Abstract
Strain CF05 isolated from Cryptomeria fortunei in Tianmu Mountain, Zhejiang province was identified as Paenibacillus polymyxa on the bases of its phenotypical and biochemical characteristics as well as 16 S rDNA gene sequence. The P. polymyxa CF05 exhibited highly antagonistic effects against 9 plant fungal pathogens and 3 plant bacterial pathogens in vitro. Furthermore, both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay. Cell-free fermentation increased the biomass with fresh weight and dry weight by 272.0% and 266.7%, respectively. It was demonstrated that secondary metabolites from this bacterium might perform a critical function in plant growth promotion. Tests of root-colonizing ability indicated that concentrations of the bacterium in tomato rhizosphere were 3.8, 3.6, 3.1 and 3.1 log CFU/g root after 27 days of inoculation of tomato seeds with the bacterial suspension at 108、107、106、105 CFU/mL, respectively. Seed germination ratio was increased by 11.7%, and the disease incidence of damping-off was reduced by 38.6% after seed treatment.
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Claims 7
Claim · model-written summary
P. polymyxa CF05 showed antagonistic effects in vitro against 9 plant fungal pathogens and 3 plant bacterial pathogens.
- Taxon
- tomato
Solanum lycopersicume2 - Interactor
- plant fungal pathogense0pathogen
- Second interactor
- P. polymyxa CF05
Paenibacillus polymyxae0biocontrol_agent - Outcome
- antagonistic effectse0
- Setting
- in vitroe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P. polymyxa CF05 exhibited highly antagonistic effects against 9 plant fungal pathogens and 3 plant bacterial pathogens in vitro”
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
Claim · model-written summary
Cell-free fermentation increased tomato seedling fresh weight biomass by 272.0% in the greenhouse assay.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- Cell-free fermentatione1
- Outcome
- biomass with fresh weighte1
- Direction
- increasede1
- Value
- 272.0%e1
- Setting
- greenhouse assaye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Cell-free fermentation increased the biomass with fresh weight and dry weight by 272.0% and 266.7%, respectively”
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
Claim · model-written summary
Cell-free fermentation increased tomato seedling dry weight biomass by 266.7% in the greenhouse assay.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- Cell-free fermentatione1
- Outcome
- dry weighte1
- Direction
- increasede1
- Value
- 266.7%e1
- Setting
- greenhouse assaye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Cell-free fermentation increased the biomass with fresh weight and dry weight by 272.0% and 266.7%, respectively”
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
Claim · model-written summary
Seed treatment with the strain increased seed germination ratio by 11.7%.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- seed treatmente3
- Outcome
- Seed germination ratioe3
- Direction
- increasede3
- Value
- 11.7%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
e3“Seed germination ratio was increased by 11.7%, and the disease incidence of damping-off was reduced by 38.6% after seed treatment”
Claim · model-written summary
Seed treatment with the strain reduced damping-off disease incidence by 38.6%.
- Taxon
- tomatoSolanum lycopersicume2
- Treatment
- seed treatmente3
- Outcome
- disease incidence of damping-offe3
- Direction
- reducede3
- Value
- 38.6%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
e3“Seed germination ratio was increased by 11.7%, and the disease incidence of damping-off was reduced by 38.6% after seed treatment”
Claim · model-written summary
Root colonization by the strain in tomato rhizosphere reached 3.8, 3.6, 3.1 and 3.1 log CFU/g root after 27 days across four inoculum densities (values grouped in one claim).
- Taxon
- tomatoSolanum lycopersicume4
- Outcome
- concentrations of the bacterium in tomato rhizospheree4
- Value
- 3.8, 3.6, 3.1 and 3.1 log CFU/g roote4
- Qualifier
- after 27 dayse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“concentrations of the bacterium in tomato rhizosphere were 3.8, 3.6, 3.1 and 3.1 log CFU/g root after 27 days of inoculation of tomato seeds with the bacterial suspension at 108、107、106、105 CFU/mL, respectively”
Claim · model-written summary
The authors suggest secondary metabolites of this bacterium may drive tomato growth promotion.
- Taxon
- tomatoSolanum lycopersicume2
- Compound
- secondary metabolitese5
- Outcome
- plant growth promotione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“both cell-free fermentation and bacterial suspension promoted tomato seedlings growth in greenhouse assay”
e5“secondary metabolites from this bacterium might perform a critical function in plant growth promotion”
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See all 131 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.