Abstract
Post-harvest non-chemical treatments consists of a large range of different approaches, including strengthening of the commodity’s natural defence mechanisms, thermotherapy, application of antagonistic microorganisms and natural antimicrobial substances. NEX0101 is a promising antagonistic biocontrol agent containing the yeast Candida oleophila as the active ingredient. NEX0101 was developed by Bionext, a spin-off from the laboratory of Dr. H. Jijakli, and is currently evaluated for commercial use. The product contains a yeast strain isolated from apple fruit and was originally developed for the control of post-harvest diseases on apple. The antifungal effectiveness of this antagonist can be increased by addition of calcium salts. As the mode of action of this yeast is based on the colonisation of wounds, the mean targets of NEX0101 are blue mould, caused by Penicillium expansum, and grey mould, caused by Botrytis cinerea. Facing possible latent infections, thermotherapy by using hot water treatments could provide an advanced control towards lenticelrot (Gloeosporium spp.). A combination of both physical and biological treatment techniques could broaden the spectrum to all key pathogens on apple and pear. The use of NEX0101 for the control of P. expansum was examined in combination with calcium gluconate. According to the results the combination NEX0101 with calcium gluconate provides an advanced mould control towards P. expansum The best results were achieved using NEX0101 in combination with post-harvest dipping by thermotherapy. The hot water treatment alone was clearly inefficient towards wound parasite P. expansum, on the contrary thermotherapy stimulates the decay caused by this postharvest pathogen. For the future a combination of biological and physical treatments could offer a worthy non-chemical alternative for organic and integrated fruit growers towards fruit rot decay, although more research is necessary to implement these methods in practice.
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Claims 5
Claim · model-written summary
Adding calcium salts increased antifungal effectiveness of the apple derived antagonist.
- Taxon
- apple
Malus domesticae1 - Treatment
- addition of calcium saltse0
- Interactor
- Candida oleophilaDujonia oleophilae2biocontrol_agent
- Outcome
- antifungal effectivenesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The antifungal effectiveness of this antagonist can be increased by addition of calcium salts.”
e1“The product contains a yeast strain isolated from apple fruit”
e2“containing the yeast Candida oleophila as the active ingredient”
Claim · model-written summary
NEX0101 with calcium gluconate improved control of P. expansum mould on apple.
- Taxon
- appleMalus domesticat0
- Treatment
- combination NEX0101 with calcium gluconatee0
- Interactor
- P. expansum
Penicillium expansume0pathogen - Second interactor
- Candida oleophilaDujonia oleophilae1biocontrol_agent
- Outcome
- mould control towards P. expansume0
- Direction
- advancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination NEX0101 with calcium gluconate provides an advanced mould control towards P. expansum”
t0“apple”
e1“containing the yeast Candida oleophila as the active ingredient”
Claim · model-written summary
NEX0101 combined with postharvest thermotherapy dipping gave the best apple disease control results.
- Taxon
- appleMalus domesticat0
- Treatment
- NEX0101 in combination with post-harvest dipping by thermotherapye0
- Outcome
- best resultse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best results were achieved using NEX0101 in combination with post-harvest dipping by thermotherapy.”
t0“apple”
Claim · model-written summary
Hot water treatment alone was inefficient against P. expansum on apple.
- Taxon
- appleMalus domesticat0
- Treatment
- hot water treatment alonee0
- Interactor
- P. expansumPenicillium expansume0pathogen
- Outcome
- inefficient towards wound parasite P. expansume0
- Direction
- inefficiente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hot water treatment alone was clearly inefficient towards wound parasite P. expansum”
t0“apple”
Claim · model-written summary
Thermotherapy stimulated decay caused by P. expansum on apple.
- Taxon
- appleMalus domesticat0
- Treatment
- thermotherapye0
- Interactor
- P. expansumPenicillium expansume1pathogen
- Outcome
- decaye0
- Direction
- stimulatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thermotherapy stimulates the decay caused by this postharvest pathogen”
e1“wound parasite P. expansum”
t0“apple”
The same questions in other papers
heat · Penicillium expansum · Malus domestica (apple)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →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.