ArticleBMC microbiology2023
Screening of high-efficiency nitrogen-fixing bacteria from the traditional Chinese medicine plant Astragalus mongolicus and its effect on plant growth promotion and bacterial communities in the rhizosphere.
Article in BMC microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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24 citing papers in PubMed.
- Phytomicrobiome of Helianthus annuus: in vitro assessment of plant growth-promoting traits and heavy metal tolerance.BMC plant biology · 2026Article
- Diversity and distribution of the microbiome in the bulbs and rhizosphere soil ofFrontiers in microbiology · 2026Article
- PGPR-mediated enhancement of growth, phytochemical diversity, and metabolites in black turmeric (Frontiers in microbiology · 2026Article
- Phosphate-mobilizing bacterial community structure and mobilization mechanisms in tobacco rhizosphere.Current research in microbial sciences · 2026Article
- Root triterpenoid metabolites drive the assembly and feedback regulation of the rhizosphere microbiome during flowering to senescence inFrontiers in microbiology · 2026Article
- Symbiotic N-Fixing Bacteria in the Root and Leaf of Typical Alpine Grassland Plants.Microbial ecology · 2025Article
- Drought-tolerant rhizobacterial consortia with diverse plant growth promoting traits enhance wheat and faba bean growth under water and low-P availability promising multi-traits.BMC microbiology · 2025Article
- Rhizosphere Microbiota and Soil Nutrients Shape Fruit Lignan Composition ofLife (Basel, Switzerland) · 2025Article
- Pathogen Identification, Antagonistic Microbe Screening, and Biocontrol Strategies forMicroorganisms · 2025Article
- Enhanced understanding of nitrogen fixing bacteria through DNA extraction with polyvinylidene fluoride membrane.Scientific reports · 2025Article
- Revealing the Existence of Diverse Strategies for Phosphorus Solubilization and Acquisition in Plant-Growth PromotingMicroorganisms · 2025Article
- The Isolation of Lead-Tolerant PGPR from Red Clover Soil and Its Role in Promoting the Growth of Alfalfa.Microorganisms · 2025Article
- Comparative analysis of rhizosphere microbial communities and secondary metabolites in cultivatedFrontiers in plant science · 2025Article
- Microbiomes in action: multifaceted benefits and challenges across academic disciplines.Frontiers in microbiology · 2025Review
- Mulching influences pear yield and quality by changing rhizosphere microbial community structure in the arid region of Northwest China.Frontiers in plant science · 2025Article
- Antimony-resistant PGPR mitigates Sb toxicity and accumulation in peppers by restructuring rhizosphere microorganisms.Frontiers in microbiology · 2025Article
- Mechanisms underlying the effects of nitrogen and phosphorus on the growth and berberine biosynthesis ofFrontiers in plant science · 2025Article
- Integrated omics analysis of PGPR and AMF effects on soil microbiota and root metabolites inFrontiers in microbiomes · 2025Article
- Isolation and characterization of non-rhizobial bacteria and arbuscular mycorrhizal fungi from legumes.BMC microbiology · 2024Article
- Analysis of Lignan Content and Rhizosphere Microbial Diversity ofLife (Basel, Switzerland) · 2024Article
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Abstract
backgroundAstragalus mongolicus Bunge is used in traditional Chinese medicine and is thus cultivated in bulk. The cultivation of A. mongolicus requires a large amount of nitrogen fertilizer, increasing the planting cost of medicinal materials and polluting the environment. Isolation and screening of plant growth-promoting rhizobacteria (PGPR) and exploring the nitrogen fixation potential of A. mongolicus rhizosphere microorganisms would effectively reduce the production cost of A. mongolicus.
resultsThis study used A. mongolicus roots and rhizosphere soil samples from Longxi County of Gansu Province, Jingle County, and Hunyuan County of Shanxi Province, China, to isolate and identify nitrogen-fixing bacteria. Through nitrogen fixation efficiency test, single strain inoculation test, and plant growth-promoting characteristics, three strains, Bacillus sp. J1, Arthrobacter sp. J2, and Bacillus sp. G4 were selected from 86 strains of potential nitrogen-fixing bacteria, which were the most effective in promoting the A. mongolicus growth and increasing the nitrogen, phosphorus, and potassium content in plants. The antagonistic test showed that these bacteria could grow smoothly under the co-culture conditions. The J1, J2, and G4 strains were used in a mixed inoculum and found to enhance the biomass of A. mongolicus plants and the accumulation of the main medicinal components in the field experiment. Mixed bacterial agent inoculation also increased bacterial diversity and changed the structure of the bacterial community in rhizosphere soil. Meanwhile, the relative abundance of Proteobacteria increased significantly after inoculation, suggesting that Proteobacteria play an important role in plant growth promotion.
conclusionsThese findings indicate that specific and efficient PGPRs have a significant promoting effect on the growth of A. mongolicus, while also having a positive impact on the structure of the host rhizosphere bacteria community. This study provides a basis for developing a nitrogen-fixing bacterial fertilizer and improving the ecological planting efficiency of A. mongolicus.
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