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20251004232214.0 |
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251004s2025 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2025.110561
|2 doi
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|a pubmed25n1589.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Cheng, Shaobo
|e verfasserin
|4 aut
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| 245 |
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4 |
|a The GARP-ARR-B family transcription factor SeAPRR2 positively regulates drought tolerance in chayote (Sechium edule)
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|c 2025
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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
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|a Date Revised 03.10.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2025 Elsevier Masson SAS. All rights reserved.
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|a Chayote, an economically vital cucurbit crop, faces severe production and quality constraints due to increasing drought stress. Despite this threat, systematic identification and analysis of the GARP-ARR-B transcription factor family in chayote remain unreported. This study identified 11 ARR-B transcription factors in chayote, with focused investigation on the drought-responsive gene SeAPRR2. SeAPRR2 exhibited rapid induction under PEG-simulated drought, and its heterologous expression significantly enhanced osmotic stress tolerance in yeast. Furthermore, SeAPRR2 overexpression in tomato substantially improved drought resistance, manifested through reduced wilting, decreased electrolyte leakage, lower malondialdehyde content, elevated proline accumulation, attenuated reactive oxygen species (ROS), and accelerated stomatal closure. The interaction between SeAPRR2 and the metallochaperone SeHIPP3 was confirmed by Y2H, LCI, BIFC and molecular docking. Additionally, DAP-seq, Y1H, and LUC assays demonstrated SeAPRR2's direct binding and transcriptional activation of SeP5CS1 and SeNCED5. Collectively, SeAPRR2 synchronously enhances drought tolerance through proline-mediated osmotic adjustment and ABA-triggered stomatal closure, suggesting its potential as a candidate gene for enhancing drought tolerance in chayote germplasm
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|a Journal Article
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|a Chayote
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| 650 |
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4 |
|a Drought stress
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| 650 |
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4 |
|a SeAPRR2
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| 650 |
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4 |
|a SeHIPP3
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| 650 |
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4 |
|a SeNCED5
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| 650 |
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|a SeP5CS
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| 700 |
1 |
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|a Chen, Zhili
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Su, Lihong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Xiaoting
|e verfasserin
|4 aut
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| 700 |
1 |
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|a He, Zhongqun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 229(2025), Pt C vom: 26. Sept., Seite 110561
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:229
|g year:2025
|g number:Pt C
|g day:26
|g month:09
|g pages:110561
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|u http://dx.doi.org/10.1016/j.plaphy.2025.110561
|3 Volltext
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