Abstract
Abstract Plant‐growth‐promoting (PGP) endophytic bacteria are beneficial microorganisms that can help plants withstand biotic stress caused by fungal phytopathogens. In the present study, 78 endophytic bacterial isolates were isolated from chilli ( Capsicum annuum L.). A potent isolate with several PGP attributes and better inhibition against Agroathelia rolfsii was selected and identified as Bacillus amyloliquefaciens using 16S rDNA homologies. Phosphate solubilization (65.9 μg ml −1 ), nitrogen fixation, production of IAA (9.77 to 24.45 μg ml −1 ), ammonia, ACC deaminase, siderophore, and hydrolytic enzymes were among the PGP traits shown by the strain SS_CR10. Furthermore, the strain demonstrated the ability to colonize roots. It significantly improved the plant's developmental traits, such as fresh and dry weight, photosynthetic pigments, and root and shoot length. LC–MS analysis and PCR amplification of lipopeptide genes also showed that surfactin, iturin, and bacilysin lipopeptides were present. Following treatments with lipopeptide extract and bacterial suspension, A. rolfsii mycelia showed severe deformation and cell death, as seen by live dead staining by fluorescent microscopy and scanning electron microscopy (SEM). Finally, the upregulation of defense‐related genes CaPR 1, CaPR 2, and CaPR 4 after bacterial treatment confirmed the induction of systemic resistance. In conclusion, this study shows how strain SS_CR10 might be useful for promoting plant growth in chilli and controlling A. rolfsii in an eco‐friendly way, which would protect the health of the soil.
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Claims 11
Claim · model-written summary
A chilli isolate with growth promoting traits and inhibition of A. rolfsii was identified as Bacillus amyloliquefaciens.
- Taxon
- chillie1
- Interactor
- Agroathelia rolfsii
Agroathelia rolfsiie0pathogen - Second interactor
- Bacillus amyloliquefaciens
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Bacillus amyloliquefaciense0biocontrol_agent - Outcome
- better inhibition against Agroathelia rolfsiie0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A potent isolate with several PGP attributes and better inhibition against Agroathelia rolfsii was selected and identified as Bacillus amyloliquefaciens using 16S rDNA homologies.”
e1“isolated from chilli ( Capsicum annuum L.).”
Claim · model-written summary
SS_CR10 solubilized phosphate at the reported level.
- Taxon
- chillie1
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- Phosphate solubilizatione0
- Value
- 65.9 μg ml −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate solubilization (65.9 μg ml −1 ), nitrogen fixation, production of IAA (9.77 to 24.45 μg ml −1 ), ammonia, ACC deaminase, siderophore, and hydrolytic enzymes were among the PGP traits shown by the strain SS_CR10.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
SS_CR10 produced IAA at the reported range.
- Taxon
- chillie1
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- production of IAAe0
- Value
- 9.77 to 24.45 μg ml −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“production of IAA (9.77 to 24.45 μg ml −1 )”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
SS_CR10 showed nitrogen fixation and production of ammonia and siderophore.
- Taxon
- chillie1
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- nitrogen fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen fixation, production of IAA (9.77 to 24.45 μg ml −1 ), ammonia, ACC deaminase, siderophore, and hydrolytic enzymes were among the PGP traits shown by the strain SS_CR10.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
The strain colonized chilli roots.
- Taxon
- chillie1
- Organ / stage
- rootse0
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- colonize rootse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the strain demonstrated the ability to colonize roots.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
The strain significantly improved fresh and dry weight and shoot and root length.
- Taxon
- chillie1
- Treatment
- Bacillus amyloliquefaciense2
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- fresh and dry weighte0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It significantly improved the plant's developmental traits, such as fresh and dry weight, photosynthetic pigments, and root and shoot length.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
The strain significantly improved photosynthetic pigments.
- Taxon
- chillie1
- Treatment
- Bacillus amyloliquefaciense2
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- photosynthetic pigmentse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It significantly improved the plant's developmental traits, such as fresh and dry weight, photosynthetic pigments, and root and shoot length.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
The strain contained surfactin, iturin and bacilysin lipopeptides.
- Taxon
- chillie1
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Outcome
- surfactin, iturin, and bacilysin lipopeptides were presente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“surfactin, iturin, and bacilysin lipopeptides were present.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
Lipopeptide extract deformed and killed A. rolfsii mycelia.
- Taxon
- chillie1
- Treatment
- lipopeptide extracte0
- Interactor
- A. rolfsiiAgroathelia rolfsiie0pathogen
- Outcome
- A. rolfsii mycelia showed severe deformation and cell deathe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following treatments with lipopeptide extract and bacterial suspension, A. rolfsii mycelia showed severe deformation and cell death”
e1“isolated from chilli ( Capsicum annuum L.).”
Claim · model-written summary
Bacterial suspension deformed and killed A. rolfsii mycelia.
- Taxon
- chillie1
- Treatment
- bacterial suspensione0
- Interactor
- A. rolfsiiAgroathelia rolfsiie0pathogen
- Second interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2biocontrol_agent
- Outcome
- A. rolfsii mycelia showed severe deformation and cell deathe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following treatments with lipopeptide extract and bacterial suspension, A. rolfsii mycelia showed severe deformation and cell death”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
Claim · model-written summary
Bacterial treatment upregulated three chilli defense genes.
- Taxon
- chillie1
- Treatment
- bacterial treatmente0
- Interactor
- Bacillus amyloliquefaciensBacillus amyloliquefaciense2symbiont
- Gene
- CaPR 1, CaPR 2, and CaPR 4e0
- Outcome
- defense‐related genese0
- Direction
- upregulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upregulation of defense‐related genes CaPR 1, CaPR 2, and CaPR 4 after bacterial treatment confirmed the induction of systemic resistance.”
e1“isolated from chilli ( Capsicum annuum L.).”
e2“identified as Bacillus amyloliquefaciens”
The same questions in other papers
Bacillus amyloliquefaciens · growth · Capsicum (peppers)Results agree
1 paper in the same direction as this paper
- positive
botanical · Agroathelia rolfsii · Capsicum (peppers)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.