Abstract
Biocontrol activities of different yeast species and strains isolated from grape/must/ wine environments have been compared to those of commercially available antagonistic yeast species of Candida oleophila.A total of 591 yeast isolates were tested in a preliminary screening on agar to select isolates showing inhibitory effect against Botrytis cinerea, the plant pathogen causing grey mould disease on grape.Yeast species Aureobasidium pullulans, Metschnikowia pulcherrima and Pichia guilliermondii showed, on average, higher biocontrol activity than commercially used yeast Candida oleophila.Furthermore, these three species and Saccharomyces cerevisiae, which is potentially interesting biocontrol agent against grey mould of grapes, were selected for their inhibitory effects and assayed in vitro on different solid synthetic media for their antagonistic capacity towards B. cinerea.The results indicate that the composition of the medium had an impact on the biocontrol activity of yeast species and strains, as Saccharomyces cerevisiae showed the highest antagonistic activity against B. cinerea when tested on media with increased concentrations of glucose.The antagonistic activity of selected yeast strains was finally determined on wounded and sound grape berries of cultivars Rebula and Chardonnay for their ability to inhibit infection by B. cinerea moulds.Results suggest that antagonist yeasts with the potential to control B. cinerea on grape can be found among the microflora associated with the berries.
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Claims 6
Claim · model-written summary
Aureobasidium pullulans showed greater average biocontrol activity than Candida oleophila.
- Taxon
- grapet0
- Interactor
- Aureobasidium pullulans
Aureobasidium pullulanse0biocontrol_agentt1 - Outcome
- biocontrol activitye0
- Direction
- highere0
- Comparator
- Candida oleophilae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yeast species Aureobasidium pullulans, Metschnikowia pulcherrima and Pichia guilliermondii showed, on average, higher biocontrol activity than commercially used yeast Candida oleophila.”
t0“Grape”
t1“biocontrol agent”
Claim · model-written summary
Metschnikowia pulcherrima showed greater average biocontrol activity than Candida oleophila.
Verbatim
e0“Yeast species Aureobasidium pullulans, Metschnikowia pulcherrima and Pichia guilliermondii showed, on average, higher biocontrol activity than commercially used yeast Candida oleophila.”
t0“Grape”
t1“biocontrol agent”
Claim · model-written summary
Pichia guilliermondii showed greater average biocontrol activity than Candida oleophila.
Verbatim
e0“Yeast species Aureobasidium pullulans, Metschnikowia pulcherrima and Pichia guilliermondii showed, on average, higher biocontrol activity than commercially used yeast Candida oleophila.”
t0“Grape”
t1“biocontrol agent”
Claim · model-written summary
Medium composition affected yeast biocontrol activity.
Verbatim
e0“The results indicate that the composition of the medium had an impact on the biocontrol activity of yeast species and strains”
t0“Grape”
Claim · model-written summary
Saccharomyces cerevisiae had the highest activity against B. cinerea on glucose-enriched media.
- Taxon
- grapet0
- Treatment
- media with increased concentrations of glucosee0
- Interactor
- B. cinerea
Botrytis cinereae0pathogent1 - Second interactor
- Saccharomyces cerevisiae
Saccharomyces cerevisiaee0biocontrol_agente1 - Outcome
- antagonistic activity against B. cinereae0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saccharomyces cerevisiae showed the highest antagonistic activity against B. cinerea when tested on media with increased concentrations of glucose.”
t0“Grape”
t1“plant pathogen causing grey mould disease on grape”
e1“biocontrol agent”
Claim · model-written summary
Antagonistic yeasts able to control B. cinerea on grape may occur among berry microflora.
- Taxon
- grapee0
- Interactor
- B. cinereaBotrytis cinereae0pathogent0
- Outcome
- potential to control B. cinerea on grapee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results suggest that antagonist yeasts with the potential to control B. cinerea on grape can be found among the microflora associated with the berries.”
t0“plant pathogen causing grey mould disease on grape”
The same questions in other papers
in vitro · Botrytis cinerea · VitisResults agree
3 papers in the same direction as this paper
- positive
- 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.