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241017s2024 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/nph.20147
|2 doi
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|a pubmed24n1611.xml
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|a (DE-627)NLM379024683
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|a (NLM)39415611
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Nedo, Alexander O
|e verfasserin
|4 aut
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| 245 |
1 |
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|a CHUP1 restricts chloroplast movement and effector-triggered immunity in epidermal cells
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| 264 |
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1 |
|c 2024
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 07.11.2024
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|a Date Revised 24.11.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.
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|a Chloroplast Unusual Positioning 1 (CHUP1) plays an important role in the chloroplast avoidance and accumulation responses in mesophyll cells. In epidermal cells, prior research showed silencing CHUP1-induced chloroplast stromules and amplified effector-triggered immunity (ETI); however, the underlying mechanisms remain largely unknown. CHUP1 has a dual function in anchoring chloroplasts and recruiting chloroplast-associated actin (cp-actin) filaments for blue light-induced movement. To determine which function is critical for ETI, we developed an approach to quantify chloroplast anchoring and movement in epidermal cells. Our data show that silencing NbCHUP1 in Nicotiana benthamiana plants increased epidermal chloroplast de-anchoring and basal movement but did not fully disrupt blue light-induced chloroplast movement. Silencing NbCHUP1 auto-activated epidermal chloroplast defense (ECD) responses including stromule formation, perinuclear chloroplast clustering, the epidermal chloroplast response (ECR), and the chloroplast reactive oxygen species (ROS), hydrogen peroxide (H2O2). These findings show chloroplast anchoring restricts a multifaceted ECD response. Our results also show that the accumulated chloroplastic H2O2 in NbCHUP1-silenced plants was not required for the increased basal epidermal chloroplast movement but was essential for increased stromules and enhanced ETI. This finding indicates that chloroplast de-anchoring and H2O2 play separate but essential roles during ETI
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4 |
|a Journal Article
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4 |
|a Chloroplast Unusual Positioning 1 (CHUP1)
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| 650 |
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4 |
|a chloroplast movement
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| 650 |
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4 |
|a effector‐triggered immunity (ETI)
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| 650 |
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4 |
|a epidermal chloroplast defense (ECD)
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| 650 |
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4 |
|a epidermal chloroplast response (ECR)
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| 650 |
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4 |
|a phototropin 2 (phot2)
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| 650 |
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4 |
|a reactive oxygen species
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| 650 |
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4 |
|a stromules
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| 650 |
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|a Hydrogen Peroxide
|2 NLM
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| 650 |
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7 |
|a BBX060AN9V
|2 NLM
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| 650 |
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7 |
|a Plant Proteins
|2 NLM
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| 650 |
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7 |
|a Arabidopsis Proteins
|2 NLM
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| 650 |
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7 |
|a Reactive Oxygen Species
|2 NLM
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| 700 |
1 |
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|a Liang, Huining
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sriram, Jaya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Razzak, Md Abdur
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Jung-Youn
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kambhamettu, Chandra
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dinesh-Kumar, Savithramma P
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Caplan, Jeffrey L
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 244(2024), 5 vom: 05. Nov., Seite 1864-1881
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
8 |
|g volume:244
|g year:2024
|g number:5
|g day:05
|g month:11
|g pages:1864-1881
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/nph.20147
|3 Volltext
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|a GBV_ILN_350
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|a AR
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| 952 |
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|d 244
|j 2024
|e 5
|b 05
|c 11
|h 1864-1881
|