Abstract
Kiwifruit (Actinidia deliciosa (A. Chev.) C. F. Liang et A. R. Ferguson cv. Bruno) was used toinvestigate the effects of acetylsalicylic acid (ASA, 1.0 mmol/L, pH 3.5) and ethylene (100 mL/L) treat-ments on changes at endogenous salicylic acid (SA) levels and other senescence-related factors duringfruit ripening and softening at 20 ℃. The level of endogenous SA in ripening fruits declined and a closerelationship was observed between the change at endogenous SA level and the rate of fruit ripening andsoftening. ASA treatment elevated SA level in the fruit, slowed down the increases in lipoxygenase (LOX)and allene oxide synthase (AOS) activities, decreased the O22-. production in the preclimacteric phase andthe early phase of ethylene climacteric rise, maintained the stability of cell membrane, inhibited ethylenebiosynthesis, postponed the onset of the ethylene climacteric, and delayed the process of fruit ripeningand softening. On the contrary, application of ethylene to ripening kiwifruit resulted at a lower SA level, anaccelerated increases in the activities of LOX and AOS and the rate of O22-. production, an elevated relativeelectric conductivity and an advanced onset of ethylene climacteric, and a quicker fruit ripening andsoftening. It is suggested that the effects of ASA on ripening kiwifruit can be attributed to its ability toscavenge O22-. and/or to maintain stability of cell membrane.
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Claims 16
Claim · model-written summary
Endogenous salicylic acid declined during ripening.
- Taxon
- Kiwifruit
Actinidia deliciosat0 - Organ / stage
- ripening fruitse0
- Outcome
- endogenous SAe0
- Direction
- declinede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The level of endogenous SA in ripening fruits declined”
t0“Kiwifruit”
Claim · model-written summary
Endogenous SA change was closely related to fruit ripening and softening rates.
- Taxon
- KiwifruitActinidia deliciosat0
- Compound
- endogenous SAe0
- Outcome
- rate of fruit ripening andsofteninge0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a closerelationship was observed between the change at endogenous SA level and the rate of fruit ripening andsoftening.”
t0“Kiwifruit”
Claim · model-written summary
ASA elevated fruit SA level.
- Taxon
- KiwifruitActinidia deliciosat0
- Treatment
- ASA treatmente0
- Outcome
- SA level in the fruite0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASA treatment elevated SA level in the fruit”
t0“Kiwifruit”
Claim · model-written summary
ASA slowed increases in LOX and AOS activity.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- lipoxygenase (LOX)and allene oxide synthase (AOS) activitiese0
- Direction
- slowed downe0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slowed down the increases in lipoxygenase (LOX)and allene oxide synthase (AOS) activities”
t0“Kiwifruit”
Claim · model-written summary
ASA decreased O22-. production in early ripening.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- O22-. productione0
- Direction
- decreasede0
- Qualifier
- preclimacteric phase andthe early phase of ethylene climacteric risee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased the O22-. production in the preclimacteric phase andthe early phase of ethylene climacteric rise”
t0“Kiwifruit”
Claim · model-written summary
ASA maintained cell membrane stability.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- stability of cell membranee0
- Direction
- maintainede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintained the stability of cell membrane”
t0“Kiwifruit”
Claim · model-written summary
ASA inhibited ethylene biosynthesis.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- ethylenebiosynthesise0
- Direction
- inhibitede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibited ethylenebiosynthesis”
t0“Kiwifruit”
Claim · model-written summary
ASA postponed ethylene climacteric onset.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- onset of the ethylene climacterice0
- Direction
- postponede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“postponed the onset of the ethylene climacteric”
t0“Kiwifruit”
Claim · model-written summary
ASA delayed fruit ripening and softening.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- fruit ripeningand softeninge0
- Direction
- delayede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“delayed the process of fruit ripeningand softening”
t0“Kiwifruit”
Claim · model-written summary
Ethylene lowered SA levels.
- Taxon
- kiwifruitActinidia deliciosae0
- Treatment
- application of ethylenee0
- Outcome
- SA levele0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of ethylene to ripening kiwifruit resulted at a lower SA level”
Claim · model-written summary
Ethylene accelerated LOX and AOS activity increases.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- activities of LOX and AOSe0
- Direction
- anacceleratede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“anaccelerated increases in the activities of LOX and AOS”
t0“Kiwifruit”
Claim · model-written summary
Ethylene accelerated O22-. production.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- rate of O22-. productione0
- Direction
- anacceleratede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“anaccelerated increases in the activities of LOX and AOS and the rate of O22-. production”
t0“Kiwifruit”
Claim · model-written summary
Ethylene elevated relative electric conductivity.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- relativeelectric conductivitye0
- Direction
- elevatede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an elevated relativeelectric conductivity”
t0“Kiwifruit”
Claim · model-written summary
Ethylene advanced climacteric onset.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- onset of ethylene climacterice0
- Direction
- advancede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an advanced onset of ethylene climacteric”
t0“Kiwifruit”
Claim · model-written summary
Ethylene quickened fruit ripening and softening.
- Taxon
- KiwifruitActinidia deliciosat0
- Outcome
- fruit ripening andsofteninge0
- Direction
- quickere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a quicker fruit ripening andsoftening”
t0“Kiwifruit”
Claim · model-written summary
Authors attribute ASA effects to scavenging O22-. or membrane stabilization.
- Taxon
- kiwifruitActinidia deliciosae0
- Outcome
- effects of ASA on ripening kiwifruite0
- Qualifier
- ability toscavenge O22-. and/or to maintain stability of cell membranee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is suggested that the effects of ASA on ripening kiwifruit can be attributed to its ability toscavenge O22-. and/or to maintain stability of cell membrane.”
The same questions in other papers
acetylsalicylic acid · physiology: hormones · Actinidia deliciosa (kiwifruit)Positive and negative results
1 in the opposite direction
- negative
ethene · physiology: hormones · Actinidia deliciosa (kiwifruit)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.