Abstract
Sterile culture filtrates of Epicoccum purpurascens decreased severity of white mold of bean and increased pod yield when applied prior to inoculation of beans with Sclerotinia sclerotiorum. Extracts of these culture filtrates inhibited ascospore germination and mycelial growth of S. sclerotiorum. Similar inhibition of hyphal growth of S. sclerotiorum occurred when dual cultured with E. purpurascens. Contact and penetration of hyphae of S. sclerotiorum by hyphae of E. purpurascens occurred rarely on agar-covered slides and was not observed on flower petals. Inhibition of ascospore germination and germ-tube elongation occurred on agar-covered slides where E. purpurascens had been grown previously; however, addition of nutrients decreased inhibition. Colonization of bean flowers by E. purpurascens reduced white mold incidence. The degree of disease control was affected by addition of nutrients and whether or not colonized flowers were autoclaved. Key words: antifungal compounds, competition, biological control, white mold, Phaseolus.
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Claims 10
Claim · model-written summary
Sterile culture filtrates of Epicoccum purpurascens applied before inoculation with Sclerotinia sclerotiorum decreased the severity of white mold of bean.
- Taxon
- beane0
- Treatment
- Sterile culture filtrates of Epicoccum purpurascense0
- Interactor
- Sclerotinia sclerotiorum
Sclerotinia sclerotiorume0pathogen - Second interactor
- Epicoccum purpurascens
Epicoccum nigrume0biocontrol_agent - Outcome
- severity of white molde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sterile culture filtrates of Epicoccum purpurascens decreased severity of white mold of bean and increased pod yield when applied prior to inoculation of beans with Sclerotinia sclerotiorum”
Claim · model-written summary
Sterile culture filtrates of Epicoccum purpurascens applied before inoculation with Sclerotinia sclerotiorum increased bean pod yield.
- Taxon
- beane0
- Treatment
- Sterile culture filtrates of Epicoccum purpurascense0
- Interactor
- Sclerotinia sclerotiorumSclerotinia sclerotiorume0pathogen
- Second interactor
- Epicoccum purpurascensEpicoccum nigrume0biocontrol_agent
- Outcome
- pod yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sterile culture filtrates of Epicoccum purpurascens decreased severity of white mold of bean and increased pod yield when applied prior to inoculation of beans with Sclerotinia sclerotiorum”
Claim · model-written summary
Extracts of the E. purpurascens culture filtrates inhibited ascospore germination and mycelial growth of S. sclerotiorum.
- Taxon
- S. sclerotiorumSclerotinia sclerotiorume1
- Treatment
- Extracts of these culture filtratese1
- Outcome
- ascospore germination and mycelial growthe1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Extracts of these culture filtrates inhibited ascospore germination and mycelial growth of S. sclerotiorum”
Claim · model-written summary
Hyphal growth of S. sclerotiorum was similarly inhibited when dual cultured with E. purpurascens.
- Taxon
- S. sclerotiorumSclerotinia sclerotiorume2
- Treatment
- dual cultured with E. purpurascense2
- Outcome
- hyphal growthe2
- Direction
- inhibitione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Similar inhibition of hyphal growth of S. sclerotiorum occurred when dual cultured with E. purpurascens”
Claim · model-written summary
Contact and penetration of S. sclerotiorum hyphae by E. purpurascens hyphae occurred rarely on agar-covered slides and was not observed on flower petals.
- Taxon
- S. sclerotiorumSclerotinia sclerotiorume3
- Outcome
- Contact and penetration of hyphae of S. sclerotiorum by hyphae of E. purpurascense3
- Setting
- agar-covered slidese3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Contact and penetration of hyphae of S. sclerotiorum by hyphae of E. purpurascens occurred rarely on agar-covered slides and was not observed on flower petals”
Claim · model-written summary
Ascospore germination and germ-tube elongation of S. sclerotiorum were inhibited on agar-covered slides where E. purpurascens had been grown previously.
- Taxon
- S. sclerotiorumSclerotinia sclerotiorume1
- Treatment
- agar-covered slides where E. purpurascens had been grown previouslye4
- Outcome
- ascospore germination and germ-tube elongatione4
- Direction
- Inhibitione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Inhibition of ascospore germination and germ-tube elongation occurred on agar-covered slides where E. purpurascens had been grown previously”
e1“Extracts of these culture filtrates inhibited ascospore germination and mycelial growth of S. sclerotiorum”
Claim · model-written summary
Addition of nutrients decreased the inhibition of S. sclerotiorum ascospore germination and germ-tube elongation on slides previously colonized by E. purpurascens.
- Taxon
- S. sclerotiorumSclerotinia sclerotiorume1
- Treatment
- addition of nutrientse5
- Outcome
- inhibitione5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“addition of nutrients decreased inhibition”
e4“Inhibition of ascospore germination and germ-tube elongation occurred on agar-covered slides where E. purpurascens had been grown previously”
e1“Extracts of these culture filtrates inhibited ascospore germination and mycelial growth of S. sclerotiorum”
Claim · model-written summary
Colonization of bean flowers by E. purpurascens reduced white mold incidence.
- Taxon
- beane6
- Organ / stage
- flowerse6
- Treatment
- Colonization of bean flowers by E. purpurascense6
- Interactor
- E. purpurascensEpicoccum nigrume6biocontrol_agent
- Outcome
- white mold incidencee6
- Direction
- reducede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Colonization of bean flowers by E. purpurascens reduced white mold incidence”
Claim · model-written summary
The degree of white mold control by E. purpurascens flower colonization was affected by the addition of nutrients (direction not stated).
Not reportedTaxonComparatorDirection
Verbatim
e7“The degree of disease control was affected by addition of nutrients and whether or not colonized flowers were autoclaved”
Claim · model-written summary
The degree of white mold control by E. purpurascens flower colonization was affected by whether or not colonized flowers were autoclaved (direction not stated).
Not reportedTaxonComparatorDirection
Verbatim
e7“The degree of disease control was affected by addition of nutrients and whether or not colonized flowers were autoclaved”
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1 paper in the same direction as this paper
- positive
Epicoccum nigrum · Sclerotinia sclerotiorum · Phaseolus vulgaris (common bean)Results agree
2 papers in the same direction as this paper
- positive
- positive
infection · disease · Phaseolus vulgaris (common bean)Positive and negative results
4 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
6 papers more in this group
See all 10 papers →botanical · disease · Sclerotinia sclerotiorumResults 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.