Abstract
The biocontrol potential of a new Burkholderia sp strain-V-1 was evaluated under laboratory and greenhouse conditions. Tomato seeds, when treated with the bacterial suspension, showed significant increase in germination percentage, root and shoot length and seedling vigour. The Burkholderia sp strain-V-1 inhibited the mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solani, Rhizoctonia solani and Sclerotium rolfsii under in vitro conditions. A talc-based powder formulation of Burkholderia sp strain-1 was developed and evaluated for its efficacy in the management of tomato soil-borne pathogens under greenhouse conditions. Seed treatment combined with soil application of the talc powder formulation of Burkholderia sp significantly reduced the incidence of damping off, wilt, root rot and Southern stem blight in green house conditions. Bacterial inoculation in plants led to augmentation of phenolic levels and upregulation of activities of defense enzymes including phenyl alanine ammonia lyase (PAL), peroxidase (PO), polyphenol oxidase (PPO), ? 1,3 glucanase and chitinase in leaves and roots of tomato. The increase in phenolic levels and enhanced defense enzyme activities in roots were observed up to 7 days after inoculation.
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Claims 9
Claim · model-written summary
Burkholderia seed treatment significantly increased tomato germination percentage, root and shoot length, and seedling vigour.
- Taxon
- Tomato
Solanum lycopersicume0 - Treatment
- treated with the bacterial suspensione0
- Outcome
- germination percentage, root and shoot length and seedling vigoure0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato seeds, when treated with the bacterial suspension, showed significant increase in germination percentage, root and shoot length and seedling vigour.”
Claim · model-written summary
Burkholderia strain V-1 inhibited Pythium aphanidematum mycelial growth in vitro.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Burkholderia sp strain-V-1e0
- Interactor
- Pythium aphanidematume0pathogen
- Second interactor
- Burkholderia sp strain-V-1e0biocontrol_agent
- Outcome
- mycelial growth of Pythium aphanidematume0
- Direction
- inhibitede0
- Setting
- in vitro conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Burkholderia sp strain-V-1 inhibited the mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solani, Rhizoctonia solani and Sclerotium rolfsii under in vitro conditions.”
t0“tomato”
Claim · model-written summary
Burkholderia strain V-1 inhibited Fusarium oxysporum f. sp solani mycelial growth in vitro.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Burkholderia sp strain-V-1e0
- Interactor
- Fusarium oxysporum f. sp solani
_(Fusarium_oxysporum_f.sp._batatas)_1234227-PPT-Clemson_University.jpg?width=60)
Fusarium oxysporume0pathogen - Second interactor
- Burkholderia sp strain-V-1e0biocontrol_agent
- Outcome
- mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solanie0
- Direction
- inhibitede0
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 Burkholderia sp strain-V-1 inhibited the mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solani, Rhizoctonia solani and Sclerotium rolfsii under in vitro conditions.”
t0“tomato”
Claim · model-written summary
Burkholderia strain V-1 inhibited Rhizoctonia solani mycelial growth in vitro.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Burkholderia sp strain-V-1e0
- Interactor
- Rhizoctonia solani
Rhizoctonia solanie0pathogen - Second interactor
- Burkholderia sp strain-V-1e0biocontrol_agent
- Outcome
- mycelial growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Burkholderia sp strain-V-1 inhibited the mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solani, Rhizoctonia solani and Sclerotium rolfsii under in vitro conditions.”
t0“tomato”
Claim · model-written summary
Burkholderia strain V-1 inhibited Sclerotium rolfsii mycelial growth in vitro.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Burkholderia sp strain-V-1e0
- Interactor
- Sclerotium rolfsii
Agroathelia rolfsiie0pathogen - Second interactor
- Burkholderia sp strain-V-1e0biocontrol_agent
- Outcome
- mycelial growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Burkholderia sp strain-V-1 inhibited the mycelial growth of Pythium aphanidematum, Fusarium oxysporum f. sp solani, Rhizoctonia solani and Sclerotium rolfsii under in vitro conditions.”
t0“tomato”
Claim · model-written summary
Combined seed and soil Burkholderia formulation significantly reduced tomato damping off, wilt, root rot and Southern stem blight incidence in the greenhouse.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Seed treatment combined with soil application of the talc powder formulation of Burkholderia spe0
- Interactor
- Burkholderia sp
Burkholderiae0biocontrol_agent - Outcome
- incidence of damping off, wilt, root rot and Southern stem blighte0
- Direction
- reducede0
- Setting
- green house conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed treatment combined with soil application of the talc powder formulation of Burkholderia sp significantly reduced the incidence of damping off, wilt, root rot and Southern stem blight in green house conditions.”
t0“tomato”
Claim · model-written summary
Bacterial inoculation increased phenolic levels in tomato leaves and roots.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- leaves and rootse0
- Treatment
- Bacterial inoculatione0
- Outcome
- phenolic levelse0
- Direction
- augmentatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial inoculation in plants led to augmentation of phenolic levels and upregulation of activities of defense enzymes including phenyl alanine ammonia lyase (PAL), peroxidase (PO), polyphenol oxidase (PPO), ? 1,3 glucanase and chitinase in leaves and roots of tomato.”
Claim · model-written summary
Bacterial inoculation increased defense enzyme activities in tomato leaves and roots.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- leaves and rootse0
- Treatment
- Bacterial inoculatione0
- Gene
- phenyl alanine ammonia lyase (PAL), peroxidase (PO), polyphenol oxidase (PPO), ? 1,3 glucanase and chitinasee0
- Outcome
- activities of defense enzymese0
- Direction
- upregulatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial inoculation in plants led to augmentation of phenolic levels and upregulation of activities of defense enzymes including phenyl alanine ammonia lyase (PAL), peroxidase (PO), polyphenol oxidase (PPO), ? 1,3 glucanase and chitinase in leaves and roots of tomato.”
Claim · model-written summary
Elevated phenolics and defense enzyme activities persisted in tomato roots for up to seven days after inoculation.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- rootse0
- Outcome
- increase in phenolic levels and enhanced defense enzyme activitiese0
- Qualifier
- up to 7 days after inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in phenolic levels and enhanced defense enzyme activities in roots were observed up to 7 days after inoculation.”
t0“tomato”
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