Abstract
Bacillus subtilis RB14 was used as an antagonist against fungal pathogen Rhizoctonia solani K1 to control damping-off diseases in tomato plants. Tomato seeds were treated with B. subtilis RB14 culture. The concentration of bacterial cells for the treatment was about 108 cfu/ml. Treated tomato seeds showed 99% germination index similar to the untreated seeds. Scanning Electron Microscopic observations showed a clear evidence of the presence of B. subtilis RB14 on tomato seed surface. Clear inhibition zone was observed using treated seed in dual plate assay against R. solani K1. B. subtilis RB14 treated seed showed 80% reduction in disease incidence during in vivo plant experiments. B. subtilis RB14 produces lipopeptide antifungal antibiotic iturin A which could suppress R. solani K1. The phenomenon was supported by our observation where we found significant amount of iturin A from the root zone soil of the seed treated plants.
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Claims 6
Claim · model-written summary
Seed treatment with B. subtilis RB14 reduced disease incidence caused by Rhizoctonia solani K1 in tomato by 80% in in vivo plant experiments.
- Taxon
- tomato
Solanum lycopersicume2 - Treatment
- B. subtilis RB14 treated seede1
- Interactor
- Rhizoctonia solani K1
Rhizoctonia solanie2pathogen - Second interactor
- Bacillus subtilis RB14
Bacillus subtilise2biocontrol_agent - Outcome
- disease incidencee1
- Direction
- reductione1
- Value
- 80%e1
- Setting
- in vivo plant experimentse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“B. subtilis RB14 treated seed showed 80% reduction in disease incidence during in vivo plant experiments”
e2“Bacillus subtilis RB14 was used as an antagonist against fungal pathogen Rhizoctonia solani K1 to control damping-off diseases in tomato plants”
Claim · model-written summary
Tomato seeds treated with B. subtilis RB14 showed a 99% germination index similar to untreated seeds.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- B. subtilis RB14 culturee0
- Outcome
- germination indexe3
- Direction
- similare3
- Value
- 99%e3
- Comparator
- untreated seedse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato seeds were treated with B. subtilis RB14 culture”
e3“Treated tomato seeds showed 99% germination index similar to the untreated seeds”
Claim · model-written summary
Treated seed produced a clear inhibition zone against Rhizoctonia solani K1 in a dual plate assay.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- treated seede4
- Interactor
- R. solani K1Rhizoctonia solanie4pathogen
- Outcome
- inhibition zonee4
- Setting
- dual plate assaye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Bacillus subtilis RB14 was used as an antagonist against fungal pathogen Rhizoctonia solani K1 to control damping-off diseases in tomato plants”
e4“Clear inhibition zone was observed using treated seed in dual plate assay against R. solani K1”
Claim · model-written summary
B. subtilis RB14 was present on the surface of tomato seeds as shown by scanning electron microscopy.
- Taxon
- tomatoSolanum lycopersicume7
- Organ / stage
- seed surfacee7
- Interactor
- B. subtilis RB14Bacillus subtilise7biocontrol_agent
- Outcome
- presence of B. subtilis RB14e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Scanning Electron Microscopic observations showed a clear evidence of the presence of B. subtilis RB14 on tomato seed surface”
Claim · model-written summary
B. subtilis RB14 produces the antifungal lipopeptide iturin A, which could suppress Rhizoctonia solani K1 in tomato.
- Taxon
- tomatoSolanum lycopersicume2
- Interactor
- R. solani K1Rhizoctonia solanie5pathogen
- Second interactor
- B. subtilis RB14Bacillus subtilise5biocontrol_agent
- Compound
- iturin Ae5
- Outcome
- suppress R. solani K1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Bacillus subtilis RB14 was used as an antagonist against fungal pathogen Rhizoctonia solani K1 to control damping-off diseases in tomato plants”
e5“B. subtilis RB14 produces lipopeptide antifungal antibiotic iturin A which could suppress R. solani K1”
Claim · model-written summary
Significant amounts of iturin A were found in the root zone soil of seed-treated tomato plants.
- Taxon
- tomatoSolanum lycopersicume2
- Outcome
- amount of iturin Ae6
- Qualifier
- significante6
- Setting
- root zone soile6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Bacillus subtilis RB14 was used as an antagonist against fungal pathogen Rhizoctonia solani K1 to control damping-off diseases in tomato plants”
e6“we found significant amount of iturin A from the root zone soil of the seed treated plants”
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See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.