ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2025
Exploration of endophytic and rhizospheric bacteria of invasive plant Xanthium strumarium L. reveals their potential in plant growth promotion and bacterial wilt suppression.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Harnessing Microbial Consortia for Sustainable Agriculture: Abiotic and Biotic Stress Mitigation.Current microbiology · 2026Review
- Integrative genomic and functional characterization of halotolerantFrontiers in microbiology · 2025Article
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5 authors.
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Abstract
Plant-associated microbiome plays important role in maintaining overall health of the host plant. Xanthium strumarium displaying resilience to various environmental fluctuations may harbor some bacterial isolates which can help this plant to grow worldwide. The present study aims to isolate endophytic and rhizospheric bacteria from X. strumarium and assess their plant growth-promoting and Ralstonia solanacearum antagonism activity. From a total of 148 isolated bacteria, 7 endophytic and 2 rhizospheric bacterial isolates were found to endow with significant in vitro plant growth promotion activities. The 16S rRNA gene sequence similarity of the 7 endophytic isolates has revealed these bacteria belonging to 5 genera viz. Curtobacterium, Pantoea, Pseudomonas, Microbacterium and Paracoccus whereas, the two rhizospheric isolates were identified as species of Ralstonia pickettii and Priestia megaterium. Maximum growth promotion was observed using the strains Pseudomonas fluorescens XSS6 and Microbacterium hydrothermale XSS20 in the assay conducted on tomato plants. In the in planta inhibition assay of R. solanacearum carried out in tomato seedlings using root bacterization method, Pseudomonas fluorescens XSS6 and Panotea vagans XSS3 showed antagonistic activity with biocontrol efficacy of 94.83% and 83.96%, respectively. GC-MS analysis detected several known antimicrobial compounds in the extract of the culture supernatant of Pseudomonas fluorescens XSS6 and Panotea vagans XSS3 strains, which may contribute to the inhibition of R. solanacearum by these strains. The results of our study indicated that the bacteria associated with X. strumarium exhibit multiple plant-beneficial effects. These bacteria have the potential to be developed as effective biofertilizers and biological control agents, promoting sustainable agriculture practices.
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