Abstract
‘Ruixue’ apples were used as the test material to study the effect of 10 μM methyl jasmonate (MeJA) on the quality and cell wall metabolism of apples after 18 d of storage. The results showed that MeJA significantly decreased the respiratory rate, reduced the titratable acid content and maintained a high soluble solids content. MeJA has been shown to suppress the activities and gene expressions of WSP, CSP, ISP, and cellulose in contrast to the control group, thereby maintaining a lower cell permeability and higher exocarp firmness. MeJA significantly decreased the expression of MdACS, MdACO, MdPL, Mdgal, and MdPG genes in the apple exocarp when compared to the control group. In addition, the overexpression of MdPL18 increased the content of cell wall polysaccharides such as WSP and CSP, enhanced cell wall-degrading enzyme activities, and accelerated fruit ripening and softening, whereas silencing MdPL18 did the opposite. Together, these results demonstrate that exogenous MeJA maintains the Ruixue apple fruit quality by regulating the metabolism of cell wall substances.
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Claims 13
Claim · model-written summary
MeJA significantly decreased apple respiratory rate.
- Taxon
- Apple
Malus domesticat0 - Treatment
- MeJAe0
- Outcome
- respiratory ratee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly decreased the respiratory rate, reduced the titratable acid content and maintained a high soluble solids content”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA reduced apple titratable acid content.
- Taxon
- AppleMalus domesticat0
- Treatment
- MeJAe0
- Outcome
- titratable acid contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly decreased the respiratory rate, reduced the titratable acid content and maintained a high soluble solids content”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA maintained high apple soluble solids content.
- Taxon
- AppleMalus domesticat0
- Treatment
- MeJAe0
- Outcome
- soluble solids contente0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly decreased the respiratory rate, reduced the titratable acid content and maintained a high soluble solids content”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA suppressed activities of WSP, CSP, and ISP relative to control.
- Taxon
- AppleMalus domesticat0
- Treatment
- MeJAe0
- Gene
- WSP, CSP, ISPe0
- Outcome
- activitiese0
- Direction
- suppresse0
- Comparator
- the control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA has been shown to suppress the activities and gene expressions of WSP, CSP, ISP, and cellulose in contrast to the control group”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA suppressed expression of WSP, CSP, ISP, and cellulose relative to control.
- Taxon
- AppleMalus domesticat0
- Treatment
- MeJAe0
- Gene
- WSP, CSP, ISP, and cellulosee0
- Outcome
- gene expressionse0
- Direction
- suppresse0
- Comparator
- the control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA has been shown to suppress the activities and gene expressions of WSP, CSP, ISP, and cellulose in contrast to the control group”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA maintained lower apple cell permeability.
- Taxon
- AppleMalus domesticat0
- Outcome
- cell permeabilitye0
- Direction
- lowere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereby maintaining a lower cell permeability and higher exocarp firmness”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA maintained higher apple exocarp firmness.
- Taxon
- AppleMalus domesticat0
- Outcome
- exocarp firmnesse0
- Direction
- highere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereby maintaining a lower cell permeability and higher exocarp firmness”
t0“Apple Fruit Quality”
Claim · model-written summary
MeJA significantly decreased MdACS, MdACO, and MdPL expression in apple exocarp.
- Taxon
- appleMalus domesticae0
- Organ / stage
- exocarpe0
- Treatment
- MeJAe0
- Gene
- MdACS, MdACO, MdPLe0
- Outcome
- expressione0
- Direction
- decreasede0
- Comparator
- the control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly decreased the expression of MdACS, MdACO, MdPL, Mdgal, and MdPG genes in the apple exocarp when compared to the control group”
Claim · model-written summary
MeJA significantly decreased Mdgal and MdPG expression in apple exocarp.
- Taxon
- appleMalus domesticae0
- Organ / stage
- exocarpe0
- Treatment
- MeJAe0
- Gene
- Mdgal, and MdPGe0
- Outcome
- expressione0
- Direction
- decreasede0
- Comparator
- the control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MeJA significantly decreased the expression of MdACS, MdACO, MdPL, Mdgal, and MdPG genes in the apple exocarp when compared to the control group”
Claim · model-written summary
MdPL18 overexpression increased WSP and CSP content.
- Taxon
- AppleMalus domesticat0
- Treatment
- overexpression of MdPL18e0
- Gene
- MdPL18e0
- Outcome
- content of cell wall polysaccharides such as WSP and CSPe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the overexpression of MdPL18 increased the content of cell wall polysaccharides such as WSP and CSP”
t0“Apple Fruit Quality”
Claim · model-written summary
MdPL18 overexpression enhanced cell wall-degrading enzyme activities.
- Taxon
- AppleMalus domesticat0
- Outcome
- cell wall-degrading enzyme activitiese0
- Direction
- enhancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced cell wall-degrading enzyme activities”
t0“Apple Fruit Quality”
Claim · model-written summary
MdPL18 overexpression accelerated fruit ripening and softening.
- Taxon
- AppleMalus domesticat0
- Outcome
- fruit ripening and softeninge0
- Direction
- acceleratede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accelerated fruit ripening and softening”
t0“Apple Fruit Quality”
Claim · model-written summary
Silencing MdPL18 had effects opposite to its overexpression.
- Taxon
- AppleMalus domesticat0
- Treatment
- silencing MdPL18e0
- Gene
- MdPL18e0
- Outcome
- the oppositee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas silencing MdPL18 did the opposite”
t0“Apple Fruit Quality”
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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.