Abstract
The effect of Rhodotorula mucilaginosa cultured in media containing chitosan on its antogonistic activity against postharvest diseases of strawberries and the possible mechanisms involved are discussed. Two-dimensional gel electrophoresis were applied in the analysis of the proteins of R. mucilaginosa in response to chitosan. Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly, with significant increase in chitinase activity of antagonistic yeast, polyphenoloxidase, peroxidase, phenylalanine ammonia lyase, chitinase and β-1,3-glucanase activity, and with an inhibition of lipid peroxidation of strawberries. The population of R. mucilaginosa harvested from NYDB amended with chitosan at 0.5% increased rapidly in strawberry wounds compared with those harvested from NYDB without chitosan. In the cellular proteome, several differentially expressed proteins were identified, most of which were related to basic metabolism.
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Claims 7
Claim · model-written summary
Yeast with 0.5% chitosan greatly enhanced biocontrol efficacy compared with yeast alone.
- Taxon
- strawberries
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- yeast combined with 0.5% chitosane0
- Interactor
- R. mucilaginosa
Rhodotorula mucilaginosae0biocontrol_agent - Outcome
- biocontrol efficacye0
- Direction
- enhancede0
- Comparator
- application of R. mucilaginosa alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
t0“Strawberries”
Claim · model-written summary
The combination significantly increased antagonistic yeast chitinase activity.
- Taxon
- strawberriesFragaria ×ananassat0
- Treatment
- 0.5% chitosane1
- Interactor
- R. mucilaginosaRhodotorula mucilaginosae1biocontrol_agentt0
- Outcome
- chitinase activity of antagonistic yeaste0
- Direction
- increasee0
- Comparator
- R. mucilaginosa alonee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with significant increase in chitinase activity of antagonistic yeast”
t0“Rhodotorula mucilaginosaCultured in Media Containing Chitosan against Postharvest Diseases in Strawberries”
e1“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
Claim · model-written summary
The combination significantly increased strawberry polyphenoloxidase, peroxidase and phenylalanine ammonia lyase activity.
- Taxon
- strawberriesFragaria ×ananassat0
- Treatment
- Chitosant0
- Outcome
- polyphenoloxidase, peroxidase, phenylalanine ammonia lyasee0
- Comparator
- Rhodotorula mucilaginosat0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyphenoloxidase, peroxidase, phenylalanine ammonia lyase, chitinase and β-1,3-glucanase activity”
t0“Rhodotorula mucilaginosaCultured in Media Containing Chitosan against Postharvest Diseases in Strawberries”
e1“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
Claim · model-written summary
The combination significantly increased strawberry chitinase and β-1,3-glucanase activity.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- Chitosant0
- Outcome
- chitinase and β-1,3-glucanase activitye0
- Comparator
- Rhodotorula mucilaginosat0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chitinase and β-1,3-glucanase activity, and with an inhibition of lipid peroxidation of strawberries”
t0“Rhodotorula mucilaginosaCultured in Media Containing Chitosan against Postharvest Diseases in Strawberries”
e1“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
Claim · model-written summary
The combination inhibited strawberry lipid peroxidation.
- Taxon
- strawberriesFragaria ×ananassae0
- Treatment
- Chitosant0
- Outcome
- lipid peroxidatione0
- Direction
- inhibitione0
- Comparator
- Rhodotorula mucilaginosat0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an inhibition of lipid peroxidation of strawberries”
t0“Rhodotorula mucilaginosaCultured in Media Containing Chitosan against Postharvest Diseases in Strawberries”
e1“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
Claim · model-written summary
Chitosan-grown yeast increased rapidly in strawberry wounds versus yeast grown without chitosan.
- Taxon
- strawberryFragaria ×ananassae0
- Organ / stage
- woundse0
- Treatment
- NYDB amended with chitosan at 0.5%e0
- Interactor
- R. mucilaginosaRhodotorula mucilaginosae0biocontrol_agent
- Outcome
- population of R. mucilaginosae0
- Direction
- increasede0
- Comparator
- NYDB without chitosane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The population of R. mucilaginosa harvested from NYDB amended with chitosan at 0.5% increased rapidly in strawberry wounds compared with those harvested from NYDB without chitosan.”
Claim · model-written summary
The yeast proteome had differentially expressed proteins, mostly related to basic metabolism.
- Taxon
- strawberriesFragaria ×ananassat0
- Interactor
- Rhodotorula mucilaginosaRhodotorula mucilaginosat0biocontrol_agent
- Outcome
- several differentially expressed proteinse0
- Qualifier
- basic metabolisme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the cellular proteome, several differentially expressed proteins were identified, most of which were related to basic metabolism.”
t0“Rhodotorula mucilaginosaCultured in Media Containing Chitosan against Postharvest Diseases in Strawberries”
e1“Compared with the application of R. mucilaginosa alone, the biocontrol efficacy of the yeast combined with 0.5% chitosan was enhanced greatly”
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- negative
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See all 6 papers →chitosan · physiology: antioxidant enzymes · Fragaria x ananassa (strawberry)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
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See all 11 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.