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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2023.111967
|2 doi
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|a pubmed25n1221.xml
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|a (DE-627)NLM366452215
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|a (NLM)38154578
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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 Singh, Kirti
|e verfasserin
|4 aut
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|a Phosphorylation of AGO1a by MAP kinases is required for miRNA mediated resistance against Xanthomonas oryzae pv. oryzae infection in rice
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|c 2024
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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 05.02.2024
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|a Date Revised 08.02.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a Copyright © 2024 Elsevier B.V. All rights reserved.
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|a Bacterial leaf blight is a devastating disease caused by Xanthomonas oryzae pv. oryzae (Xoo) which causes severe crop loss in rice. The molecular mechanism that initiates defense against such pathogens remains unexplored. Reports have suggested crucial role of several miRNAs in regulating immune responses in plants. Argonaute (AGO) proteins have been implicated in imparting immunity against pathogens by using small RNAs as guide molecules. Here, we show that phosphorylation of rice AGO1a by MAP kinases is required for miRNA expression regulation during Xoo infection. AGO1a is induced in response to pathogen infection and is under the control of SA signaling pathway. The pathogen responsive MAP kinases MPK3, MPK4 and MPK6, interact with AGO1a in planta and can phosphorylate the protein in vitro. Overexpression of AGO1a extends disease resistance against Xoo in rice and leads to a higher accumulation of miRNAs. Conversely, overexpression of a non phosphorylatable mutant protein aggravates disease susceptibility and remarkably suppresses the miRNA expression levels. At a molecular level, phosphorylation of AGO1a by MAP kinase is required for increased accumulation of miRNAs during pathogen challenge. Taken together, the data suggests that OsAGO1a is a direct phosphorylation target of MAP kinases and this phosphorylation is crucial for its role in imparting disease resistance
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|a Journal Article
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|a AGO1a
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|a Biotic stress
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| 650 |
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|a Gene regulation
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|a MAP kinase
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|a MiRNA
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| 650 |
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|a Phosphorylation
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| 650 |
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|a Xanthomonas oryzae
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| 650 |
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|a MicroRNAs
|2 NLM
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| 650 |
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|a Mitogen-Activated Protein Kinases
|2 NLM
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| 650 |
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|a EC 2.7.11.24
|2 NLM
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| 700 |
1 |
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|a Sharma, Deepika
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bhagat, Prakash Kumar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tayyeba, Sumaira
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Noryang, Stanzin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sinha, Alok Krishna
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 340(2024) vom: 01. März, Seite 111967
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnas
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| 773 |
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|g volume:340
|g year:2024
|g day:01
|g month:03
|g pages:111967
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|u http://dx.doi.org/10.1016/j.plantsci.2023.111967
|3 Volltext
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|a AR
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|d 340
|j 2024
|b 01
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|h 111967
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