Abstract
Seed treatment with ascospores of Chaetomium globosum reduced damping-off of sugar-beet caused by seed-borne Phoma betae and soil-borne Pythium ultimum or Rhizoctonia solani in growth chamber experiments. Seed treatment with a fluorescent Pseudomonas sp. controlled Ph. betae and P. ultimum but not R. solani. Coating cotton seeds with ascospores controlled P. ultimum and R. solani damping-off. In some experiments, biological seed treatments were equally or more effective than seed treatment with captan. However, greater variability in disease control occurred with the antagonists than with captan. Fifty percent of freshly harvested ascospores of C. globosum germinated in 8 h on water agar. When ascospores were stored under air-dried conditions for 3 days to 2.5 years, germination increased to > 90%. Under same storage conditions, survival of Pseudomonas sp. was detected after 4 months. Antagonistic activities observed in vitro were hyphal coiling of C. globosum on R. solani, and mycostasis was induced by C. globosum or Pseudomonas sp. on agar and soil. The presumed cause of mycostasis is the diffusible antifungal metabolites which may also be involved in the biological control of damping-off.
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Claims 11
Claim · model-written summary
Chaetomium globosum ascospore seed treatment reduced sugar-beet damping-off caused by Phoma betae, Pythium ultimum and Rhizoctonia solani in growth chamber experiments
- Taxon
- sugar-beet
Beta vulgaris subsp. vulgarise0 - Treatment
- Seed treatment with ascospores of Chaetomium globosume0
- Interactor
- Phoma betaeNeocamarosporium betaee0pathogen
- Second interactor
- Chaetomium globosum
Chaetomium globosume0biocontrol_agent - Outcome
- damping-offe0
- Direction
- reducede0
- Setting
- growth chamber experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e0“Seed treatment with ascospores of Chaetomium globosum reduced damping-off of sugar-beet caused by seed-borne Phoma betae and soil-borne Pythium ultimum or Rhizoctonia solani in growth chamber experiments”
Claim · model-written summary
Fluorescent Pseudomonas sp. seed treatment controlled Phoma betae and Pythium ultimum but not Rhizoctonia solani
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Treatment
- Seed treatment with a fluorescent Pseudomonas sp.e1
- Interactor
- Ph. betaee1pathogen
- Second interactor
- P. ultimumGlobisporangium ultimume1pathogen
- Outcome
- damping-offt0
- Direction
- controllede1
- Qualifier
- but not R. solanie1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e1“Seed treatment with a fluorescent Pseudomonas sp. controlled Ph. betae and P. ultimum but not R. solani”
Claim · model-written summary
Coating cotton seeds with ascospores controlled Pythium ultimum and Rhizoctonia solani damping-off
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Coating cotton seeds with ascosporese2
- Interactor
- P. ultimumGlobisporangium ultimume2pathogen
- Second interactor
- R. solani
Rhizoctonia solanie2pathogen - Outcome
- damping-offe2
- Direction
- controllede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e2“Coating cotton seeds with ascospores controlled P. ultimum and R. solani damping-off”
Claim · model-written summary
Biological seed treatments were equally or more effective than captan in some experiments
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Treatment
- biological seed treatmentse3
- Outcome
- effectivee3
- Direction
- equally or moree3
- Qualifier
- In some experimentse3
- Comparator
- captane3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e3“In some experiments, biological seed treatments were equally or more effective than seed treatment with captan”
Claim · model-written summary
Biological antagonists gave greater variability in disease control than captan
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Treatment
- antagonistse4
- Outcome
- variability in disease controle4
- Direction
- greatere4
- Comparator
- captane4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e4“However, greater variability in disease control occurred with the antagonists than with captan”
Claim · model-written summary
Fifty percent of freshly harvested Chaetomium globosum ascospores germinated within 8 h on water agar
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Interactor
- C. globosumChaetomium globosume5biocontrol_agent
- Outcome
- germinatede5
- Value
- Fifty percente5
- Qualifier
- in 8 h on water agare5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e5“Fifty percent of freshly harvested ascospores of C. globosum germinated in 8 h on water agar”
Claim · model-written summary
Storage of ascospores under air-dried conditions for 3 days to 2.5 years increased germination to above 90%
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Treatment
- stored under air-dried conditionse6
- Outcome
- germinatione6
- Direction
- increasede6
- Value
- > 90%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e6“When ascospores were stored under air-dried conditions for 3 days to 2.5 years, germination increased to > 90%”
Claim · model-written summary
Pseudomonas sp. survived storage under the same conditions for 4 months
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Interactor
- Pseudomonas sp.
Pseudomonase7biocontrol_agent - Outcome
- survivale7
- Value
- 4 monthse7
- Qualifier
- Under same storage conditionse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e7“Under same storage conditions, survival of Pseudomonas sp. was detected after 4 months”
Claim · model-written summary
Chaetomium globosum showed hyphal coiling on Rhizoctonia solani in vitro
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Interactor
- C. globosumChaetomium globosume7biocontrol_agent
- Second interactor
- R. solaniRhizoctonia solanie7pathogen
- Outcome
- hyphal coilinge7
- Qualifier
- in vitroe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e7“Antagonistic activities observed in vitro were hyphal coiling of C. globosum on R. solani, and mycostasis was induced by C. globosum or Pseudomonas sp. on agar and soil”
Claim · model-written summary
Chaetomium globosum and Pseudomonas sp. induced mycostasis on agar and soil
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Interactor
- C. globosumChaetomium globosume7biocontrol_agent
- Second interactor
- Pseudomonas sp.Pseudomonase7biocontrol_agent
- Outcome
- mycostasise7
- Qualifier
- on agar and soile7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e7“Antagonistic activities observed in vitro were hyphal coiling of C. globosum on R. solani, and mycostasis was induced by C. globosum or Pseudomonas sp. on agar and soil”
Claim · model-written summary
Mycostasis is presumably caused by diffusible antifungal metabolites
- Taxon
- sugar-beetBeta vulgaris subsp. vulgarist0
- Compound
- diffusible antifungal metabolitese6
- Outcome
- mycostasise6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Biological control of damping-off of sugar-beet and cotton with Chaetomium globosum or a fluorescent Pseudomonas sp.”
e6“The presumed cause of mycostasis is the diffusible antifungal metabolites”
The same questions in other papers
Pseudomonas · disease · Beta vulgaris (beet)Results agree
2 papers in the same direction as this paper
- positive
- positive
storage · growth · Beta vulgaris (beet)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
4 papers more in this group
See all 8 papers →seed treatment · disease · Beta vulgaris (beet)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
5 papers more in this group
See all 9 papers →seed treatment · Neocamarosporium betae · Beta vulgaris (beet)Results agree
1 paper in the same direction as this paper
- positive
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.