ArticleScientific reports2022
Rhizosphere bacteria associated with Chenopodium quinoa promote resistance to Alternaria alternata in tomato.
Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 21 citations in OpenAlex.
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- Investigating the Biocontrol and Plant Growth-Promoting Potential ofPlants (Basel, Switzerland) · 2025Article
- Bacillus spp. induce defense mechanism and elicit expression of PR-protein genes in tomato against Rhizoctonia solani.Molecular biology reports · 2025Article
- Enhancement of Tomato Growth Through Rhizobacteria and Biocontrol of Associated Diseases.Life (Basel, Switzerland) · 2025Article
- Biocontrol Potential ofMicroorganisms · 2025Article
- Insights into quinoa endophytes: core bacterial communities reveal high stability to water stress and genotypic variation.Environmental microbiome · 2025Article
- Unveiling changes in rhizosphere-associated bacteria linked to the genotype and water stress in quinoa.Microbial biotechnology · 2023Article
- Differential responses in some quinoa genotypes of a consortium of beneficial endophytic bacteria against bacterial leaf spot disease.Frontiers in microbiology · 2023Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Microorganisms can interact with plants to promote plant growth and act as biocontrol agents. Associations with plant growth-promoting rhizobacteria (PGPR) enhance agricultural productivity by improving plant nutrition and enhancing protection from pathogens. Microbial applications can be an ideal substitute for pesticides or fungicides, which can pollute the environment and reduce biological diversity. In this study, we isolated 68 bacterial strains from the root-adhering soil of quinoa (Chenopodium quinoa) seedlings. Bacterial strains exhibited several PGPR activities in vitro, including nutrient solubilization, production of lytic enzymes (cellulase, pectinase and amylase) and siderophore synthesis. These bacteria were further found to suppress the mycelial growth of the fungal pathogen Alternaria alternata. Nine bacterial strains were selected with substantial antagonistic activity and plant growth-promotion potential. These strains were identified based on their 16S rRNA gene sequences and selected for in planta experiments with tomato (Solanum lycopersicum) to estimate their growth-promotion and disease-suppression activity. Among the selected strains, B. licheniformis and B. pumilus most effectively promoted tomato plant growth, decreased disease severity caused by A. alternata infection by enhancing the activities of antioxidant defense enzymes and contributed to induced systemic resistance. This investigation provides evidence for the effectiveness and viability of PGPR application, particularly of B. licheniformis and B. pumilus in tomato, to promote plant growth and induce systemic resistance, making these bacteria promising candidates for biofertilizers and biocontrol agents.
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