- Information
- Symbol: OsHXK1
- MSU: LOC_Os07g26540
- RAPdb: Os07g0446800
- Publication
- OsAGO2 controls ROS production and the initiation of tapetal PCD by epigenetically regulating OsHXK1 expression in rice anthers., 2019, Proc Natl Acad Sci U S A.
- Improving the Rice Photosynthetic Efficiency and Yield by Editing OsHXK1 via CRISPR/Cas9 System, 2021, Int J Mol Sci.
- Hexokinase gene OsHXK1 positively regulates leaf senescence in rice., 2021, BMC Plant Biol.
- An OsPRMT5-OsAGO2/miR1875-OsHXK1 module regulates rice immunity to blast disease., 2022, J Integr Plant Biol.
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Genbank accession number
- Key message
- Overexpression of OsHXK1 also resulted in the overaccumulation of ROS, premature initiation of PCD, and pollen abortion
- Moreover, knockdown of OsHXK1 restored pollen fertility in OsAGO2 knockdown plants
- OsAGO2 controls ROS production and the initiation of tapetal PCD by epigenetically regulating OsHXK1 expression in rice anthers.
- These results indicate that OsHXK1 controls the appropriate production of ROS and the proper timing of tapetal PCD and is directly regulated by OsAGO2 through epigenetic regulation
- They also revealed the important roles of OsHXK1 in the regulation of rice yield and photosynthesis
- Improving the Rice Photosynthetic Efficiency and Yield by Editing OsHXK1 via CRISPR/Cas9 System
- Hexokinase gene OsHXK1 positively regulates leaf senescence in rice.
- CONCLUSIONS: Overall, the outcomes of this study suggested that OsHXK1 could act as a positive regulator of rice leaf senescence by mediating glucose accumulation and inducing an increase in ROS
- The upregulation of OsHXK1 led to premature senescence of rice leaves, a decreased level of chlorophyll, and damage to the chloroplast structure
- The overexpression of OsHXK1 resulted in increases in glucose and ROS levels and produced programmed cell death (PCD) signals earlier at the booting stage
- OsHXK1 acts as a positive regulator of blast disease resistance that OsHXK1-OE rice exhibited enhanced resistance, whereas Cas9-Oshxk1 rice showed reduced resistance, against M
- OsHXK1 may function through its sugar sensor activity since glucose induced defense-related gene expression and ROS accumulation in Nipponbare and OsHXK1-OE but not in Cas9-Oshxk1 rice
- Connection
- miR1875, OsHXK1, An OsPRMT5-OsAGO2/miR1875-OsHXK1 module regulates rice immunity to blast disease., OsAGO2 associates with the 24-nt miR1875 and binds to the promoter region of HEXOKINASE1 (OsHXK1), which causes DNA methylation and leads to gene silencing
- OsAGO2, OsHXK1, An OsPRMT5-OsAGO2/miR1875-OsHXK1 module regulates rice immunity to blast disease., OsAGO2 associates with the 24-nt miR1875 and binds to the promoter region of HEXOKINASE1 (OsHXK1), which causes DNA methylation and leads to gene silencing
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