Abstract
Low-temperature storage is a widely used method for peach fruit storage. However, the impact of PpCBFs on pectin degradation during low-temperature storage is unclear. As such, in this study, we stored the melting-flesh peach cultivar "Fuli" at low temperature (LT, 6°C) and room temperature (RT, 25°C) to determine the effect of different temperatures on its physiological and biochemical changes. Low-temperature storage can inhibit the softening of "Fuli" peaches by maintaining the stability of the cell wall. It was found that the contents of water-soluble pectin and ionic-soluble pectin in peach fruit stored at RT were higher than those stored at LT. The enzyme activities of polygalacturonase (PG), pectate lyase (PL), and pectin methylesterase (PME) were all inhibited by LT. The expressions of PpPME3, PpPL2, and PpPG were closely related to fruit firmness, but PpCBF2 and PpCBF3 showed higher expression levels at LT than RT. The promoters of PpPL2 and PpPG contain the DER motif, which suggested that PpCBF2 and PpCBF3 might negatively regulate their expression by directly binding to their promoters. These results indicated that LT may maintain firmness by activating PpCBFs to repress pectin-degradation-related enzyme genes during storage.
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Claims 9
Claim · model-written summary
Low temperature inhibited softening of Fuli peaches by maintaining cell wall stability.
- Taxon
- peaches
Prunus persicae0 - Material
- Fulie0
- Treatment
- Low-temperature storagee0
- Outcome
- softeninge0
- Direction
- inhibite0
- Qualifier
- maintaining the stability of the cell walle0
- Comparator
- room temperature (RT, 25°C)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low-temperature storage can inhibit the softening of "Fuli" peaches by maintaining the stability of the cell wall”
e1“room temperature (RT, 25°C)”
Claim · model-written summary
Water-soluble pectin content was higher at room temperature than low temperature.
- Taxon
- peachPrunus persicae0
- Treatment
- RTe0
- Outcome
- contents of water-soluble pectine0
- Direction
- highere0
- Comparator
- LTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of water-soluble pectin and ionic-soluble pectin in peach fruit stored at RT were higher than those stored at LT”
Claim · model-written summary
Ionic-soluble pectin content was higher at room temperature than low temperature.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of water-soluble pectin and ionic-soluble pectin in peach fruit stored at RT were higher than those stored at LT”
Claim · model-written summary
Low temperature inhibited PG, PL and PME enzyme activities.
- Taxon
- peachPrunus persicat0
- Treatment
- LTe0
- Outcome
- enzyme activities of polygalacturonase (PG), pectate lyase (PL), and pectin methylesterase (PME)e0
- Direction
- inhibitede0
- Comparator
- room temperature (RT, 25°C)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enzyme activities of polygalacturonase (PG), pectate lyase (PL), and pectin methylesterase (PME) were all inhibited by LT”
e1“room temperature (RT, 25°C)”
t0“peach”
Claim · model-written summary
PpPME3, PpPL2 and PpPG expression was closely related to fruit firmness.
- Taxon
- peachPrunus persicat0
- Gene
- PpPME3, PpPL2, and PpPGe0
- Outcome
- fruit firmnesse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The expressions of PpPME3, PpPL2, and PpPG were closely related to fruit firmness”
t0“peach”
Claim · model-written summary
PpCBF2 and PpCBF3 expression was higher at low than room temperature.
- Taxon
- peachPrunus persicat0
- Treatment
- LTe0
- Gene
- PpCBF2 and PpCBF3e0
- Outcome
- expression levelse0
- Direction
- highere0
- Comparator
- RTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PpCBF2 and PpCBF3 showed higher expression levels at LT than RT”
t0“peach”
Claim · model-written summary
The PpPL2 and PpPG promoters contain the DER motif.
- Taxon
- peachPrunus persicat0
- Gene
- PpPL2 and PpPGe0
- Outcome
- contain the DER motife0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The promoters of PpPL2 and PpPG contain the DER motif”
t0“peach”
Claim · model-written summary
The authors suggest PpCBF2 and PpCBF3 may repress PpPL2 and PpPG by binding their promoters.
- Taxon
- peachPrunus persicat0
- Gene
- PpCBF2 and PpCBF3e0
- Outcome
- negatively regulate their expressione0
- Qualifier
- directly binding to their promoterse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PpCBF2 and PpCBF3 might negatively regulate their expression by directly binding to their promoters”
e1“The promoters of PpPL2 and PpPG contain the DER motif”
t0“peach”
Claim · model-written summary
The authors infer low temperature may maintain firmness through PpCBF activation and repression of pectin-degradation genes.
- Taxon
- peachPrunus persicat0
- Treatment
- LTe0
- Gene
- PpCBFse0
- Outcome
- maintain firmnesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LT may maintain firmness by activating PpCBFs to repress pectin-degradation-related enzyme genes during storage”
t0“peach”
The same questions in other papers
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- negative
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- no effect
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See all 59 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.