Martina
|e verfasserin
|4 aut
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| 700 |
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|a Končitíková, Radka
|e verfasserin
|4 aut
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| 700 |
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|a Kopečný, David
|e verfasserin
|4 aut
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|a Rippa, Sonia
|e verfasserin
|4 aut
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| 700 |
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|a Perrin, Yolande
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 22 vom: 31. Dez., Seite 7088-7102
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:71
|g year:2020
|g number:22
|g day:31
|g month:12
|g pages:7088-7102
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|u http://dx.doi.org/10.1093/jxb/eraa394
|3 Volltext
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|d 71
|j 2020
|e 22
|b 31
|c 12
|h 7088-7102
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