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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2020.02.001
|2 doi
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|a pubmed24n1021.xml
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|a (DE-627)NLM306564572
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|a (NLM)32062332
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|a (PII)S0981-9428(20)30049-8
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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 Wang, Yaping
|e verfasserin
|4 aut
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| 245 |
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|a Integrating physiological and metabolites analysis to identify ethylene involvement in petal senescence in Tulipa gesneriana
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|c 2020
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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 17.07.2020
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2020 Elsevier Masson SAS. All rights reserved.
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|a Flower senescence is classified into ethylene-dependent and ethylene-independent manners and determines the flower longevity which is valuable for ornamental plants. However, the manner of petal senescence in tulip is still less defined. In this study, we characterized the physiological indexes in the process of petal senescence, as well as metabolic and ethylene responses in tulip cultivar 'American Dream', and further identified the role of ethylene biosynthesis genes TgACS by transgenic and transient assays. Primary metabolites profiling revealed that sugars, amino acids and organic acids preferentially accumulated in senescent petals. Additionally, senescence-associated genes were identified and significantly up-regulated, coupled with increased ROS contents, rapid water loss and accelerated cell membrane breakdown. Moreover, ethylene production was stimulated as evidenced by increasing in ACS activity and ethylene biosynthesis-related genes expression. Exogenous treatment of cutting flowers with 1-MCP or ethephon resulted in delayed or enhanced petal senescence, respectively. Transient down-regulation of TgACS by VIGS assay in tulip petals delayed senescence, while over-expressed TgACS1 in tobacco promoted leaf senescence. Taken together, this study provides evidences to certify ethylene roles and TgACS functions during flower senescence in tulip
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|a Journal Article
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|a Ethylene
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|a Metabolic profiling
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|a Petal senescence
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|a TgACS
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|a Tulip
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|a Ethylenes
|2 NLM
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| 700 |
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|a Zhao, Huimin
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Chunli
|e verfasserin
|4 aut
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| 700 |
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|a Cui, Guangfen
|e verfasserin
|4 aut
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| 700 |
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|a Qu, Lianwei
|e verfasserin
|4 aut
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| 700 |
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|a Bao, Manzhu
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Jihua
|e verfasserin
|4 aut
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| 700 |
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|a Chan, Zhulong
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Yanping
|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 149(2020) vom: 28. Apr., Seite 121-131
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:149
|g year:2020
|g day:28
|g month:04
|g pages:121-131
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|u http://dx.doi.org/10.1016/j.plaphy.2020.02.001
|3 Volltext
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