Abstract
A rhizobacterium, Bacillus subtilis (isolate Bst) was tested for its ability to induce systemic resistance against RotylenchuIus rem/ormis in tomato. A split root system was used to keep the inducer (rhizobacterium) and the challenger (nematode) spatially separate and observations on nematode penetration, its multiplication and growth characters were recorded. The results show that the nematode penetration was reduced by 44.5% in the split root in which one half received a bacterial cell suspension (10^10 cells/mIl as a soil drench and a week after the other half was inoculated with the nematode. All growth characters measured were increased to some extent by the bacterium, but only fresh shoot length and fresh shoot weight significantly differed from the control. The nematode multiplication rate was reduced significantly when the bacterial soil drench was applied a week before nematode inoculation but not in those treatments that received simultaneous inoculations of the bacterium and the nematode. The results indicate that BSt could induce systemic resistance in tomato against R. reniformis.
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Claims 5
Claim · model-written summary
Bacterial soil drench reduced nematode penetration by 44.5%.
- Taxon
- tomato
Solanum lycopersicume2 - Treatment
- bacterial cell suspension (10^10 cells/mIl as a soil drenche0
- Second interactor
- Bacillus subtilis
Bacillus subtilise1biocontrol_agent - Outcome
- nematode penetratione0
- Direction
- reducede0
- Value
- 44.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nematode penetration was reduced by 44.5% in the split root in which one half received a bacterial cell suspension (10^10 cells/mIl as a soil drench and a week after the other half was inoculated with the nematode”
e1“Bacillus subtilis (isolate Bst)”
e2“resistance against RotylenchuIus rem/ormis in tomato”
e3“RotylenchuIus rem/ormis”
Claim · model-written summary
Bacterium treatment increased tomato growth characters, with only fresh shoot length and weight significantly differing from control.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- bacteriume0
- Interactor
- Bacillus subtilisBacillus subtilise2biocontrol_agent
- Outcome
- fresh shoot length and fresh shoot weighte0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All growth characters measured were increased to some extent by the bacterium, but only fresh shoot length and fresh shoot weight significantly differed from the control”
e1“resistance against RotylenchuIus rem/ormis in tomato”
e2“Bacillus subtilis”
Claim · model-written summary
Bacterial drench one week before nematode inoculation significantly reduced nematode multiplication rate.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- bacterial soil drenche0
- Second interactor
- Bacillus subtilisBacillus subtilise2biocontrol_agent
- Outcome
- nematode multiplication ratee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nematode multiplication rate was reduced significantly when the bacterial soil drench was applied a week before nematode inoculation”
e1“resistance against RotylenchuIus rem/ormis in tomato”
e2“Bacillus subtilis”
Claim · model-written summary
Simultaneous bacterial and nematode inoculation did not significantly reduce nematode multiplication.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- simultaneous inoculations of the bacterium and the nematodee0
- Outcome
- nematode multiplication ratee1
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“not in those treatments that received simultaneous inoculations of the bacterium and the nematode”
e1“nematode multiplication rate was reduced significantly”
e2“resistance against RotylenchuIus rem/ormis in tomato”
Claim · model-written summary
The authors inferred that BSt could induce systemic resistance against R. reniformis in tomato.
- Taxon
- tomatoSolanum lycopersicume0
- Interactor
- R. reniformis
Rotylenchulus reniformise0pest - Second interactor
- BSte0biocontrol_agent
- Outcome
- systemic resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BSt could induce systemic resistance in tomato against R. reniformis”
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- positive
- positive
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See all 23 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.