Abstract
Water deficit is one of the most important environmental stresses limiting plant growth and crop yield. While the identification of many key factors involved in the plant water deficit response has greatly increased our knowledge about the regulation system, the mechanisms underlying dehydration tolerance in plants are still not well understood. In our current study, we investigated the roles of the key flowering time regulator, OsGIGANTEA (OsGI), in the osmotic stress tolerance in rice. Results showed that mutation of OsGI conferred tolerance to osmotic stress generated by polyethylene glycol (PEG), increased proline and sucrose contents, and accelerated stomata movement. In addition, qRT-PCR and microarray analysis revealed that the transcript abundance of some osmotic stress response genes, such as OsDREB1E, OsAP37, OsAP59, OsLIP9, OsLEA3, OsRAB16A, and OsSalT, was significantly higher in osgi than in WT plants, suggesting that OsGI might be a negative regulator in the osmotic stress response in rice.
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Claims 6
Claim · model-written summary
OsGI mutation conferred tolerance to PEG-generated osmotic stress in rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- mutation of OsGIe0
- Gene
- OsGIe0
- Outcome
- tolerance to osmotic stresse0
- Qualifier
- generated by polyethylene glycol (PEG)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“mutation of OsGI conferred tolerance to osmotic stress generated by polyethylene glycol (PEG)”
Claim · model-written summary
OsGI mutation increased proline content in rice.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“mutation of OsGI conferred tolerance to osmotic stress generated by polyethylene glycol (PEG), increased proline and sucrose contents”
Claim · model-written summary
OsGI mutation increased sucrose content in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- mutation of OsGIe0
- Gene
- OsGIe0
- Outcome
- sucrose contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“mutation of OsGI conferred tolerance to osmotic stress generated by polyethylene glycol (PEG), increased proline and sucrose contents”
Claim · model-written summary
OsGI mutation accelerated stomata movement in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- mutation of OsGIe0
- Gene
- OsGIe0
- Outcome
- stomata movemente0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“mutation of OsGI conferred tolerance to osmotic stress generated by polyethylene glycol (PEG), increased proline and sucrose contents, and accelerated stomata movement”
Claim · model-written summary
Osmotic stress response gene transcripts were significantly higher in osgi than WT rice plants.
- Taxon
- RiceOryza sativat0
- Material
- osgie0
- Gene
- OsDREB1E, OsAP37, OsAP59, OsLIP9, OsLEA3, OsRAB16A, and OsSalTe0
- Outcome
- transcript abundance of some osmotic stress response genese0
- Direction
- highere0
- Comparator
- WT plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“the transcript abundance of some osmotic stress response genes, such as OsDREB1E, OsAP37, OsAP59, OsLIP9, OsLEA3, OsRAB16A, and OsSalT, was significantly higher in osgi than in WT plants”
Claim · model-written summary
The authors suggest that OsGI may negatively regulate the osmotic stress response in rice.
- Taxon
- RiceOryza sativat0
- Gene
- OsGIe0
- Outcome
- osmotic stress responsee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“OsGI might be a negative regulator in the osmotic stress response in rice”
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