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241016s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.109196
|2 doi
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|a pubmed24n1569.xml
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|a eng
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| 100 |
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|a Li, Chenya
|e verfasserin
|4 aut
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|a Preinoculation with Bradyrhizobium japonicum enhances the salt tolerance of Glycine max seedlings by regulating polyamine metabolism in roots
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 15.10.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2024. Published by Elsevier Masson SAS.
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|a Rhizobia are common symbiotic microorganisms in the root system of leguminous plants that can usually provide nitrogen to the host through nitrogen fixation. Studies have shown that rhizobium-preinoculated soybean plants usually exhibit improved salt tolerance, but the underlying mechanism is not fully understood. In this paper, transcriptome sequencing (RNA-seq) revealed that preinoculation with rhizobia affected polyamine (PA) metabolism in soybean roots. The assay of PA contents showed that preinoculation with rhizobia significantly increased the putrescine (Put) content in roots and leaves during short-term salt treatment (0-5 d). Long-term salt treatment (5-7 d) resulted in a high Put content and significantly increased Spm and Spd contents, resulting in a rapid increase in the Put/(Spd + Spm) ratio (0-5 d) and subsequent decrease. Moreover, rhizobium preinoculation of soybean plants resulted in increased contents of conjugated and bound PAs under salt stress. Further transcriptome sequencing, PA contents, PA synthase expression and activity analysis revealed that GmADC may be a key gene related to salt tolerance in rhizobium-preinoculated soybean plants, and the GmADC-overexpressing soybean hairy-root composite plants exhibited less ROS damage, lower Cl-/NO3- ratios and Na+/K+ ratios, and stabilized ion homeostasis. Taken together, preinoculation with rhizobia increased the expression level and enzyme activity of arginine decarboxylase (ADC) in soybean roots, increased the content of Put in roots and leaves, and increased the content of conjugated and bound PAs in soybean plants, thereby alleviating the oxidative and ionic injuries of soybean plants and enhancing the salt tolerance
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|a Journal Article
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|a Glycine soja
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|a GmADC
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|a Polyamine metabolism
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|a Salt tolerance
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|a Transcriptome sequencing
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| 700 |
1 |
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|a Huang, Qiaoyue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Shile
|e verfasserin
|4 aut
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| 700 |
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|a Cheng, Cong
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Yutin
|e verfasserin
|4 aut
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| 700 |
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|a Yu, Bingjun
|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 216(2024) vom: 12. Okt., Seite 109196
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:216
|g year:2024
|g day:12
|g month:10
|g pages:109196
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|u http://dx.doi.org/10.1016/j.plaphy.2024.109196
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