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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2014.09.001
|2 doi
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|a pubmed24n0813.xml
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|a (DE-627)NLM244161259
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|a (NLM)25462074
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|a (PII)S0176-1617(14)00253-3
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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 Miyamoto, Koji
|e verfasserin
|4 aut
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| 245 |
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|a Overexpression of the bZIP transcription factor OsbZIP79 suppresses the production of diterpenoid phytoalexin in rice cells
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|c 2015
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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 14.02.2017
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|a Date Revised 07.12.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier GmbH. All rights reserved.
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|a Phytoalexins are antimicrobial specialised metabolites that are produced by plants in response to pathogen attack. Momilactones and phytocassanes are major diterpenoid phytoalexins in rice that are synthesised from geranylgeranyl diphosphate that is derived from the methylerythritol phosphate (MEP) pathway. We have previously reported that rice cells overexpressing the basic leucine zipper (bZIP) transcription factor OsTGAP1 exhibit a hyperaccumulation of momilactones and phytocassanes, with hyperinductive expression of momilactone and phytocassane biosynthetic genes and MEP pathway genes, upon response to a chitin oligosaccharide elicitor. For a better understanding of OsTGAP1-mediated regulation of diterpenoid phytoalexin production, we identified OsTGAP1-interacting proteins using yeast two-hybrid screening. Among the OsTGAP1-interacting protein candidates, a TGA factor OsbZIP79 was investigated to verify its physical interaction with OsTGAP1 and involvement in the regulation of phytoalexin production. An in vitro pull-down assay demonstrated that OsTGAP1 and OsbZIP79 exhibited a heterodimeric as well as a homodimeric interaction. A bimolecular fluorescence complementation analysis also showed the interaction between OsTGAP1 and OsbZIP79 in vivo. Intriguingly, whereas OsbZIP79 transactivation activity was observed in a transient reporter assay, the overexpression of OsbZIP79 resulted in suppression of the elicitor-inducible expression of diterpenoid phytoalexin biosynthetic genes, and thus caused a decrease in the accumulation of phytoalexin in rice cells. These results suggest that OsbZIP79 functions as a negative regulator of phytoalexin production triggered by a chitin oligosaccharide elicitor in rice cells, although it remains open under which conditions OsbZIP79 can work with OsTGAP1
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|a Journal Article
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|a Metabolic gene cluster
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|a Phytoalexin
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|a Rice
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|a TGA factor
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|a bZIP transcription factor
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|a Basic-Leucine Zipper Transcription Factors
|2 NLM
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|a Diterpenes
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Polyisoprenyl Phosphates
|2 NLM
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| 650 |
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|a Sesquiterpenes
|2 NLM
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| 650 |
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|a geranylgeranyl pyrophosphate
|2 NLM
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| 650 |
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|a N21T0D88LX
|2 NLM
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| 650 |
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|a Phytoalexins
|2 NLM
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1 |
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|a Nishizawa, Yoko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Minami, Eiichi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nojiri, Hideaki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yamane, Hisakazu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Okada, Kazunori
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 173(2015) vom: 15. Jan., Seite 19-27
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:173
|g year:2015
|g day:15
|g month:01
|g pages:19-27
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| 856 |
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|u http://dx.doi.org/10.1016/j.jplph.2014.09.001
|3 Volltext
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|d 173
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