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Author Li S., Yue W., Wang M., Qiu W., Zhou L., Shou H.
Title Mutation of OsGIGANTEA Leads to Enhanced Tolerance to Polyethylene Glycol-Generated Osmotic Stress in Rice.
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.
Journal Front Plant Sci
Country China
Volume 7
Pages 465
Year 2016
PubMed ID 27148296
PubMed Central ID 4834575
DOI 10.3389/fpls.2016.00465
URL -
Relation
Gene DHN1 DREB1E ERF3 ERF91 GI HD3A LEA3-1 RAB16A RFT1 SALT
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
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Stages in Each Organ
- Muant Lines (Gene)
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Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase