Abstract
The effects of S-921 strain (Streptomyces aureus) and its fermented broth on apple tree canker, Valsa mali,were tested by plating and free culture methods. The results shown that the S-921 strain had a strong antibiotic effect. An inhibiting circle with a diameter of 30-40 mm was produced on the PDA plate in which the S-921 strain and V. mali were inoculated. V. mali lost its pathogenicity when treated with the fermented broth for 12 hr. Results of the free culture indicated that the best effect was produced when the canker was treated with the fermented broth following scraping off the canker spot. The rate of cure could reach up to 100%. The method of cutting canker spot (2-3 mm apart) and treating with the fermented broth temporarily inhibited the development of canker spot, but the canker was not cured completely. It was found that the fermented broth caused lysis of V. mali. The vacuole of the fungus disappeared, the cytoplasm condensed, the hypha wall broke, the cytoplasm leaked and the fungus' cell degenerated.
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Claims 5
Claim · model-written summary
S-921 produced a 30-40 mm inhibition circle against V. mali on PDA.
- Taxon
- apple tree
Malus domesticat0 - Treatment
- S-921 straine0
- Interactor
- V. maliCytospora malie0pathogen
- Second interactor
- S-921 straine0biocontrol_agent
- Outcome
- inhibiting circlee0
- Value
- 30-40 mme0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An inhibiting circle with a diameter of 30-40 mm was produced on the PDA plate in which the S-921 strain and V. mali were inoculated.”
t0“APPLE TREE CANKER”
Claim · model-written summary
V. mali lost pathogenicity after 12 hours of broth treatment.
- Taxon
- apple treeMalus domesticat0
- Treatment
- fermented broth for 12 hre0
- Interactor
- V. maliCytospora malie0pathogen
- Outcome
- V. mali lost its pathogenicitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“V. mali lost its pathogenicity when treated with the fermented broth for 12 hr.”
t0“APPLE TREE CANKER”
Claim · model-written summary
Scraping the canker then applying broth produced up to 100% cure.
- Taxon
- apple treeMalus domesticat0
- Treatment
- fermented broth following scraping off the canker spote0
- Outcome
- rate of curee0
- Direction
- beste0
- Value
- up to 100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best effect was produced when the canker was treated with the fermented broth following scraping off the canker spot. The rate of cure could reach up to 100%.”
t0“APPLE TREE CANKER”
Claim · model-written summary
Cutting the canker then applying broth temporarily inhibited its development without complete cure.
- Taxon
- apple treeMalus domesticat0
- Treatment
- cutting canker spot (2-3 mm apart) and treating with the fermented brothe0
- Outcome
- development of canker spote0
- Direction
- inhibitede0
- Qualifier
- but the canker was not cured completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The method of cutting canker spot (2-3 mm apart) and treating with the fermented broth temporarily inhibited the development of canker spot, but the canker was not cured completely.”
t0“APPLE TREE CANKER”
Claim · model-written summary
The broth lysed V. mali.
- Taxon
- apple treeMalus domesticat0
- Treatment
- fermented brothe0
- Interactor
- V. maliCytospora malie0pathogen
- Outcome
- lysis of V. malie0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the fermented broth caused lysis of V. mali.”
t0“APPLE TREE CANKER”
The same questions in other papers
processing · Cytospora mali · Malus domestica (apple)Results agree
2 papers in the same direction as this paper
- positive
- 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.