Abstract
[[abstract]]BACKGROUND: Bacillus cereus C1L is a plant growth-promoting rhizobacterium and can elicit induced systemic resistance (ISR) in plants against necrotrophic pathogens. However, little is known about ISR elicitors produced by B. cereus C1L, and no ISR elicitor has been identified and characterised. Therefore, the objective of this study is to identify volatile ISR elicitor(s) produced by B. cereus C1L. RESULTS: The volatile metabolites produced by B. cereus C1L were extracted, separated and identified by solid-phase microextraction, gas chromatography and mass spectrometry. Dimethyl disulfide (DMDS) was the only separated metabolite being determined. Afterwards, application of DMDS by means of soil drench significantly protected tobacco and corn plants against Botrytis cinerea and Cochliobolus heterostrophus, respectively, under greenhouse conditions. The results reveal that DMDS could play an important role in ISR by B. cereus C1L. CONCLUSION: This is the first report of DMDS as an elicitor produced by an ISR-eliciting B. cereus strain and its ability to suppress plant fungal diseases under greenhouse conditions. It is suggested that DMDS has potential for practical use in controlling plant foliar diseases besides soil fumigation. Copyright (c) 2012 Society of Chemical Industry
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Claims 4
Claim · model-written summary
Soil drench application of DMDS significantly protected tobacco plants against Botrytis cinerea under greenhouse conditions.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- application of DMDS by means of soil drenche1
- Interactor
- Botrytis cinerea
Botrytis cinereae1pathogen - Outcome
- Botrytis cinereae1
- Direction
- significantly protectede1
- Setting
- under greenhouse conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“application of DMDS by means of soil drench significantly protected tobacco and corn plants against Botrytis cinerea and Cochliobolus heterostrophus, respectively, under greenhouse conditions”
Claim · model-written summary
Soil drench application of DMDS significantly protected corn plants against Cochliobolus heterostrophus under greenhouse conditions.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- application of DMDS by means of soil drenche1
- Interactor
- Cochliobolus heterostrophus
Bipolaris maydise1pathogen - Outcome
- Cochliobolus heterostrophuse1
- Direction
- significantly protectede1
- Setting
- under greenhouse conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“application of DMDS by means of soil drench significantly protected tobacco and corn plants against Botrytis cinerea and Cochliobolus heterostrophus, respectively, under greenhouse conditions”
Claim · model-written summary
Dimethyl disulfide was the only separated metabolite determined from the volatiles of Bacillus cereus C1L.
- Taxon
- plantsViridiplantaee0
- Interactor
- Bacillus cereus C1L
Bacillus cereus C1Le0biocontrol_agent - Outcome
- separated metabolitee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacillus cereus C1L is a plant growth-promoting rhizobacterium and can elicit induced systemic resistance (ISR) in plants against necrotrophic pathogens”
e2“Dimethyl disulfide (DMDS) was the only separated metabolite being determined”
Claim · model-written summary
DMDS is suggested to have potential for practical use in controlling plant foliar diseases besides soil fumigation.
Verbatim
e3“It is suggested that DMDS has potential for practical use in controlling plant foliar diseases besides soil fumigation”
The same questions in other papers
dimethyl disulfide · Botrytis cinerea · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
dimethyl disulfide · Bipolaris maydis · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
application · Botrytis cinerea · Nicotiana tabacum (tobacco)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
application · Bipolaris maydis · Zea mays (maize)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.