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240222s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108441
|2 doi
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|a pubmed25n1228.xml
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|a eng
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| 100 |
1 |
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|a Hui, Tian
|e verfasserin
|4 aut
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| 245 |
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|a Grafting seedling rootstock strengthens tolerance to drought stress in polyploid mulberry (Morus alba L.)
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.04.2024
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|a Date Revised 01.04.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 The Author(s). Published by Elsevier Masson SAS.. All rights reserved.
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|a The economically adaptable mulberry (Morus alba L.) has a long history of grafting in China, yet the physiological mechanisms and advantages in drought tolerance remain unexplored. In our study, we investigated the responses of self-rooted 2X (diploid), 3X (triploid), and 4X (tetraploid) plants, as well as polyploid plants grafted onto diploid seedling rootstocks (2X/2X, 3X/2X, and 4X/2X) under drought stress. We found that self-rooted diploid plants exhibited the most severe phenotypic damage, lowest water retention, photosynthetic capacity, and the least effective osmotic stress adjustment compared to tetraploid and triploid plants. However, grafted diploid and triploid plants showed effective mitigation of drought-induced damage, with higher relative water content and improved soil water retention. Grafted plants also improved the photosystem response to drought stress through elevated photosynthetic potential, closed stomatal aperture, and faster recovery of chlorophyll biosynthesis in the leaves. Additionally, grafted plants altered osmotic protective compound levels, including starch, soluble sugar, and proline content, thereby enhancing drought resistance. Absolute quantification PCR indicated that the expression levels of proline synthesis-related genes in grafted plants were not influenced after drought stress, whereas they were significantly increased in self-rooted plants. Consequently, our findings support that self-rooted triploid and tetraploid mulberries exhibited superior drought resistance compared to diploid plants. Moreover, grafting onto seedling rootstocks enhanced tolerance against drought stress in diploid and triploid mulberry, but not in tetraploid. Our study provides valuable insights for a comprehensive analysis of physiological effects in response to drought stress between stem-roots and seedling rootstocks
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|a Journal Article
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|a Drought tolerance
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|a Grafting
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|a Mulberry
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|a Polyploid
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|a Seedling rootstocks
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|a Water
|2 NLM
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|2 NLM
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|a 9DLQ4CIU6V
|2 NLM
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| 700 |
1 |
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|a Bao, Lijun
|e verfasserin
|4 aut
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| 700 |
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|a Shi, Xiang
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Huihui
|e verfasserin
|4 aut
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|a Xu, Ke
|e verfasserin
|4 aut
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|a Wei, Xinlan
|e verfasserin
|4 aut
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|a Liang, Jiajun
|e verfasserin
|4 aut
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|a Zhang, Rui
|e verfasserin
|4 aut
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|a Qian, Wei
|e verfasserin
|4 aut
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|a Zhang, Minjuan
|e verfasserin
|4 aut
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|a Su, Chao
|e verfasserin
|4 aut
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| 700 |
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|a Jiao, Feng
|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 208(2024) vom: 30. März, Seite 108441
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnas
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| 773 |
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|g volume:208
|g year:2024
|g day:30
|g month:03
|g pages:108441
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108441
|3 Volltext
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