Abstract
Background. Nitric oxide (NO) is an important signaling molecule which could regulate different aspects of fruit ripening and senescence. However, the effects of NO treatment on the aroma volatiles of postharvest peaches is rarely reported. Materials and methods. In the present study, 'Xiahui 6' peaches were fumigated with 10 LL -1 NO for 3 h, then stored at 20C for 9 days. Fruit firmness, SSC, TA, ethylene production, the content of fatty acids and aroma volatiles, and related gene expression were evaluated during storage. Results. Nitric oxide significantly maintained higher fruit firmness, SSC and TA at the end of storage, thus maintaining higher fruit quality. The gene expression of PpACS1/3, PpACO were significantly depressed in NO-treated peaches, which resulted in the reduction of ethylene production. In addition, NO treatment delayed the decline of C6 volatiles, inhibited the formation of esters and lactones supported by a lower expression level of PpLOX3/4, PpAAT1/2, PpACX1/2/3/4, PpFAD1/3 and a higher transcript abundance of PpLOX2, PpHPL1, PpADH1. Additionally, the content of PA, SA, OA, LA and LeA reduced in response to NO treatment during the second half of storage, accompanied by a lower mRNA level in PpFAD1/2/3. Conclusions. The effects of NO on peach aroma volatiles during storage were novel among the study of NO in peaches. In this study, NO maintained higher fruit quality, delayed the ripening and senescence of peach fruit after harvest. For aroma volatiles, NO maintained higher levels of C6 volatiles and reduced the content of esters and lactones in peaches, as well as the content of PA, SA, OA and LeA. These results together suggest that the effects of NO on peach aroma volatiles are a result of the regulation of genes related with the biosynthesis of aroma compounds, ethylene and fatty acids.
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Claims 11
Claim · model-written summary
NO treatment maintained higher peach fruit firmness, SSC and TA at the end of storage.
- Taxon
- peaches
Prunus persicae1 - Material
- 'Xiahui 6'e1
- Treatment
- 10 LL -1 NO for 3 he1
- Outcome
- fruit firmness, SSC and TAe0
- Direction
- highere0
- Setting
- 20C for 9 dayse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitric oxide significantly maintained higher fruit firmness, SSC and TA at the end of storage”
e1“'Xiahui 6' peaches were fumigated with 10 LL -1 NO for 3 h, then stored at 20C for 9 days”
Claim · model-written summary
NO treatment depressed expression of PpACS1/3 and PpACO.
- Taxon
- peachesPrunus persicae0
- Treatment
- NO-treatede0
- Gene
- PpACS1/3, PpACOe0
- Outcome
- gene expression of PpACS1/3, PpACOe0
- Direction
- depressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The gene expression of PpACS1/3, PpACO were significantly depressed in NO-treated peaches”
Claim · model-written summary
NO treatment reduced ethylene production in peaches.
- Taxon
- peachesPrunus persicae0
- Treatment
- NO-treatede0
- Outcome
- ethylene productione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO-treated peaches, which resulted in the reduction of ethylene production”
Claim · model-written summary
NO treatment delayed the decline of C6 volatiles.
- Taxon
- peachesPrunus persicae1
- Treatment
- NO treatmente0
- Outcome
- C6 volatilese0
- Direction
- delayed the declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO treatment delayed the decline of C6 volatiles”
e1“postharvest peaches”
Claim · model-written summary
NO treatment inhibited ester formation.
- Taxon
- peachesPrunus persicae1
- Treatment
- NO treatmente0
- Outcome
- formation of esterse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO treatment delayed the decline of C6 volatiles, inhibited the formation of esters and lactones”
e1“postharvest peaches”
Claim · model-written summary
NO treatment inhibited lactone formation.
- Taxon
- peachesPrunus persicae2
- Treatment
- NO treatmente1
- Outcome
- lactonese0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibited the formation of esters and lactones”
e1“NO treatment delayed the decline of C6 volatiles”
e2“postharvest peaches”
Claim · model-written summary
NO treatment lowered expression of PpLOX3/4, PpAAT1/2, PpACX1/2/3/4 and PpFAD1/3.
- Taxon
- peachesPrunus persicae2
- Treatment
- NO treatmente1
- Gene
- PpLOX3/4, PpAAT1/2, PpACX1/2/3/4, PpFAD1/3e0
- Outcome
- expression level of PpLOX3/4, PpAAT1/2, PpACX1/2/3/4, PpFAD1/3e0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a lower expression level of PpLOX3/4, PpAAT1/2, PpACX1/2/3/4, PpFAD1/3”
e1“NO treatment delayed the decline of C6 volatiles”
e2“postharvest peaches”
Claim · model-written summary
NO treatment raised transcript abundance of PpLOX2, PpHPL1 and PpADH1.
- Taxon
- peachesPrunus persicae2
- Treatment
- NO treatmente1
- Gene
- PpLOX2, PpHPL1, PpADH1e0
- Outcome
- transcript abundance of PpLOX2, PpHPL1, PpADH1e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a higher transcript abundance of PpLOX2, PpHPL1, PpADH1”
e1“NO treatment delayed the decline of C6 volatiles”
e2“postharvest peaches”
Claim · model-written summary
NO treatment reduced PA, SA, OA, LA and LeA content during the second half of storage.
- Taxon
- peachesPrunus persicae1
- Treatment
- NO treatmente0
- Outcome
- content of PA, SA, OA, LA and LeAe0
- Direction
- reducede0
- Qualifier
- during the second half of storagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of PA, SA, OA, LA and LeA reduced in response to NO treatment during the second half of storage”
e1“postharvest peaches”
Claim · model-written summary
NO treatment was accompanied by lower PpFAD1/2/3 mRNA levels.
- Taxon
- peachesPrunus persicae1
- Treatment
- NO treatmente0
- Gene
- PpFAD1/2/3e0
- Outcome
- mRNA level in PpFAD1/2/3e0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO treatment during the second half of storage, accompanied by a lower mRNA level in PpFAD1/2/3”
e1“postharvest peaches”
Claim · model-written summary
NO treatment delayed peach fruit ripening and senescence after harvest.
- Taxon
- peachPrunus persicae0
- Treatment
- NOe0
- Outcome
- ripening and senescence of peach fruite0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NO maintained higher fruit quality, delayed the ripening and senescence of peach fruit after harvest”
The same questions in other papers
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1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
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nitric oxide · physiology: hormones · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
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nitric oxide · quality: postharvest · Prunus persica (peach)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.