Abstract
Common bean (Phaseolus vulgaris L.) is one of the most important crops in human food production. The occurrence of diseases, such as white mold, caused by Sclerotinia sclerotiorum can limit the production of this legume. The use of Trichoderma has become an important strategy in the suppression of this disease. The aim of the present study was to evaluate the effect of volatile organic compounds (VOCs) emitted by Trichoderma azevedoi CEN1241 in five different growth periods on the severity of white mold in common bean. The in vitro assays were carried out in double-plate and split-plate, and the in vivo assays, through the exposure of the mycelia of S. sclerotiorum to the VOCs of T. azevedoi CEN1241 and subsequent inoculation in bean plants. Chemical analysis by gas chromatography coupled to mass spectrometry detected 37 VOCs produced by T. azevedoi CEN1241, covering six major chemical classes. The profile of VOCs produced by T. azevedoi CEN1241 varied according to colony age and was shown to be related to the ability of the biocontrol agent to suppress S. sclerotiorum. T. azevedoi CEN1241 VOCs reduced the size of S. sclerotiorum lesions on bean fragments in vitro and reduced disease severity in a greenhouse. This study demonstrated in a more applied way that the mechanism of antibiosis through the production of volatile compounds exerted by Trichoderma can complement other mechanisms, such as parasitism and competition, thus contributing to a better efficiency in the control of white mold in bean plants.
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Claims 6
Claim · model-written summary
Trichoderma azevedoi CEN1241 produced 37 VOCs in six chemical classes.
- Taxon
- beant0
- Interactor
- T. azevedoi CEN1241Trichoderma azevedoie0biocontrol_agent
- Outcome
- 37 VOCse0
- Value
- 37 VOCse0
Not reportedDirection
Verbatim
e0“Chemical analysis by gas chromatography coupled to mass spectrometry detected 37 VOCs produced by T. azevedoi CEN1241, covering six major chemical classes.”
t0“Bean Plants”
Claim · model-written summary
The VOC profile of T. azevedoi CEN1241 varied with colony age.
Verbatim
e0“The profile of VOCs produced by T. azevedoi CEN1241 varied according to colony age and was shown to be related to the ability of the biocontrol agent to suppress S. sclerotiorum.”
t0“Bean Plants”
Claim · model-written summary
The VOC profile was related to suppression of S. sclerotiorum.
- Taxon
- beant0
- Interactor
- S. sclerotiorum
Sclerotinia sclerotiorume0pathogen - Outcome
- ability of the biocontrol agent to suppress S. sclerotiorume0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The profile of VOCs produced by T. azevedoi CEN1241 varied according to colony age and was shown to be related to the ability of the biocontrol agent to suppress S. sclerotiorum.”
t0“Bean Plants”
Claim · model-written summary
T. azevedoi VOCs reduced S. sclerotiorum lesion size on bean fragments in vitro.
- Taxon
- beane0
- Treatment
- T. azevedoi CEN1241 VOCse0
- Interactor
- S. sclerotiorumSclerotinia sclerotiorume0pathogen
- Outcome
- size of S. sclerotiorum lesionse0
- Direction
- reducede0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. azevedoi CEN1241 VOCs reduced the size of S. sclerotiorum lesions on bean fragments in vitro”
Claim · model-written summary
T. azevedoi VOCs reduced white mold severity in a greenhouse.
- Taxon
- beane0
- Treatment
- T. azevedoi CEN1241 VOCse0
- Interactor
- S. sclerotiorumSclerotinia sclerotiorume0pathogen
- Outcome
- disease severitye0
- Direction
- reducede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. azevedoi CEN1241 VOCs reduced the size of S. sclerotiorum lesions on bean fragments in vitro and reduced disease severity in a greenhouse.”
Claim · model-written summary
The authors conclude that volatile antibiosis can complement parasitism and competition for white mold control.
- Taxon
- beane0
- Interactor
- Trichoderma
Trichodermae0biocontrol_agent - Outcome
- control of white molde0
- Qualifier
- parasitism and competitione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mechanism of antibiosis through the production of volatile compounds exerted by Trichoderma can complement other mechanisms, such as parasitism and competition, thus contributing to a better efficiency in the control of white mold in bean plants.”
The same questions in other papers
volatile organic compound · Sclerotinia sclerotiorum · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
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.