Abstract
Six hours after hypoxic hypobaria(HH,10 kPa,1.5 kPaO2),Fuji apples were then treated with 1-MCP for 24 h at 20 ℃.Effect of internal ethylene and 1-methylcyclopropene on ripening physiology of apple during postharvest storage was investigated by examining physiological indexes of apples during storage.The results showed that hypoxic hypobaria treatment significantly decreased internal ethylene concentration(IEC) by 61.6%.However,there were not marked difference in other physiological indexes between the treatment and control.1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content,delayed respiration and ethylene peak,and stimulated activities of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT).Subsequently,postharvest ripening of apples was effectively delayed.It can be concluded that internal ethylene levels in postharvest apples play a significant role in affecting 1-MCP action.
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Claims 12
Claim · model-written summary
Hypoxic hypobaria significantly reduced apple internal ethylene concentration by 61.6%.
- Taxon
- apple
Malus domesticat0 - Treatment
- hypoxic hypobaria treatmente0
- Outcome
- internal ethylene concentration(IEC)e0
- Direction
- decreasede0
- Value
- 61.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hypoxic hypobaria treatment significantly decreased internal ethylene concentration(IEC) by 61.6%”
t0“Apple”
Claim · model-written summary
Other physiological indexes did not differ markedly between hypoxic hypobaria and control.
- Taxon
- appleMalus domesticat0
- Treatment
- hypoxic hypobariae1
- Outcome
- other physiological indexese0
- Direction
- not marked differencee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were not marked difference in other physiological indexes between the treatment and control”
t0“Apple”
e1“hypoxic hypobaria treatment significantly decreased internal ethylene concentration(IEC) by 61.6%”
Claim · model-written summary
1-MCP prevented loss of fruit firmness and peel chlorophyll content.
- Taxon
- appleMalus domesticat0
- Treatment
- 1-MCPe0
- Outcome
- fruits firmness and peel chlorophyll contente0
- Direction
- prevented the decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content”
t0“Apple”
Claim · model-written summary
HH plus 1-MCP prevented loss of fruit firmness and peel chlorophyll content.
- Taxon
- appleMalus domesticat0
- Treatment
- HH+1-MCPe0
- Outcome
- fruits firmness and peel chlorophyll contente0
- Direction
- prevented the decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content”
t0“Apple”
Claim · model-written summary
1-MCP maintained higher titratable acid content.
- Taxon
- appleMalus domesticat0
- Treatment
- 1-MCPe0
- Outcome
- titratable acid contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content”
t0“Apple”
Claim · model-written summary
HH plus 1-MCP maintained higher titratable acid content.
- Taxon
- appleMalus domesticat0
- Treatment
- HH+1-MCPe0
- Outcome
- titratable acid contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content”
t0“Apple”
Claim · model-written summary
1-MCP delayed respiration and ethylene peaks.
- Taxon
- appleMalus domesticat0
- Treatment
- 1-MCPe0
- Outcome
- respiration and ethylene peake0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content,delayed respiration and ethylene peak”
t0“Apple”
Claim · model-written summary
HH plus 1-MCP delayed respiration and ethylene peaks.
- Taxon
- appleMalus domesticat0
- Treatment
- HH+1-MCPe0
- Outcome
- respiration and ethylene peake0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content,delayed respiration and ethylene peak”
t0“Apple”
Claim · model-written summary
1-MCP stimulated SOD, POD and CAT activities.
- Taxon
- appleMalus domesticat0
- Treatment
- 1-MCPe0
- Outcome
- activities of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT)e0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1-MCP and HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content,delayed respiration and ethylene peak,and stimulated activities of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT)”
t0“Apple”
Claim · model-written summary
HH plus 1-MCP stimulated SOD, POD and CAT activities.
- Taxon
- appleMalus domesticat0
- Treatment
- HH+1-MCPe0
- Outcome
- activities of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT)e0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HH+1-MCP treatment prevented the decrease of fruits firmness and peel chlorophyll content,maintained higher titratable acid content,delayed respiration and ethylene peak,and stimulated activities of superoxide dismutase(SOD),peroxidase(POD),and catalase(CAT)”
t0“Apple”
Claim · model-written summary
Postharvest apple ripening was delayed after the treatments.
- Taxon
- applesMalus domesticae0
- Outcome
- postharvest ripeninge0
- Direction
- delayede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postharvest ripening of apples was effectively delayed”
Claim · model-written summary
The authors conclude internal ethylene levels affect 1-MCP action.
- Taxon
- applesMalus domesticae0
- Compound
- internal ethylenee0
- Outcome
- 1-MCP actione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“internal ethylene levels in postharvest apples play a significant role in affecting 1-MCP action”
The same questions in other papers
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3 papers in the same direction as this paper
- positive
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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.