Abstract
Brown spot disease is one of the most common diseases in faba bean.Many studies have focused on finding natural compounds and biological control agents that can help combat these diseases.This study focused on the study of the effectiveness of decomposed crude eucalyptus leaf extract and Pseudomonas species against brown spot disease in faba bean caused by Botrytis fabae Sard.A field study was carried out at Toshka Research Station, Desert Research Center, Aswan Governorate, Egypt, during the 2022 winter growing season.In this respect, eleven Pseudomonas isolates were evaluated for their potential to suppress the phytopathogenic fungus B. fabae.The most effective isolates were identified using 16S rRNA nucleotide sequence.Molecular identification data revealed that selected isolates are blast identical to P. stutzeri with 95% and P. fulva with 100%.The decomposed extract of eucalyptus leaves reduced the mycelial growth of B. fabae in a concentration-dependent manner.The HPLC profile of phenolic compounds in the fermented extract revealed that both hydroxybenzoic acids and hydroxycinnamic acids are more abundant and pyrocatechol was the major phenolic compound in the fermented extract.Under field conditions, the least severity was recorded from treated plants with bioagents in combination with fermented eucalyptus leaf extract in the form of soil and spray applications.Treating faba bean plants with plant extracts and microbioagents improved most tested growth criteria, plant productivity and seed yield.
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Claims 8
Claim · model-written summary
Selected Pseudomonas isolates were identified as P. stutzeri with 95% identity.
- Taxon
- Faba Bean
Vicia fabat0 - Interactor
- P. stutzerie0biocontrol_agent
- Outcome
- selected isolates are blast identical to P. stutzerie0
- Value
- 95%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molecular identification data revealed that selected isolates are blast identical to P. stutzeri with 95% and P. fulva with 100%”
t0“Faba Bean”
Claim · model-written summary
Selected Pseudomonas isolates were identified as P. fulva with 100% identity.
- Taxon
- Faba BeanVicia fabat0
- Interactor
- P. fulvaPseudomonas fulvae0biocontrol_agent
- Outcome
- P. fulva with 100%e0
- Value
- 100%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molecular identification data revealed that selected isolates are blast identical to P. stutzeri with 95% and P. fulva with 100%”
t0“Faba Bean”
Claim · model-written summary
Decomposed eucalyptus leaf extract reduced B. fabae mycelial growth in a concentration-dependent manner.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- decomposed extract of eucalyptus leavese0
- Interactor
- B. fabae
Botrytis fabaee0pathogen - Outcome
- mycelial growth of B. fabaee0
- Direction
- reducede0
- Qualifier
- concentration-dependent mannere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The decomposed extract of eucalyptus leaves reduced the mycelial growth of B. fabae in a concentration-dependent manner”
t0“Faba Bean”
Claim · model-written summary
Hydroxybenzoic and hydroxycinnamic acids were more abundant in the fermented extract.
- Taxon
- Faba BeanVicia fabat0
- Outcome
- hydroxybenzoic acids and hydroxycinnamic acidse0
- Direction
- more abundante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both hydroxybenzoic acids and hydroxycinnamic acids are more abundant”
t0“Faba Bean”
Claim · model-written summary
Pyrocatechol was the major phenolic compound in the fermented extract.
- Taxon
- Faba BeanVicia fabat0
- Outcome
- pyrocatechol was the major phenolic compounde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pyrocatechol was the major phenolic compound in the fermented extract”
t0“Faba Bean”
Claim · model-written summary
Combined bioagents and fermented eucalyptus extract gave the least brown spot severity in field plants.
- Taxon
- Faba BeanVicia fabat0
- Treatment
- bioagents in combination with fermented eucalyptus leaf extracte0
- Outcome
- severitye0
- Direction
- leaste0
- Qualifier
- soil and spray applicationse0
- Setting
- field conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under field conditions, the least severity was recorded from treated plants with bioagents in combination with fermented eucalyptus leaf extract in the form of soil and spray applications”
t0“Faba Bean”
Claim · model-written summary
Plant extracts and microbial agents improved most tested growth criteria in faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- plant extracts and microbioagentse0
- Outcome
- growth criteriae0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating faba bean plants with plant extracts and microbioagents improved most tested growth criteria, plant productivity and seed yield”
Claim · model-written summary
Plant extracts and microbial agents improved plant productivity and seed yield in faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- plant extracts and microbioagentse0
- Outcome
- plant productivity and seed yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating faba bean plants with plant extracts and microbioagents improved most tested growth criteria, plant productivity and seed yield”
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