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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.03.039
|2 doi
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|a pubmed24n0985.xml
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|a (DE-627)NLM295755806
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|a (NLM)30954019
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|a (PII)S0981-9428(19)30129-9
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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 |
1 |
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|a Tounsi, Sana
|e verfasserin
|4 aut
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| 245 |
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|a Localization and expression analysis of a novel catalase from Triticum monococcum TmCAT1 involved in response to different environmental stresses
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|c 2019
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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 26.06.2019
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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 © 2019 Elsevier Masson SAS. All rights reserved.
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|a Catalase proteins play a crucial role in detoxifying hydrogen peroxide, generated during plant growth, and in response to various environmental stresses. Despite their importance, little is known about their localization and expression in wheat. In this study, we identified and characterized a novel peroxisomal catalase gene from Triticum monococcum, designated as TmCAT1. Phylogenetic analysis revealed that TmCAT1 shared high identity with TdCAT1 and other plant catalases belonging to subfamily 1. We predicted the 3D structure model and the oligomerization arrangement of TmCAT1. Besides, we displayed an arrangement in asymmetric unit, which involved interactions including, mainly, residues from N-terminal domain. Interestingly, sequence analysis indicated that TmCAT1, like TdCAT1, had the peroxisomal targeting signal (PTS1) around its C-terminus. Transient expression of TmCAT1-GFP and TdCAT1-GFP in tobacco leaves revealed that the two fused proteins are targeted into peroxisomes. However, the truncated forms lacking the tripeptide QKL remained in the cytosol. Concerning the expression profile analysis, TmCAT1 is expressed especially in leaves in normal condition. On the other hand, it is up-regulated by different stress incorporating salt, osmotic, oxidative, heavy metal and hormones stresses. Functional analysis by heterologous expression in yeast cells showed that TmCAT1 improved tolerance to multiple abiotic stresses. The presence of important cis-regulatory elements in the promoter region of TmCAT1 strongly reinforces the interest of this gene in plant adaptation to various stresses
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|a Journal Article
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|a Abiotic stress
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|a Catalase
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|a Peroxisomal targeting signal
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|a Peroxisome
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|a Wheat
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Catalase
|2 NLM
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| 650 |
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|a EC 1.11.1.6
|2 NLM
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| 700 |
1 |
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|a Kamoun, Yosra
|e verfasserin
|4 aut
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| 700 |
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|a Feki, Kaouthar
|e verfasserin
|4 aut
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| 700 |
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|a Jemli, Sonia
|e verfasserin
|4 aut
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|a Saïdi, Mohamed Najib
|e verfasserin
|4 aut
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| 700 |
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|a Ziadi, Hajer
|e verfasserin
|4 aut
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| 700 |
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|a Alcon, Carine
|e verfasserin
|4 aut
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|a Brini, Faiçal
|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 139(2019) vom: 01. Juni, Seite 366-378
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:139
|g year:2019
|g day:01
|g month:06
|g pages:366-378
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|u http://dx.doi.org/10.1016/j.plaphy.2019.03.039
|3 Volltext
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