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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2023.107814
|2 doi
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|a pubmed24n1194.xml
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|a (DE-627)NLM358226333
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|a (NLM)37321041
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|a (PII)S0981-9428(23)00325-X
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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 Zhou, Mengmeng
|e verfasserin
|4 aut
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1 |
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|a The self-association of cytoplasmic malate dehydrogenase 1 promotes malate biosynthesis and confers disease resistance in cassava
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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 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 Malate dehydrogenase (MDH) as an essential metabolic enzyme is widely involved in plant developmental processes. However, the direct relationship between its structural basis and in vivo roles especially in plant immunity remains elusive. In this study, we found that cytoplasmic cassava (Manihot esculenta, Me) MDH1 was essential for plant disease resistance against cassava bacterial blight (CBB). Further investigation revealed that MeMDH1 positively modulated cassava disease resistance, accompanying the regulation of salicylic acid (SA) accumulation and pathogensis-related protein 1 (MePR1) expression. Notably, the metabolic product of MeMDH1 (malate) also improved disease resistance in cassava, and its application rescued the disease susceptibility and decreased immune responses of MeMDH1-silenced plants, indicating that malate was responsible for MeMDH1-mediated disease resistance. Interestingly, MeMDH1 relied on Cys330 residues to form homodimer, which was directly related with MeMDH1 enzyme activity and the corresponding malate biosynthesis. The crucial role of Cys330 residue in MeMDH1 was further confirmed by in vivo functional comparison between overexpression of MeMDH1 and MeMDH1C330A in cassava disease resistance. Taken together, this study highlights that MeMDH1 confers improved plant disease resistance through protein self-association to promote malate biosynthesis, extending the knowledge of the relationship between its structure and cassava disease resistance
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|a Journal Article
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|a Cassava (Manihot esculenta)
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|a Cassava bacterial blight
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|a Malate
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|a Malate dehydrogenase
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|a Self-association
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|a Malate Dehydrogenase
|2 NLM
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| 650 |
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|a EC 1.1.1.37
|2 NLM
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| 650 |
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|a malic acid
|2 NLM
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| 650 |
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|a 817L1N4CKP
|2 NLM
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| 650 |
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7 |
|a Malates
|2 NLM
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| 700 |
1 |
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|a Wang, Guanqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bai, Ruoyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhao, Huiping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ge, Zhongyuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shi, Haitao
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 201(2023) vom: 01. Aug., Seite 107814
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:201
|g year:2023
|g day:01
|g month:08
|g pages:107814
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|u http://dx.doi.org/10.1016/j.plaphy.2023.107814
|3 Volltext
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