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240208s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108415
|2 doi
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|a pubmed24n1334.xml
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|a (DE-627)NLM368141896
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|a (NLM)38324955
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|e rakwb
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|a eng
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|a Peng, Yuxin
|e verfasserin
|4 aut
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|a Pseudoxanthomonas sp. JBR18, a halotolerant endophytic bacterium, improves the salt tolerance of Arabidopsis seedlings
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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 18.03.2024
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|a Date Revised 18.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024 Elsevier Masson SAS. All rights reserved.
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|a Salinization of land is globally increasing due to climate change, and salinity stress is an important abiotic stressor that adversely affects agricultural productivity. In this study, we assessed a halotolerant endophytic bacterium, Pseudoxanthomonas sp. JBR18, for its potential as a plant growth-promoting agent with multiple beneficial properties. The strain exhibited tolerance to sodium chloride concentration of up to 7.5 % in the R2A medium. In vitro evaluation revealed that strain JBR18 possessed proteolytic, protease (EC 3.4), and cellulase (EC 3.2.1.4) activities, as well as the ability to produce indole-acetic acid, proline, and exopolysaccharides. Compared with the controls, co-cultivation of Arabidopsis seedlings with the strain JBR18 improved plant growth, rosette size, shoot and root fresh weight, and chlorophyll content under salinity stress. Moreover, JBR18-inoculated seedlings showed lower levels of malondialdehyde, reactive oxygen species, and Na+ uptake into plant cells under salt stress but higher levels of K+. Additionally, seedlings inoculated with JBR18 exhibited a delayed response time and quantity of salt-responsive genes RD29A, RD29B, RD20, RD22, and KIN1 under salt stress. These multiple effects suggest that Pseudoxanthomonas sp. JBR18 is a promising candidate for mitigating the negative impacts of salinity stress on plant growth. Our findings may assist in future efforts to develop eco-friendly strategies for managing abiotic stress and enhancing plant tolerance to salt stress
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|a Journal Article
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|a Halophyte-associated endophytic bacterium
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|a Plant growth-promoting bacteria
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|a Salt stress
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|a Strain JBR18
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|a Jiang, Lingmin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jeon, Doeun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cho, Donghyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Youngmin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Cha Young
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Ju Huck
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Jiyoung
|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 207(2024) vom: 20. Feb., Seite 108415
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:207
|g year:2024
|g day:20
|g month:02
|g pages:108415
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108415
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