Abstract
The regulation of proline accumulation in polyethylene glycol (PEG, -1.5 MPa) treated rice leaves was investigated. PEG treatment resulted in a decrease in relative water content, indicating that PEG treatment caused water stress in rice leaves. Proline accumulation caused by PEG was related to protein hydrolysis, an increase in ornithine-δ-amino- transferase activity, an increase in the content of ammonia, and an increase in the contents of the precursors of proline biosynthesis, glutamic acid, ornithine, and arginine. Results also show that abscisic acid accumulation is not required for proline accumulation in PEG-treated rice leaves.
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Claims 6
Claim · model-written summary
PEG treatment reduced relative water content in rice leaves.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- Leavest0
- Treatment
- PEG treatmente0
- Outcome
- relative water contente0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PEG treatment resulted in a decrease in relative water content”
t0“Rice Leaves”
Claim · model-written summary
PEG-induced proline accumulation was related to protein hydrolysis.
- Taxon
- riceOryza sativat0
- Organ / stage
- Leavest0
- Treatment
- PEGe0
- Outcome
- Proline accumulatione0
- Direction
- related toe0
- Qualifier
- protein hydrolysise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline accumulation caused by PEG was related to protein hydrolysis”
t0“Rice Leaves”
Claim · model-written summary
PEG-induced proline accumulation was related to increased ornithine-δ-amino-transferase activity.
- Taxon
- riceOryza sativat0
- Treatment
- PEGe0
- Gene
- ornithine-δ-amino- transferasee0
- Outcome
- Proline accumulatione0
- Direction
- related toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline accumulation caused by PEG was related to protein hydrolysis, an increase in ornithine-δ-amino- transferase activity”
t0“Rice Leaves”
Claim · model-written summary
PEG-induced proline accumulation was related to increased ammonia content.
- Taxon
- riceOryza sativat0
- Treatment
- PEGe0
- Compound
- ammoniae0
- Outcome
- Proline accumulatione0
- Direction
- related toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline accumulation caused by PEG was related to protein hydrolysis, an increase in ornithine-δ-amino- transferase activity, an increase in the content of ammonia”
t0“Rice Leaves”
Claim · model-written summary
PEG-induced proline accumulation was related to increased glutamic acid, ornithine and arginine precursors.
- Taxon
- riceOryza sativat0
- Treatment
- PEGe0
- Compound
- glutamic acid, ornithine, and argininee0
- Outcome
- Proline accumulatione0
- Direction
- related toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline accumulation caused by PEG was related to protein hydrolysis, an increase in ornithine-δ-amino- transferase activity, an increase in the content of ammonia, and an increase in the contents of the precursors of proline biosynthesis, glutamic acid, ornithine, and arginine”
t0“Rice Leaves”
Claim · model-written summary
ABA accumulation was not required for PEG-induced proline accumulation.
- Taxon
- riceOryza sativae0
- Organ / stage
- leavese0
- Compound
- abscisic acide0
- Outcome
- proline accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid accumulation is not required for proline accumulation in PEG-treated rice leaves”
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