ArticleMolecular biology reports2025
Bacillus spp. induce defense mechanism and elicit expression of PR-protein genes in tomato against Rhizoctonia solani.
Article in Molecular biology reports, 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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Who cites it
2 citing papers in PubMed.
- Molecular pathways in plant growth-promoting rhizobacteria-plant interactions: a comprehensive review.Archives of microbiology · 2026Review
- pH-dependent defense responses in eggplant: growth performance and resistance toFrontiers in plant science · 2026Article
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Authors and funding
6 authors.
Funding
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Abstract
backgroundPlant fitness and health owes to the complicated network of plant microbe interaction. These interactions confer the plants with systemic resistance. To evaluate the systemic resistance mechanism eight molecularly identified Bacillus strains were investigated in present study to mitigate the hazardous impacts of Rhizoctonia solani in tomato plant (Lycopersicum esculentum). METHODS AND
resultsExperiment was designed with eight bacterial treatments along with fungal inoculation including positive healthy control and negative pathogenic control. Out of all selected bacterial strains B. pumilus, B. subtilis subsp. spizizenii and B. sonorensis displayed maximum improvement in tomato growth, reduction in disease severity instigated by R. solani infection by elevated levels of defense related antioxidant enzymes and induced systemic resistance. The induction of defense related response at transcriptomic level revealed a positive correlation in the activation of pathogenesis related protein PR-1, PR-2 (β1,3 glucanase), PR-3 (chitinase) and PR-6 (peroxidase). In addition to transcriptional changes, biochemical defense mechanisms at metabolic level were improved in the form of elevated level of PPO, POD, PAL activities, total phenolics and total soluble proteins in temporal manner. B. pumilus, B. subtilis subsp. spizizenii and B. sonorensis can be applied as potent biofertilizer as well as biocontrol agents to enhance plant growth and trigger systemic resistance against pathogen infection.
conclusionIt can be possibly concluded from the data that these bacillus strains have great potential to be alternative biofungicide at commercial level.
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