Abstract
Plant growth promoting rhizobacteria (PGPR) are known to enhance plant growth and healthy by direct or indirect mechanisms. Plant healthy could be increased by controlling a range of plant pathogens, including bacteria, fungi, and nematodes. The use of PGPR, recently named plant-probiotics, to control plant-pathogens is receiving increasing attention, as they may represent an alternative approach to chemical pesticides. Tomato root rot, caused by Fusarium oxysporum, is an economically important disease. In the present study, the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum and enhanced plant growth and healthy. Both in vitro and in vivo experiments confirmed the efficacy of this strain as an excellent biocontrol agent. When it is applied as soil drench, it significantly reduced wilt incidence by 94% with a plant-growth promotion and biocontrol efficiency of 180 and 151%, respectively. In general, application of the strain or its extracellular metabolites increased plant growth parameters. The strain produced mycolytic enzymes viz. chitinase, chitosanase, s-1,3glucanase as well as cellulaces, proteases and potential bioactive compound(s). These results suggest that the strain may has potential to be considered as a potent biocontrol agent, effective against several plant diseases, pest insects, and plant parasitic nematodes due to its antagonistic characteristics and multiple plant-growth promoting properties.
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Claims 10
Claim · model-written summary
Bacillus alvei NRC-14 suppressed Fusarium oxysporum fungal growth.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- Bacillus alvei NRC-14e0
- Interactor
- Fusarium oxysporum
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Second interactor
- Bacillus alvei NRC-14Paenibacillus alveie0biocontrol_agent
- Outcome
- fungal growthe0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=500)
Verbatim
e0“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
Bacillus alvei NRC-14 prevented tomato root rot caused by Fusarium oxysporum.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Bacillus alvei NRC-14e0
- Interactor
- Fusarium oxysporumFusarium oxysporume0pathogen
- Second interactor
- Bacillus alvei NRC-14Paenibacillus alveie0biocontrol_agent
- Outcome
- root-rot of tomato plantse0
- Direction
- preventede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
Soil drenching with the strain reduced tomato wilt incidence by 94%.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- soil drenche0
- Interactor
- Fusarium oxysporumFusarium oxysporume1pathogen
- Second interactor
- Bacillus alvei NRC-14Paenibacillus alveie1biocontrol_agent
- Outcome
- wilt incidencee0
- Direction
- reducede0
- Value
- 94%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When it is applied as soil drench, it significantly reduced wilt incidence by 94%”
e1“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
Soil drenching had 180% plant growth promotion.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- soil drenche1
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie2biocontrol_agent
- Outcome
- plant-growth promotione0
- Value
- 180e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a plant-growth promotion and biocontrol efficiency of 180 and 151%, respectively”
e1“When it is applied as soil drench”
e2“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
The strain had 151% biocontrol efficiency.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie1biocontrol_agent
- Outcome
- biocontrol efficiencye0
- Value
- 151%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a plant-growth promotion and biocontrol efficiency of 180 and 151%, respectively”
e1“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
Application of the strain increased tomato growth parameters.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- the straine0
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie1biocontrol_agent
- Outcome
- plant growth parameterse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of the strain or its extracellular metabolites increased plant growth parameters”
e1“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
Application of extracellular metabolites increased tomato growth parameters.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- its extracellular metabolitese0
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie1biocontrol_agent
- Outcome
- plant growth parameterse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of the strain or its extracellular metabolites increased plant growth parameters”
e1“the strain Bacillus alvei NRC-14 potentially suppressed fungal growth and prevented root-rot of tomato plants caused by Fusarium oxysporum”
Claim · model-written summary
The Bacillus strain produced chitinase, chitosanase, and s-1,3glucanase.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie2biocontrol_agent
- Outcome
- produced mycolytic enzymes viz. chitinase, chitosanase, s-1,3glucanasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strain produced mycolytic enzymes viz. chitinase, chitosanase, s-1,3glucanase”
e1“root-rot of tomato plants caused by Fusarium oxysporum”
e2“the strain Bacillus alvei NRC-14”
Claim · model-written summary
The Bacillus strain also produced cellulaces, proteases and potential bioactive compounds.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie2biocontrol_agent
- Outcome
- cellulaces, proteases and potential bioactive compound(s)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as well as cellulaces, proteases and potential bioactive compound(s)”
e1“root-rot of tomato plants caused by Fusarium oxysporum”
e2“the strain Bacillus alvei NRC-14”
Claim · model-written summary
The authors suggest the strain as a potential biocontrol agent against plant diseases, insects and nematodes.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- Bacillus alvei NRC-14Paenibacillus alveie2biocontrol_agent
- Outcome
- potent biocontrol agent, effective against several plant diseases, pest insects, and plant parasitic nematodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the strain may has potential to be considered as a potent biocontrol agent, effective against several plant diseases, pest insects, and plant parasitic nematodes”
e1“root-rot of tomato plants caused by Fusarium oxysporum”
e2“the strain Bacillus alvei NRC-14”
The same questions in other papers
application · Fusarium oxysporum · Solanum lycopersicum (tomato)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.