Abstract
The interactions between jasmonates [jasmonic acid (JA) and methyl jasmonate (MeJA)] and abscisic acid (ABA) were investigated in 'Tsugaru' apple (Malus pumila Mill. var. domestica Schneid.). In Exp. 1, discs from pulp excised 93 days after full bloom (DAFB)(preclimacteric), 112 DAFB (climacteric), and 133 DAFB (postclimacteric) were collected and placed in petri dishes containing a solution of 0.4 M mannitol with a combination of MeJA, ABA, and aminoethoxyvinylglycine (AVG). Jasmonates, ABA, and ethylene levels in the discs were measured at 0, 24, 48, and 72 hr after the initiation of treatment. At the climacteric and postclimacteric stages, the ABA treatment increased endogenous JA concentration and decreased it when combined with AVG. This result suggests that ethylene may be related to the induction of endogenous JA by ABA. MeJA treatment decreased endogenous ABA concentration from 93 to 133 DAFB, whereas AVG had no influence. This result also demonstrates that jasmonates may influence endogenous ABA synthesis independently from ethylene. In Exp. 2 when discs with skins from the apple pulp samples from preclimacteric, climacteric, and postclimacteric stages were excised, cultured for 7 days under light on B5 media containing MeJA, and the combination of MeJA and AVG was investigated, MeJA and MeJA combined with AVG stimulated greater anthocyanin accumulation in both sampling stages compared to the untreated control ; the combination of MeJA and AVG resulted in a lower concentration of anthocyanin than that of only MeJA at the preclimacteric and postclimacteric stages. Therefore, in most cases, jasmonates may be related to anthocyanin formation in apples in the presence and absence of ethylene.
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Claims 10
Claim · model-written summary
In 'Tsugaru' apple pulp discs at the climacteric and postclimacteric stages, ABA treatment increased endogenous JA concentration.
- Taxon
- apple
Malus domesticae1 - Material
- Tsugarue1
- Organ / stage
- climacteric and postclimacteric stagese0
- Treatment
- ABA treatmente0
- Outcome
- endogenous JA concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e0“At the climacteric and postclimacteric stages, the ABA treatment increased endogenous JA concentration and decreased it when combined with AVG”
Claim · model-written summary
In 'Tsugaru' apple discs at the climacteric and postclimacteric stages, ABA combined with AVG decreased endogenous JA concentration.
- Taxon
- appleMalus domesticae1
- Material
- Tsugarue1
- Organ / stage
- climacteric and postclimacteric stagese0
- Treatment
- combined with AVGe0
- Outcome
- endogenous JA concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e0“At the climacteric and postclimacteric stages, the ABA treatment increased endogenous JA concentration and decreased it when combined with AVG”
Claim · model-written summary
The authors suggest that ethylene may be related to the induction of endogenous JA by ABA.
- Taxon
- appleMalus domesticae1
- Compound
- ethylenee2
- Outcome
- induction of endogenous JA by ABAe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e2“This result suggests that ethylene may be related to the induction of endogenous JA by ABA”
Claim · model-written summary
MeJA treatment decreased endogenous ABA concentration in 'Tsugaru' apple discs from 93 to 133 DAFB.
- Taxon
- appleMalus domesticae1
- Treatment
- MeJA treatmente3
- Outcome
- endogenous ABA concentratione3
- Direction
- decreasede3
- Qualifier
- from 93 to 133 DAFBe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e3“MeJA treatment decreased endogenous ABA concentration from 93 to 133 DAFB, whereas AVG had no influence”
Claim · model-written summary
AVG had no influence on endogenous ABA concentration in 'Tsugaru' apple discs from 93 to 133 DAFB.
- Taxon
- appleMalus domesticae1
- Treatment
- AVGe3
- Outcome
- endogenous ABA concentratione3
- Direction
- no influencee3
- Qualifier
- from 93 to 133 DAFBe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e3“MeJA treatment decreased endogenous ABA concentration from 93 to 133 DAFB, whereas AVG had no influence”
Claim · model-written summary
The authors suggest jasmonates may influence endogenous ABA synthesis independently from ethylene.
- Taxon
- appleMalus domesticae1
- Compound
- jasmonatese4
- Outcome
- endogenous ABA synthesise4
- Qualifier
- independently from ethylenee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e4“jasmonates may influence endogenous ABA synthesis independently from ethylene”
Claim · model-written summary
MeJA stimulated greater anthocyanin accumulation than the untreated control in cultured discs with skin from 'Tsugaru' apple at both sampling stages.
- Taxon
- appleMalus domesticae1
- Treatment
- MeJAe5
- Outcome
- anthocyanin accumulatione5
- Direction
- greatere5
- Qualifier
- both sampling stagese5
- Comparator
- untreated controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e5“MeJA and MeJA combined with AVG stimulated greater anthocyanin accumulation in both sampling stages compared to the untreated control”
Claim · model-written summary
MeJA combined with AVG stimulated greater anthocyanin accumulation than the untreated control in cultured discs with skin from 'Tsugaru' apple at both sampling stages.
- Taxon
- appleMalus domesticae1
- Treatment
- MeJA combined with AVGe5
- Outcome
- anthocyanin accumulatione5
- Direction
- greatere5
- Qualifier
- both sampling stagese5
- Comparator
- untreated controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e5“MeJA and MeJA combined with AVG stimulated greater anthocyanin accumulation in both sampling stages compared to the untreated control”
Claim · model-written summary
The combination of MeJA and AVG resulted in a lower anthocyanin concentration than MeJA alone at the preclimacteric and postclimacteric stages.
- Taxon
- appleMalus domesticae1
- Organ / stage
- preclimacteric and postclimacteric stagese6
- Treatment
- combination of MeJA and AVGe6
- Outcome
- concentration of anthocyanine6
- Direction
- lowere6
- Comparator
- only MeJAe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“'Tsugaru' apple”
e6“the combination of MeJA and AVG resulted in a lower concentration of anthocyanin than that of only MeJA at the preclimacteric and postclimacteric stages”
Claim · model-written summary
The authors conclude that in most cases jasmonates may be related to anthocyanin formation in apples in the presence and absence of ethylene.
- Taxon
- applesMalus domesticae7
- Compound
- jasmonatese7
- Outcome
- anthocyanin formatione7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“jasmonates may be related to anthocyanin formation in apples in the presence and absence of ethylene”
The same questions in other papers
(-)-methyl jasmonate · quality: phytochemicals · Malus domestica (apple)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.