Abstract
A water stress treatment was imposed on peach trees [ Prunus persica (L.) Batsch `Kansuke Hakuto' (Peach Group)] to elucidate the relationship among sugar accumulation, sugar metabolism, and abscisic acid (ABA) in fruit under water stress. Treatment was carried out on peach trees grown in containers from 8 July 1996 [80 days after full bloom (DAFB)] for 16 days, to achieve a predawn water potential of -0.8 to -1.1 MPa compared to that of -0.4 to -0.6 MPa in control trees. Levels of sorbitol, sucrose, and total sugars, as well as the activity of sorbitol oxidase increased in fruit of water stressed trees under moderate water stress (-0.8 MPa), whereas under severe water stress (-1.1 MPa), no difference between the waterstressed trees and the controls was observed. Water stress also induced an increase in ABA in the fruit. These initial results indicated that water-stress-induced ABA accelerated sugar accumulation in peaches by activating sorbitol metabolism.
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Claims 5
Claim · model-written summary
Moderate water stress increased fruit sorbitol, sucrose and total sugars.
- Taxon
- Peaches
Prunus persicat0 - Organ / stage
- fruite0
- Treatment
- moderate water stresse0
- Outcome
- sorbitol, sucrose, and total sugarse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Levels of sorbitol, sucrose, and total sugars, as well as the activity of sorbitol oxidase increased in fruit of water stressed trees under moderate water stress (-0.8 MPa)”
t0“Peaches”
Claim · model-written summary
Moderate water stress increased fruit sorbitol oxidase activity.
- Taxon
- PeachesPrunus persicat0
- Treatment
- moderate water stresse0
- Gene
- sorbitol oxidasee0
- Outcome
- activity of sorbitol oxidasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activity of sorbitol oxidase increased in fruit of water stressed trees under moderate water stress (-0.8 MPa)”
t0“Peaches”
Claim · model-written summary
Severe water stress showed no difference from controls for these fruit measures.
- Taxon
- PeachesPrunus persicat0
- Treatment
- severe water stresse0
- Outcome
- no differencee0
- Direction
- no differencee0
- Comparator
- the controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under severe water stress (-1.1 MPa), no difference between the waterstressed trees and the controls was observed”
t0“Peaches”
Claim · model-written summary
Water stress increased fruit ABA.
- Taxon
- PeachesPrunus persicat0
- Treatment
- Water stresse0
- Outcome
- ABA in the fruite0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress also induced an increase in ABA in the fruit”
t0“Peaches”
Claim · model-written summary
The authors inferred that ABA accelerated sugar accumulation through sorbitol metabolism.
- Taxon
- peachesPrunus persicae0
- Compound
- ABAe0
- Outcome
- sugar accumulatione0
- Direction
- acceleratede0
- Qualifier
- activating sorbitol metabolisme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water-stress-induced ABA accelerated sugar accumulation in peaches by activating sorbitol metabolism”
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See all 8 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.