Abstract
In greenhouse experiments, Aychade, a fragrant rice variety, was grown under one level of salt solution (EC of 3800 ± 400 μS·cm(-1)) sufficient to induce salt stress in rice. Timing and duration of salt solution application varied according to the growth stages. 2-Acetyl-1-pyrroline (2AP), a characteristic flavor compound of fragrant rice as well as biogenetically related compounds, proline, and γ-aminobutyric acid (GABA) were quantified. Salt treatments induced 2AP synthesis in the leaves, but the increase was often higher in the vegetative phase. This increase was correlated with proline level but not with that of GABA. Interestingly the grains from all the salt treated plants contained significantly higher levels of 2AP (733-998 μg·kg(-1)) than those from the control (592 μg·kg(-1)). The highest 2AP synthesis occurred when the plants were subjected to salt treatment during whole vegetative or reproductive phases. However in the latter case crop yield decreased significantly.
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Claims 7
Claim · model-written summary
Salt treatments induced 2AP synthesis in rice leaves.
- Taxon
- rice
Oryza sativae0 - Material
- Aychadee0
- Organ / stage
- leavese1
- Treatment
- Salt treatmentse1
- Outcome
- 2AP synthesise1
- Direction
- inducede1
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e1“Salt treatments induced 2AP synthesis in the leaves, but the increase was often higher in the vegetative phase”
Claim · model-written summary
The leaf 2AP increase under salt treatment was often higher in the vegetative phase.
- Taxon
- riceOryza sativae0
- Organ / stage
- vegetative phasee1
- Treatment
- Salt treatmentse1
- Outcome
- 2AP synthesise1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e1“Salt treatments induced 2AP synthesis in the leaves, but the increase was often higher in the vegetative phase”
Claim · model-written summary
The 2AP increase was correlated with proline level in rice.
- Taxon
- riceOryza sativae0
- Compound
- prolinee2
- Outcome
- 2AP synthesise1
- Direction
- correlatede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e1“Salt treatments induced 2AP synthesis in the leaves, but the increase was often higher in the vegetative phase”
e2“This increase was correlated with proline level but not with that of GABA”
Claim · model-written summary
The 2AP increase was not correlated with GABA level in rice.
- Taxon
- riceOryza sativae0
- Compound
- GABAe2
- Outcome
- 2AP synthesise1
- Direction
- but not withe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e1“Salt treatments induced 2AP synthesis in the leaves, but the increase was often higher in the vegetative phase”
e2“This increase was correlated with proline level but not with that of GABA”
Claim · model-written summary
Grains from salt-treated plants had significantly higher 2AP than control grains.
- Taxon
- riceOryza sativae0
- Organ / stage
- grainse3
- Treatment
- salt treated plantse3
- Outcome
- levels of 2APe3
- Direction
- significantly highere3
- Value
- 733-998 μg·kg(-1)e3
- Qualifier
- 592 μg·kg(-1)e3
- Comparator
- controle3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e3“the grains from all the salt treated plants contained significantly higher levels of 2AP (733-998 μg·kg(-1)) than those from the control (592 μg·kg(-1))”
Claim · model-written summary
The highest 2AP synthesis occurred when salt treatment covered the whole vegetative or reproductive phases.
- Taxon
- riceOryza sativae0
- Treatment
- salt treatment during whole vegetative or reproductive phasese4
- Outcome
- 2AP synthesise4
- Direction
- higheste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e4“The highest 2AP synthesis occurred when the plants were subjected to salt treatment during whole vegetative or reproductive phases. However in the latter case crop yield decreased significantly”
Claim · model-written summary
Salt treatment during reproductive phases decreased crop yield significantly.
- Taxon
- riceOryza sativae0
- Organ / stage
- reproductive phasese4
- Treatment
- salt treatmente4
- Outcome
- crop yielde4
- Direction
- decreased significantlye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In greenhouse experiments, Aychade, a fragrant rice variety”
e4“The highest 2AP synthesis occurred when the plants were subjected to salt treatment during whole vegetative or reproductive phases. However in the latter case crop yield decreased significantly”
The same questions in other papers
salinity · yield · Oryza sativa (rice)Positive and negative results
137 papers in the same direction as this paper · 29 in the opposite direction
- negative
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