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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2017.07.016
|2 doi
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|a pubmed24n1223.xml
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|a (DE-627)NLM275384535
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|a (NLM)28866325
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|a (PII)S0176-1617(17)30198-0
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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 Sumida, Sayuri
|e verfasserin
|4 aut
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|a Phosphoinositide 3-kinase participates in l-methionine sulfoximine-induced cell death via salicylic acid mediated signaling in Nicotiana benthamiana
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|c 2017
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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 14.05.2018
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier GmbH. All rights reserved.
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|a Pseudomonas syringae pv. tabaci causes wildfire disease by the action of tabtoxinine-β-lactam (TβL), a non-specific bacterial toxin. To better understand the molecular mechanisms of wildfire disease and its development, we focused on the phosphoinositide 3-kinase in Nicotiana benthamiana (NbPI3K) and its potential role in the disease outbreak, using l-methionine sulfoximine (MSX) as an easily accessible mimic of the TβL action. The NbPI3K-silenced plants showed accelerated induction of cell death and necrotic lesion formation by MSX, and the expression of hin1, marker gene for the programmed cell death, was strongly induced in the plants. However, the accumulation of ammonium ions, caused by MSX inhibition of glutamine sythetase activity, was not affected by the NbPI3K-silencing. Interestingly, the expression of PR-1a, a marker gene for salicylic acid (SA) innate immunity signaling, and accumulation of SA were both enhanced in the NbPI3K-silenced plants. Accordingly, the acceleration of MSX-induced cell death by NbPI3K-silencing was reduced in NahG plants, and by double silencing of NbPI3K together with the NbICS1 encoding a SA-biosynthetic enzyme. As silencing of NbPI3K accelerated the TβL-induced necrotic lesions, and lesions of wildfire disease caused by P. syringae pv. tabaci, these results suggest that the NbPI3K-related pathway might act as a negative regulator of cell death during development of wildfire disease that involves SA-dependent signaling pathway downstream of TβL action in N. benthamiana
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|a Journal Article
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|a Nicotiana benthamiana
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|a Phosphoinositide 3-kinase
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|a Programmed cell death
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|a Salicylic acid
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|a Wildfire disease
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|a l-Methionine sulfoximine
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|a Plant Proteins
|2 NLM
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|a Methionine Sulfoximine
|2 NLM
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| 650 |
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|a 1982-67-8
|2 NLM
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| 650 |
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|a Phosphatidylinositol 3-Kinase
|2 NLM
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| 650 |
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|a EC 2.7.1.137
|2 NLM
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| 650 |
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|a Salicylic Acid
|2 NLM
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| 650 |
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|a O414PZ4LPZ
|2 NLM
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| 700 |
1 |
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|a Ito, Makoto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Galis, Ivan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nakatani, Hiroko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shinya, Tomonori
|e verfasserin
|4 aut
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| 700 |
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|a Ohnishi, Kouhei
|e verfasserin
|4 aut
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|a Hikichi, Yasufumi
|e verfasserin
|4 aut
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| 700 |
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|a Kiba, Akinori
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 218(2017) vom: 03. Nov., Seite 167-170
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:218
|g year:2017
|g day:03
|g month:11
|g pages:167-170
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|u http://dx.doi.org/10.1016/j.jplph.2017.07.016
|3 Volltext
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|d 218
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