Abstract
Abstract Throughout the world, charcoal rot, caused by Macrophomina phaseolina, is one of the most destructive and widespread diseases of crop plants such as soybean. In this study, the biological control capability of 11 Trichoderma spp. isolates against M. phaseolina was investigated using screening tests. Among all the tested Trichoderma spp. isolates, inhibition varied from 20.22 to 58.67% in dual culture tests. Dual culture, volatile and non-volatile tests revealed that two isolates of Trichoderma harzianum (including the isolates T7 and T14) best inhibited the growth of M. phaseolina in vitro. Therefore, these isolates were selected for biocontrol of M. phaseolina in vivo. The results of greenhouse experiments revealed that disease severity in the seed treatment with T. harzianum isolates was significantly lower than that of the soil treatment. In most of the cases, though, soil treatment with T. harzianum resulted in higher plant growth parameters, such as root and shoot weight. The effects of T. harzianum isolates on the activity of peroxidase enzyme and phenolic contents of the soybean root in the presence and absence of M. phaseolina were determined in greenhouse conditions. Our results suggested that a part of the inhibitory effect of T. harzianum isolates on soybean charcoal rot might be related to the indirect influence on M. phaseolina. Plant defense responses were activated as an elicitor in addition to the direct effect on the pathogen growth.
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Claims 5
Claim · model-written summary
Trichoderma isolate inhibition of M. phaseolina ranged from 20.22 to 58.67% in dual culture.
- Taxon
- soybean
Glycine maxt0 - Interactor
- Macrophomina phaseolina
Macrophomina phaseolinat0pathogen - Outcome
- inhibitione0
- Value
- 20.22 to 58.67%e0
Not reportedSecond interactorSecond interactor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibition varied from 20.22 to 58.67% in dual culture tests.”
t0“soybean charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
T7 and T14 were the best inhibitors of pathogen growth in vitro across three tests.
- Taxon
- soybeanGlycine maxt0
- Material
- T7 and T14e0
- Interactor
- M. phaseolinaMacrophomina phaseolinae0pathogen
- Second interactor
- Trichoderma harzianum
Trichoderma harzianume0biocontrol_agent - Outcome
- growth of M. phaseolinae0
- Direction
- best inhibitede0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two isolates of Trichoderma harzianum (including the isolates T7 and T14) best inhibited the growth of M. phaseolina in vitro.”
t0“soybean”
Claim · model-written summary
Seed treatment with T. harzianum gave significantly lower disease severity than soil treatment.
- Taxon
- soybeanGlycine maxt0
- Treatment
- seed treatment with T. harzianum isolatese0
- Interactor
- Macrophomina phaseolinaMacrophomina phaseolinat0pathogen
- Second interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- disease severitye0
- Direction
- lowere0
- Comparator
- soil treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“disease severity in the seed treatment with T. harzianum isolates was significantly lower than that of the soil treatment.”
t0“soybean charcoal rot caused by Macrophomina phaseolina”
Claim · model-written summary
Soil application of T. harzianum produced greater root and shoot weight in most cases.
- Taxon
- soybeanGlycine maxt0
- Treatment
- soil treatment with T. harzianume0
- Interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- root and shoot weighte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil treatment with T. harzianum resulted in higher plant growth parameters, such as root and shoot weight.”
t0“soybean”
Claim · model-written summary
Authors suggest indirect effects and activated plant defenses contributed to charcoal rot inhibition.
- Taxon
- soybeanGlycine maxe0
- Interactor
- M. phaseolinaMacrophomina phaseolinae0pathogen
- Second interactor
- T. harzianumTrichoderma harzianume0biocontrol_agent
- Outcome
- inhibitory effect of T. harzianum isolates on soybean charcoal rote0
- Qualifier
- Plant defense responses were activatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a part of the inhibitory effect of T. harzianum isolates on soybean charcoal rot might be related to the indirect influence on M. phaseolina. Plant defense responses were activated as an elicitor in addition to the direct effect on the pathogen growth.”
The same questions in other papers
Trichoderma harzianum · growth · Glycine max (soybean)Positive and negative results
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- negative
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See all 18 papers →Trichoderma harzianum · Macrophomina phaseolina · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
seed treatment · Macrophomina phaseolina · Glycine max (soybean)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.