ArticleBMC plant biology2025
Metagenomic analysis reveals Bacillus cereus OTU8977 as a potential probiotic in promoting walnut growth.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Whole-Genome Analysis ofMicroorganisms · 2025Article
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12 authors.
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Abstract
backgroundRhizosphere microorganisms can improve soil quality, promote plant growth, and enhance plant health. Despite the isolation of numerous plant growth-promoting rhizobacteria (PGPR) strains, research on how PGPR enhances walnut growth remains limited.
resultsIn this study, the metagenomic sequencing of the rhizosphere soil in 8 major walnut-producing areas in China was conducted to identify 150 shared core amplicon sequence variants. Then, we isolated a strain of Bacillus cereus OTU8977 from the walnut rhizosphere soil and evaluated its potential plant growth-promoting functions. B. cereus OTU8977 can optimize the walnut rhizosphere microecology and promote its growth through its considerable potential in nitrogen fixation, phosphorus solubilization, and potassium dissolution. Transcriptomic analysis of walnut roots revealed that B. cereus OTU8977 promotes the growth of walnuts by enhancing phenylpropanoid biosynthesis and carbohydrate metabolic processes.
conclusionsThis study identified a strain of Bacillus cereus with multiple plant growth-promoting functions, which significantly enhanced walnut growth. Moreover, the study further elucidated the mechanisms underlying its growth-promoting effects, providing a theoretical foundation for the development of walnut-specific microbial fertilizers.
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