Abstract
The demand for alternatives to synthetic fungicides has been increasing due to the rise of pathogens resistant to active principles, consumers and producers consciousness, and EU directives on sustainable farming. Botrytis cinerea is a worldwide distributed pathogen of grapevines causing losses of grape production. In the last years, yeasts and their derivatives have been studied as promising alternatives to fungicides for the management of plants’ pathogens. In this study, a screening of various inactive yeast suspensions from the food industry was performed. The objective of this research was to check several yeast derivates efficacy in plant stimulation and defence activation toward B. cinerea. Grapevine plants, cultivar Merlot grown in pots in a greenhouse, were treated twice using inactive yeast-based suspensions. Stomatal conductance was monitored 48 hours later to assess the plant metabolism. Inoculation of B. cinerea was performed on detached leaves at 72 hours after the second application and extension of the lesions was observed three days later. Results suggest that inactive yeast Saccharomyces cerevisiae grown on exhausted medium of Salvia officinalis efficiently reduce B. cinerea lesions on leaves in comparison to the untreated control. An increase in plants photosynthetic activity has also been observed after the application of the exhausted medium of S. officinalis. Those extracts could offer interesting alternatives to synthetic fungicides. Further in vivo trials need to be conducted to investigate the efficiency of these compounds in protecting Grapevine production.
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Claims 2
Claim · model-written summary
Inactive Saccharomyces cerevisiae grown on exhausted Salvia officinalis medium reduced Botrytis cinerea leaf lesions against untreated controls.
- Treatment
- inactive yeast Saccharomyces cerevisiae grown on exhausted medium of Salvia officinalise0
- Interactor
- B. cinerea
Botrytis cinereae0pathogen - Second interactor
- Saccharomyces cerevisiae
Saccharomyces cerevisiaee0biocontrol_agent - Outcome
- B. cinerea lesions on leavese0
- Direction
- reducee0
- Comparator
- untreated controle0
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inactive yeast Saccharomyces cerevisiae grown on exhausted medium of Salvia officinalis efficiently reduce B. cinerea lesions on leaves in comparison to the untreated control”
t0“grapevine”
Claim · model-written summary
Exhausted Salvia officinalis medium increased grapevine photosynthetic activity.
- Treatment
- exhausted medium of S. officinalise0
- Outcome
- plants photosynthetic activitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in plants photosynthetic activity has also been observed after the application of the exhausted medium of S. officinalis.”
t0“grapevine”
The same questions in other papers
in vitro · physiology: photosynthesis · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
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.