Abstract
Dry rot is an important postharvest disease of potato tubers caused by Fusarium.This study investigated the effects of chitosan at different concentrations against F.sulphureum and F.sambucinum of dry rot pathogens in potato tubers in vitro and in vivo.Results indicated that chitosan significantly inhibited the spore germination of two pathogens.The rate of spore germination of F. sulphureum was 92% lower than the control,and of F.sambucinum was completely inhibited. Chitosan also inhibited the mycelium growth of two pathogens,the mycelium diameter were 7.46% and 8.9% lower than the control at 0.25% of the optimum treatment concentration.Its inhibition showed more effective to F.sambucinum.Chitosan inhibited the lesion diameter of slices inoculated with F.sulphureum and F.sambucinum,and lesion diameters were 45.3% and 34.5% lower than the control at 0.25% of the optimum treatment concentration. Efficacy was not enhanced when the concentration of chitosan was increased. It is proposed that chitosan treatment could directly inhibit pathogen growth and decrease dry rot of potato tubers by induced resistance.
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Claims 9
Claim · model-written summary
Chitosan lowered F. sulphureum spore germination by 92% versus control.
Verbatim
e0“chitosan significantly inhibited the spore germination of two pathogens.The rate of spore germination of F. sulphureum was 92% lower than the control”
t0“potato tubers”
Claim · model-written summary
Chitosan completely inhibited F. sambucinum spore germination.
- Taxon
- potato tuberst0
- Treatment
- chitosane0
- Interactor
- F.sambucinumFusarium sambucinume0pathogen
- Outcome
- spore germinatione0
- Direction
- completely inhibitede0
Not reportedComparator
Verbatim
e0“chitosan significantly inhibited the spore germination of two pathogens.The rate of spore germination of F. sulphureum was 92% lower than the control,and of F.sambucinum was completely inhibited”
t0“potato tubers”
Claim · model-written summary
At 0.25% chitosan, F. sulphureum mycelium diameter was 7.46% lower than control.
Verbatim
e0“Chitosan also inhibited the mycelium growth of two pathogens,the mycelium diameter were 7.46% and 8.9% lower than the control at 0.25% of the optimum treatment concentration”
e1“The rate of spore germination of F. sulphureum was 92% lower than the control”
t0“potato tubers”
Claim · model-written summary
At 0.25% chitosan, F. sambucinum mycelium diameter was 8.9% lower than control.
Verbatim
e0“Chitosan also inhibited the mycelium growth of two pathogens,the mycelium diameter were 7.46% and 8.9% lower than the control at 0.25% of the optimum treatment concentration”
e1“against F.sulphureum and F.sambucinum of dry rot pathogens”
t0“potato tubers”
Claim · model-written summary
Chitosan reduced lesions of F. sulphureum inoculated potato slices by 45.3%.
Verbatim
e0“Chitosan inhibited the lesion diameter of slices inoculated with F.sulphureum and F.sambucinum,and lesion diameters were 45.3% and 34.5% lower than the control at 0.25% of the optimum treatment concentration”
t0“potato tubers”
Claim · model-written summary
Chitosan reduced lesions of F. sambucinum inoculated potato slices by 34.5%.
Verbatim
e0“Chitosan inhibited the lesion diameter of slices inoculated with F.sulphureum and F.sambucinum,and lesion diameters were 45.3% and 34.5% lower than the control at 0.25% of the optimum treatment concentration”
t0“potato tubers”
Claim · model-written summary
Chitosan inhibition was more effective against F. sambucinum.
- Taxon
- potato tuberst0
- Treatment
- inhibitione0
- Interactor
- F.sambucinumFusarium sambucinume0pathogen
- Outcome
- more effective to F.sambucinume0
- Direction
- more effectivee0
Not reportedComparator
Verbatim
e0“Its inhibition showed more effective to F.sambucinum”
t0“potato tubers”
Claim · model-written summary
Increasing chitosan concentration did not enhance efficacy.
- Taxon
- potato tuberst0
- Treatment
- concentration of chitosan was increasede0
- Outcome
- Efficacye0
- Direction
- not enhancede0
Not reportedComparator
Verbatim
e0“Efficacy was not enhanced when the concentration of chitosan was increased”
t0“potato tubers”
Claim · model-written summary
The authors propose chitosan treatment to reduce potato tuber dry rot through pathogen inhibition and induced resistance.
Verbatim
e0“chitosan treatment could directly inhibit pathogen growth and decrease dry rot of potato tubers by induced resistance”
The same questions in other papers
chitosan · control · Solanum tuberosum (potato)Positive and negative results
2 in the opposite direction
- 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.