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240519s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.108731
|2 doi
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|a pubmed24n1454.xml
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|a (DE-627)NLM372499546
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|a (NLM)38761545
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|a (PII)S0981-9428(24)00399-1
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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 Pal, Gaurav
|e verfasserin
|4 aut
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|a Seed endophytic bacterium Lysinibacillus sp. (ZM1) from maize (Zea mays L.) shapes its root architecture through modulation of auxin biosynthesis and nitrogen metabolism
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|c 2024
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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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|2 rdacarrier
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|a Date Completed 15.06.2024
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|a Date Revised 28.06.2024
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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 Seed endophytic bacteria have been shown to promote the growth and development of numerous plants. However, the underlying mechanism still needs to be better understood. The present study aims to investigate the role of a seed endophytic bacterium Lysinibacillus sp. (ZM1) in promoting plant growth and shaping the root architecture of maize seedlings. The study explores how bacteria-mediated auxin biosynthesis and nitrogen metabolism affect plant growth promotion and shape the root architecture of maize seedlings. The results demonstrate that ZM1 inoculation significantly enhances root length, root biomass, and the number of seminal roots in maize seedlings. Additionally, the treated seedlings exhibit increased shoot biomass and higher levels of photosynthetic pigments. Confocal laser scanning microscopy (CLSM) analysis revealed extensive colonization of ZM1 on root hairs, as well as in the cortical and stellar regions of the root. Furthermore, LC-MS analysis demonstrated elevated auxin content in the roots of the ZM1 treated maize seedlings compared to the uninoculated control. Inoculation with ZM1 significantly increased the levels of endogenous ammonium content, GS, and GOGAT enzyme activities in the roots of treated maize seedlings compared to the control, indicating enhanced nitrogen metabolism. Furthermore, inoculation of bacteria under nitrogen-deficient conditions enhanced plant growth, as evidenced by increased root shoot length, fresh and dry weights, average number of seminal roots, and content of photosynthetic pigments. Transcript analysis indicated upregulation of auxin biosynthetic genes, along with genes involved in nitrogen metabolism at different time points in roots of ZM1-treated maize seedlings. Collectively, our findings highlight the positive impact of Lysinibacillus sp. ZM1 inoculation on maize seeds by improving root architecture through modulation of auxin biosynthesis and affecting various nitrogen metabolism related parameters. These findings provide valuable insights into the potential utilization of seed endophytic bacteria as biofertilizers to enhance plant growth and yield in nutrient deficient soils
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|a Journal Article
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|a Auxin modulation
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|a Lysinibacillus sp.
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|a Nitrogen metabolism
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|a Root architecture
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|a Seed endophytic bacteria
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|a Zea mays
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|a Indoleacetic Acids
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 700 |
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|a Saxena, Samiksha
|e verfasserin
|4 aut
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| 700 |
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|a Kumar, Kanchan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Verma, Anand
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kumar, Deepak
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shukla, Pooja
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pandey, Ashutosh
|e verfasserin
|4 aut
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|a White, James
|e verfasserin
|4 aut
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| 700 |
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|a Verma, Satish K
|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 212(2024) vom: 15. Juni, Seite 108731
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:212
|g year:2024
|g day:15
|g month:06
|g pages:108731
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| 856 |
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|u http://dx.doi.org/10.1016/j.plaphy.2024.108731
|3 Volltext
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