Abstract
For the eco-friendly management of the Alternaria leaf blight disease, bacterial and fungal biocontrol agents isolated from the rhizosphere of Anthurium were compared for their efficacy based on the mechanisms of biocontrol. The effective isolates were formulated and tested against leaf blight of anthurium. Seven isolates of fluorescent pseudomonads, 6 isolates of Bacillus spp. and 4 isolates of Trichoderma viride was tested against Alternaria alternata. Among the biocontrol agents tested, isolates Pf1, BsM3 and Tv2 was found to be highly antagonistic to A. alternata in vitro. Among 13 isolates, Pf1, BsM3 and Tv2 showed the strongest in vitro antagonism. Molecular characterisation confirmed the identity of rhizobacterial isolates. Isolates of Pseudomonas fluorescens, Bacillus subtilis and T. viride produced siderophore in vitro. The isolates CFP1 and Pf1 were found to produce salicylic acid (SA), indole-3 acetic acid (IAA) and ammonia. In pot and field experiments, soil application of coir pith-vermicompost formulation of Pf1 (250 g/plant) followed by 3 foliar sprays of the liquid formulation (0.2 %) reduced disease severity by approximately 55 % (pot culture) and 48 % (field) relative to the control. The results demonstrate the potential of Pf1-based formulations as effective and eco-friendly options for managing Alternaria leaf blight in Anthurium.
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Claims 12
Claim · model-written summary
Pf1 showed strong in vitro antagonism against A. alternata.
- Material
- Pf1e0
- Interactor
- Alternaria alternata
.jpg?width=60)
Alternaria alternatae1pathogen - Outcome
- in vitro antagonisme0
AnthuriumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Pf1, BsM3 and Tv2 showed the strongest in vitro antagonism”
e1“against Alternaria alternata”
e2“leaf blight disease in Anthurium”
Claim · model-written summary
BsM3 showed strong in vitro antagonism against A. alternata.
- Material
- BsM3e0
- Interactor
- Alternaria alternataAlternaria alternatae1pathogen
- Outcome
- in vitro antagonisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pf1, BsM3 and Tv2 showed the strongest in vitro antagonism”
e1“against Alternaria alternata”
e2“leaf blight disease in Anthurium”
Claim · model-written summary
Tv2 showed strong in vitro antagonism against A. alternata.
- Material
- Tv2e0
- Interactor
- Alternaria alternataAlternaria alternatae1pathogen
- Outcome
- in vitro antagonisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pf1, BsM3 and Tv2 showed the strongest in vitro antagonism”
e1“against Alternaria alternata”
e2“leaf blight disease in Anthurium”
Claim · model-written summary
Molecular characterization confirmed the identity of rhizobacterial isolates.
- Outcome
- identity of rhizobacterial isolatese0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Molecular characterisation confirmed the identity of rhizobacterial isolates”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
Pseudomonas fluorescens isolates produced siderophore in vitro.
- Interactor
- Pseudomonas fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- produced siderophoree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“Isolates of Pseudomonas fluorescens, Bacillus subtilis and T. viride produced siderophore in vitro”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
Bacillus subtilis isolates produced siderophore in vitro.
- Interactor
- Bacillus subtilis
Bacillus subtilise0biocontrol_agent - Outcome
- produced siderophoree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolates of Pseudomonas fluorescens, Bacillus subtilis and T. viride produced siderophore in vitro”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
T. viride isolates produced siderophore in vitro.
- Interactor
- T. viride
Trichoderma viridee0biocontrol_agent - Outcome
- produced siderophoree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolates of Pseudomonas fluorescens, Bacillus subtilis and T. viride produced siderophore in vitro”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
CFP1 produced salicylic acid, indole-3 acetic acid and ammonia.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolates CFP1 and Pf1 were found to produce salicylic acid (SA), indole-3 acetic acid (IAA) and ammonia”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
Pf1 produced salicylic acid, indole-3 acetic acid and ammonia.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolates CFP1 and Pf1 were found to produce salicylic acid (SA), indole-3 acetic acid (IAA) and ammonia”
e1“leaf blight disease in Anthurium”
Claim · model-written summary
Pf1 soil and foliar formulations reduced Anthurium blight severity approximately 55% in pot culture.
- Treatment
- soil application of coir pith-vermicompost formulation of Pf1 (250 g/plant) followed by 3 foliar sprays of the liquid formulation (0.2 %)e0
- Interactor
- Alternaria
Alternariae2pathogen - Second interactor
- Pf1e0biocontrol_agent
- Outcome
- disease severitye0
- Direction
- reducede0
- Value
- approximately 55 %e0
- Comparator
- the controle0
- Setting
- pot culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application of coir pith-vermicompost formulation of Pf1 (250 g/plant) followed by 3 foliar sprays of the liquid formulation (0.2 %) reduced disease severity by approximately 55 % (pot culture) and 48 % (field) relative to the control”
e1“leaf blight disease in Anthurium”
e2“Alternaria leaf blight disease”
Claim · model-written summary
Pf1 soil and foliar formulations reduced Anthurium blight severity 48% in the field.
- Treatment
- soil application of coir pith-vermicompost formulation of Pf1 (250 g/plant) followed by 3 foliar sprays of the liquid formulation (0.2 %)e0
- Interactor
- AlternariaAlternariae2pathogen
- Second interactor
- Pf1e0biocontrol_agent
- Outcome
- disease severitye0
- Direction
- reducede0
- Value
- 48 %e0
- Comparator
- the controle0
- Setting
- fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil application of coir pith-vermicompost formulation of Pf1 (250 g/plant) followed by 3 foliar sprays of the liquid formulation (0.2 %) reduced disease severity by approximately 55 % (pot culture) and 48 % (field) relative to the control”
e1“leaf blight disease in Anthurium”
e2“Alternaria leaf blight disease”
Claim · model-written summary
The authors propose Pf1 formulations for eco-friendly control of Anthurium leaf blight.
- Interactor
- AlternariaAlternariae0pathogen
- Outcome
- managing Alternaria leaf blighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pf1-based formulations as effective and eco-friendly options for managing Alternaria leaf blight in Anthurium”