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240908s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2024.109092
|2 doi
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|a eng
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|a Ren, Jinfeng
|e verfasserin
|4 aut
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|a Antifungal mechanisms and characteristics of Pseudomonas fluorescens
|b Promoting peanut growth and combating Fusarium oxysporum-induced root rot
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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 06.09.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2024 Elsevier Masson SAS. All rights reserved.
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|a Continuous cropping of peanuts presents significant challenges to sustainable production due to soil-borne diseases like root rot caused by Fusarium species. In this study, field inoculation experiments treatments and in vitro agar plate confrontation tests were conducted, including non-inoculated controls (CK), inoculation with Pseudomonas fluorescens (PF), Fusarium oxysporum (FO), and co-inoculation with both (PF + FO). The aim was to explore the antifungal mechanisms of Pseudomonas fluorescens in mitigating root rot and enhancing peanut yield. The results indicated that PF and PF + FO significantly enhanced peanut root activity, as well as superoxide dismutase, catalase, and glutathione S-transferase activities, while simultaneously decreasing the accumulation of reactive oxygen species and malondialdehyde contents, compared to FO treatment. Additionally, PF treatment notably increased lignin content through enhanced phenylalanine ammonia lyase, cinnamate 3-hydroxylase, and peroxidase activity compared to CK and FO treatment. Moreover, PF treatment resulted in longer roots and a higher average diameter and surface area, potentially due to increased endogenous levels of auxin and zeatin riboside, coupled with decreased abscisic acid content. PF treatment significantly elevated chlorophyll content and the maximum photochemical efficiency of PSII in the light-adapted state, the actual photochemical efficiency and the proportion of PSII reaction centers open, leading to improved photosynthetic performance. Confrontation culture assays revealed PF's notable inhibitory effects on Fusarium oxysporum growth, subsequently reducing rot disease incidence in the field. Ultimately, PF treatment led to increased peanut yield by enhancing plant numbers and pod weight compared to FO treatment, indicating its potential in mitigating Fusarium oxysporum-induced root rot disease under continuous cropping systems
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|a Journal Article
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|a Antioxidative ability
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|a Fusarium
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|a Lignin
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|a Plant growth-promoting rhizobacterium
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|a Root rot disease
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| 700 |
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|a Cao, Tianxiao
|e verfasserin
|4 aut
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| 700 |
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|a Zang, Xiuzhi
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Jianbo
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Dongqing
|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: 03. Sept., Seite 109092
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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|g volume:216
|g year:2024
|g day:03
|g month:09
|g pages:109092
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|u http://dx.doi.org/10.1016/j.plaphy.2024.109092
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