Abstract
A protein polygalacturonidase inhibitor isolated from fruit of the apple varieties Antonovka and Mantuanskoe differently affects the polygalacturonidases of different phytopathogenic fungi. Three groups of fungi were recognized by the sensitivity of their polygalacturonidases to the inhibitory effect. Storage of apples after harvesting is accompanied by changes in the inhibitor activity, and the time pattern of these changes depends on the variety. An increase in the inhibitor activity occurs concurrently with the elevation in ethylene release characteristic of the stage of elevated respiration (a climacteric increase). The data suggest that a decrease in the apple fruit resistance to microbes at the end of the storage period is related, along with other reasons, to a change in the activity of the protein polygalacturonidase inhibitor.
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Claims 5
Claim · model-written summary
Apple fruit polygalacturonidase inhibitor affected enzymes from different phytopathogenic fungi differently.
- Taxon
- apple
Malus domesticae0 - Material
- Antonovka and Mantuanskoee0
- Interactor
- phytopathogenic fungie0pathogen
- Gene
- polygalacturonidase inhibitore0
- Outcome
- polygalacturonidases of different phytopathogenic fungie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A protein polygalacturonidase inhibitor isolated from fruit of the apple varieties Antonovka and Mantuanskoe differently affects the polygalacturonidases of different phytopathogenic fungi”
Claim · model-written summary
Three fungal groups differed in enzyme sensitivity to the apple inhibitor.
- Taxon
- appleMalus domesticae1
- Outcome
- sensitivity of their polygalacturonidases to the inhibitory effecte0
- Value
- Three groupse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three groups of fungi were recognized by the sensitivity of their polygalacturonidases to the inhibitory effect”
e1“fruit of the apple varieties”
Claim · model-written summary
Apple inhibitor activity changed during postharvest storage with a cultivar-dependent time pattern.
- Taxon
- applesMalus domesticae0
- Organ / stage
- after harvestinge0
- Outcome
- inhibitor activitye0
- Qualifier
- time pattern of these changes depends on the varietye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Storage of apples after harvesting is accompanied by changes in the inhibitor activity, and the time pattern of these changes depends on the variety”
Claim · model-written summary
Increasing apple inhibitor activity coincided with increased ethylene release during the climacteric.
- Organ / stage
- stage of elevated respiratione0
- Compound
- ethylenee0
- Outcome
- inhibitor activitye0
- Direction
- increasee0
Not reportedTaxon
Verbatim
e0“An increase in the inhibitor activity occurs concurrently with the elevation in ethylene release characteristic of the stage of elevated respiration (a climacteric increase)”
Claim · model-written summary
The authors suggest that reduced apple fruit microbial resistance late in storage relates partly to altered inhibitor activity.
- Taxon
- appleMalus domesticae0
- Interactor
- microbese0pathogen
- Gene
- protein polygalacturonidase inhibitore0
- Outcome
- fruit resistance to microbese0
- Qualifier
- at the end of the storage periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in the apple fruit resistance to microbes at the end of the storage period is related, along with other reasons, to a change in the activity of the protein polygalacturonidase inhibitor”