Abstract
Thirty seven bacterial isolates from faba bean (Vicia faba L.) root-nodules were screened for their antagonistic activity against eight Rhizoctonia solani strains isolated from infected potato (Solanum tuberosum L.) tubers. Two bacterial strains (designated as Kl.Fb14 and S8.Fb11) gave 50% in vitro inhibition of R. solani mycelial growth. 16S rDNA sequence analysis indicated that strain Kl.Fb14 exhibited 99.5% identity with Pseudomonas moraviensis, and that S8.Fb11 exhibited 99.8% identity with Pseudomonas reinekei. Greenhouse trials in soil showed that strain S8.Fb11 reduced the percentage of sclerotia on potato tubers and amounts of tuber infection for the potato cultivars Spunta and Nicola. In a field trial conducted in South Tunisia, infection with R. solani reduced potato yield by approximately 40% for ‘Spunta’ and 17% for ‘Nicola’; about 20% of the total tuber production was severely infected. However, when potato tubers were treated with strain S8.Fb11 prior to sowing, disease incidence was reduced to 6% of total production with low infection levels; potato yield was enhanced by about 6 kg per 10 m row in comparison to R. solani infected plants. The second selected Pseudomonas sp. (strain Kl.Fb14) did not affect either the levels of sclerotia on tubers or potato yield.
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Claims 13
Claim · model-written summary
Kl.Fb14 inhibited R. solani mycelial growth by 50% in vitro.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Kl.Fb14e0
- Interactor
- R. solani
Rhizoctonia solanie0pathogen - Second interactor
- Kl.Fb14e0biocontrol_agent
- Outcome
- R. solani mycelial growthe0
- Direction
- inhibitione0
- Value
- 50%e0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two bacterial strains (designated as Kl.Fb14 and S8.Fb11) gave 50% in vitro inhibition of R. solani mycelial growth”
t0“in potato”
Claim · model-written summary
S8.Fb11 inhibited R. solani mycelial growth by 50% in vitro.
- Taxon
- potatoSolanum tuberosumt0
- Material
- S8.Fb11e0
- Interactor
- R. solaniRhizoctonia solanie0pathogen
- Second interactor
- S8.Fb11e0biocontrol_agent
- Outcome
- R. solani mycelial growthe0
- Direction
- inhibitione0
- Value
- 50%e0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two bacterial strains (designated as Kl.Fb14 and S8.Fb11) gave 50% in vitro inhibition of R. solani mycelial growth”
t0“in potato”
Claim · model-written summary
Kl.Fb14 had 99.5% 16S sequence identity with Pseudomonas moraviensis.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- Pseudomonas moraviensisPseudomonas moraviensise0biocontrol_agent
- Outcome
- identity with Pseudomonas moraviensise0
- Value
- 99.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strain Kl.Fb14 exhibited 99.5% identity with Pseudomonas moraviensis”
t0“in potato”
Claim · model-written summary
S8.Fb11 had 99.8% 16S sequence identity with Pseudomonas reinekei.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- Pseudomonas reinekeiPseudomonas reinekeie0biocontrol_agent
- Outcome
- identity with Pseudomonas reinekeie0
- Value
- 99.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S8.Fb11 exhibited 99.8% identity with Pseudomonas reinekei”
t0“in potato”
Claim · model-written summary
S8.Fb11 reduced tuber sclerotia in Spunta and Nicola in greenhouse soil.
- Taxon
- potatoSolanum tuberosume0
- Material
- Spunta and Nicolae0
- Treatment
- strain S8.Fb11e0
- Interactor
- S8.Fb11e0biocontrol_agent
- Outcome
- percentage of sclerotia on potato tuberse0
- Direction
- reducede0
- Setting
- Greenhouse trials in soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse trials in soil showed that strain S8.Fb11 reduced the percentage of sclerotia on potato tubers and amounts of tuber infection for the potato cultivars Spunta and Nicola”
Claim · model-written summary
S8.Fb11 reduced tuber infection in Spunta and Nicola in greenhouse soil.
- Taxon
- potatoSolanum tuberosume0
- Material
- Spunta and Nicolae0
- Treatment
- strain S8.Fb11e0
- Interactor
- S8.Fb11e0biocontrol_agent
- Outcome
- amounts of tuber infectione0
- Direction
- reducede0
- Setting
- Greenhouse trials in soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greenhouse trials in soil showed that strain S8.Fb11 reduced the percentage of sclerotia on potato tubers and amounts of tuber infection for the potato cultivars Spunta and Nicola”
Claim · model-written summary
R. solani infection reduced Spunta yield by approximately 40% in South Tunisia.
- Taxon
- potatoSolanum tuberosume0
- Material
- Spuntae0
- Treatment
- infection with R. solanie0
- Interactor
- R. solaniRhizoctonia solanie0pathogen
- Outcome
- potato yielde0
- Direction
- reducede0
- Value
- approximately 40%e0
- Setting
- South Tunisiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a field trial conducted in South Tunisia, infection with R. solani reduced potato yield by approximately 40% for ‘Spunta’ and 17% for ‘Nicola’”
Claim · model-written summary
R. solani infection reduced Nicola yield by 17% in South Tunisia.
- Taxon
- potatoSolanum tuberosume0
- Material
- Nicolae0
- Treatment
- infection with R. solanie0
- Interactor
- R. solaniRhizoctonia solanie0pathogen
- Outcome
- potato yielde0
- Direction
- reducede0
- Value
- 17%e0
- Setting
- South Tunisiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a field trial conducted in South Tunisia, infection with R. solani reduced potato yield by approximately 40% for ‘Spunta’ and 17% for ‘Nicola’”
Claim · model-written summary
About 20% of tuber production was severely infected.
- Taxon
- potatoSolanum tuberosumt0
- Interactor
- Rhizoctonia solaniRhizoctonia solanit0pathogen
- Outcome
- total tuber production was severely infectede0
- Value
- 20%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“about 20% of the total tuber production was severely infected”
t0“Rhizoctonia solani in potato”
Claim · model-written summary
S8.Fb11 pretreatment reduced disease incidence to 6% of production.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- treated with strain S8.Fb11 prior to sowinge0
- Interactor
- Rhizoctonia solaniRhizoctonia solanit0pathogen
- Second interactor
- S8.Fb11e0biocontrol_agent
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when potato tubers were treated with strain S8.Fb11 prior to sowing, disease incidence was reduced to 6% of total production with low infection levels”
t0“Rhizoctonia solani in potato”
Claim · model-written summary
S8.Fb11 pretreatment enhanced potato yield by about 6 kg per 10 m row versus infected plants.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- treated with strain S8.Fb11 prior to sowinge0
- Interactor
- R. solaniRhizoctonia solanie0pathogen
- Second interactor
- S8.Fb11e0biocontrol_agent
- Outcome
- potato yielde0
- Direction
- enhancede0
- Value
- about 6 kg per 10 m rowe0
- Comparator
- R. solani infected plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when potato tubers were treated with strain S8.Fb11 prior to sowing, disease incidence was reduced to 6% of total production with low infection levels; potato yield was enhanced by about 6 kg per 10 m row in comparison to R. solani infected plants”
Claim · model-written summary
Kl.Fb14 did not affect tuber sclerotia levels.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- strain Kl.Fb14e0
- Interactor
- Kl.Fb14e0biocontrol_agent
- Outcome
- levels of sclerotia on tuberse0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The second selected Pseudomonas sp. (strain Kl.Fb14) did not affect either the levels of sclerotia on tubers or potato yield”
t0“in potato”
Claim · model-written summary
Kl.Fb14 did not affect potato yield.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- strain Kl.Fb14e0
- Interactor
- Kl.Fb14e0biocontrol_agent
- Outcome
- potato yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The second selected Pseudomonas sp. (strain Kl.Fb14) did not affect either the levels of sclerotia on tubers or potato yield”
The same questions in other papers
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See all 24 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.