Paper · 2018 · DOAJ (DOAJ: Directory of Open Access Journals)

The effect of biocontrol agents consortia against Rhizoctonia root rot of common bean Phaseolus vulgaris

Ali Nasir Hussein; Saeed Abbasi; Rouhallah Sharifi; et al.

12
claims
23
verbatim quotes
15
citations
1
research areas
✓
Open access · cc-by-sa

Abstract

In recent years, biological control has become a promising and ecologically friendly alternative to chemical control in the management of soil-borne plant diseases and several biological control agents have been introduced as potential bio-fungicides. The aim of this study was to investigate different biological control agent consortia against Rhizoctonia solani root rot disease of common bean. Bacillus pumilus INR7, Trichoderma harzianum and Rhizophagus intraradices were used individually or in combination. There were two application methods: simultaneous application of biocontrol agents with the plant pathogen, and pre-inoculation of biocontrol agents one month before the pathogen. Treatments containing B.pumilus INR7 were the best treatments for suppression of the disease in the simultaneous application method, where B. pumilus INR7 + T. harzianumreduced the disease up to 54%. However, in pre-inoculation method T. harzianum alone was the only treatment that reduced disease severity up to 49% compared to the infected control; other treatments did not haveany significant effect on disease severity. In current study, combination of T. harzianum and R. intraradices was unable to decrease disease severity and improve plant growth. This phenomenon was common in both simultaneous and pre-inoculation experiments. However, results showed that B. pumilus INR7 and R. intraradices were compatible with each other. Their combination not only decreased the disease, but also improved the dry weight of common bean in both application methods. Our results revealed that B. pumilus INR7 had positive interaction with T. harzianum. This combination increased their ability to suppress root rot disease and improve plant health, significantly. Overall, combinations of biocontrol agents have good potential to be applied in modern agriculture, but such combinations need to be checkedin advance for their compatibility in greenhouse and field experiments.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B. pumilus INR7 plus T. harzianum reduced common bean root rot disease by up to 54% when applied simultaneously with the pathogen.

Taxon
common beanPhaseolus vulgarise0
Treatment
B. pumilus INR7 + T. harzianume1
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
B. pumilus INR7Bacillus pumiluse1biocontrol_agent
Outcome
diseasee1
Direction
reducede1
Value
54%e1
Qualifier
in the simultaneous application methode1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e1

“Treatments containing B.pumilus INR7 were the best treatments for suppression of the disease in the simultaneous application method, where B. pumilus INR7 + T. harzianumreduced the disease up to 54%”

✓ located verbatim in the source · abstract, characters 693–891 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatments containing B. pumilus INR7 were the best for suppressing the disease in the simultaneous application method.

Taxon
common beanPhaseolus vulgarise0
Treatment
Treatments containing B.pumilus INR7e1
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Outcome
suppression of the diseasee1
Direction
beste1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e1

“Treatments containing B.pumilus INR7 were the best treatments for suppression of the disease in the simultaneous application method, where B. pumilus INR7 + T. harzianumreduced the disease up to 54%”

✓ located verbatim in the source · abstract, characters 693–891 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the pre-inoculation method, T. harzianum alone reduced disease severity by up to 49% compared with the infected control.

Taxon
common beanPhaseolus vulgarise0
Treatment
T. harzianum alonee2
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
T. harzianumTrichoderma harzianume2biocontrol_agent
Outcome
disease severitye2
Direction
reducede2
Value
49%e2
Qualifier
pre-inoculation methode2
Comparator
infected controle2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗
Trichoderma harzianum
Trichoderma harzianum · Second interactorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e2

“However, in pre-inoculation method T. harzianum alone was the only treatment that reduced disease severity up to 49% compared to the infected control; other treatments did not haveany significant effect on disease severity”

✓ located verbatim in the source · abstract, characters 893–1115 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The other treatments in the pre-inoculation method had no significant effect on disease severity.

Taxon
common beanPhaseolus vulgarise0
Treatment
other treatmentse2
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Outcome
disease severitye2
Direction
no_changeinferrede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e2

“However, in pre-inoculation method T. harzianum alone was the only treatment that reduced disease severity up to 49% compared to the infected control; other treatments did not haveany significant effect on disease severity”

✓ located verbatim in the source · abstract, characters 893–1115 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The combination of T. harzianum and R. intraradices was unable to decrease disease severity in common bean.

Taxon
common beanPhaseolus vulgarise0
Treatment
combination of T. harzianum and R. intraradicese3
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
R. intraradicesRhizophagus intraradicese3symbiont
Outcome
disease severitye3
Direction
unable to decreasee3
Qualifier
common in both simultaneous and pre-inoculation experimentse3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e3

“In current study, combination of T. harzianum and R. intraradices was unable to decrease disease severity and improve plant growth. This phenomenon was common in both simultaneous and pre-inoculation experiments”

✓ located verbatim in the source · abstract, characters 1117–1328 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The combination of T. harzianum and R. intraradices did not improve common bean plant growth.

Taxon
common beanPhaseolus vulgarise0
Treatment
combination of T. harzianum and R. intraradicese3
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
R. intraradicesRhizophagus intraradicese3symbiont
Outcome
plant growthe3
Direction
no_changeinferrede3
Qualifier
common in both simultaneous and pre-inoculation experimentse3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e3

“In current study, combination of T. harzianum and R. intraradices was unable to decrease disease severity and improve plant growth. This phenomenon was common in both simultaneous and pre-inoculation experiments”

✓ located verbatim in the source · abstract, characters 1117–1328 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

B. pumilus INR7 and R. intraradices were compatible with each other.

Taxon
common beanPhaseolus vulgarise0
Interactor
B. pumilus INR7Bacillus pumiluse4biocontrol_agent
Second interactor
R. intraradicesRhizophagus intraradicese4symbiont
Outcome
compatible with each othere4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e4

“B. pumilus INR7 and R. intraradices were compatible with each other. Their combination not only decreased the disease, but also improved the dry weight of common bean in both application methods”

✓ located verbatim in the source · abstract, characters 1359–1553 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combination of B. pumilus INR7 and R. intraradices decreased common bean root rot disease.

Taxon
common beanPhaseolus vulgarise0
Treatment
B. pumilus INR7 and R. intraradicese4
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
B. pumilus INR7Bacillus pumiluse4biocontrol_agent
Outcome
diseasee4
Direction
decreasede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e4

“B. pumilus INR7 and R. intraradices were compatible with each other. Their combination not only decreased the disease, but also improved the dry weight of common bean in both application methods”

✓ located verbatim in the source · abstract, characters 1359–1553 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combination of B. pumilus INR7 and R. intraradices improved common bean dry weight in both application methods.

Taxon
common beanPhaseolus vulgarise4
Treatment
B. pumilus INR7 and R. intraradicese4
Outcome
dry weighte4
Direction
improvede4
Qualifier
in both application methodse4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e4

“B. pumilus INR7 and R. intraradices were compatible with each other. Their combination not only decreased the disease, but also improved the dry weight of common bean in both application methods”

✓ located verbatim in the source · abstract, characters 1359–1553 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

B. pumilus INR7 had a positive interaction with T. harzianum that increased their ability to suppress root rot disease.

Taxon
common beanPhaseolus vulgarise0
Treatment
This combinatione5
Interactor
Rhizoctonia solaniRhizoctonia solanie0pathogen
Second interactor
T. harzianumTrichoderma harzianume5biocontrol_agent
Outcome
ability to suppress root rot diseasee5
Direction
increasede5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizoctonia solani
Rhizoctonia solani · Interactoranonimowy, niektóre prawa zastrzeżone (CC BY) · CC BY 4.0 · iNaturalist ↗
Trichoderma harzianum
Trichoderma harzianum · Second interactorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e5

“Our results revealed that B. pumilus INR7 had positive interaction with T. harzianum. This combination increased their ability to suppress root rot disease and improve plant health, significantly”

✓ located verbatim in the source · abstract, characters 1555–1750 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The B. pumilus INR7 and T. harzianum combination improved plant health.

Taxon
common beanPhaseolus vulgarise0
Treatment
This combinatione5
Outcome
plant healthe5
Direction
improvee5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e5

“Our results revealed that B. pumilus INR7 had positive interaction with T. harzianum. This combination increased their ability to suppress root rot disease and improve plant health, significantly”

✓ located verbatim in the source · abstract, characters 1555–1750 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Combinations of biocontrol agents should be checked in advance for compatibility in greenhouse and field experiments before use.

Taxon
common beanPhaseolus vulgarise0
Outcome
need to be checkedin advancee6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“against Rhizoctonia solani root rot disease of common bean”

✓ located verbatim in the source · abstract, characters 338–396 · show in text ↑
e6

“Overall, combinations of biocontrol agents have good potential to be applied in modern agriculture, but such combinations need to be checkedin advance for their compatibility in greenhouse and field experiments”

✓ located verbatim in the source · abstract, characters 1752–1962 · show in text ↑

Rhizophagus intraradices · growth · Phaseolus vulgaris (common bean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Trichoderma harzianum · Rhizoctonia solani · Phaseolus vulgaris (common bean)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 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.