- Information
- Symbol: OsASN1,OsAS1
- MSU: LOC_Os03g18130
- RAPdb: Os03g0291500
- Publication
- Biological functions of asparagine synthetase in plants, 2010, Plant Science.
- Asparagine synthetase1, but not asparagine synthetase2, is responsible for the biosynthesis of asparagine following the supply of ammonium to rice roots., 2015, Plant Cell Physiol.
- OsASN1 Plays a Critical Role in Asparagine-Dependent Rice Development., 2018, Int J Mol Sci.
- OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions , 2020, Plant Cell Physiol.
- OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions, 2020, Plant Cell Physiol.
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Genbank accession number
- Key message
- OsAS1 was mainly expressed in the roots with in situ hybridization showing that the corresponding mRNA was specifically accumulated in the three cell layers of root surface (epidermis, exodermis, and sclerenchyma) in an NH4 (+)-dependent manner
- These results suggest that OsASN1 is involved in the regulation of rice development and is specific for tiller outgrowth
- In addition, we show that overexpression (OX) of OsASN1 results in better nitrogen uptake and assimilation, and increased tolerance to N limitation at the seedling stage
- Thus, OsASN1 can be an effective target gene for the development of rice cultivars with higher grain protein content, NUE, and grain yield under N-limiting conditions
- OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions
- Under field conditions, the OsASN1 OX rice plants produced grains with increased N and protein contents without yield reduction compared to wild-type (WT) rice
- Connection
- OsARF18~RST1, OsASN1~OsAS1, Transcriptional repressor RST1 controls salt tolerance and grain yield in rice by regulating gene expression of asparagine synthetase., Molecular analyses showed that RST1 directly repressed the expression of the gene encoding asparagine synthetase 1 (OsAS1)
- OsARF18~RST1, OsASN1~OsAS1, Transcriptional repressor RST1 controls salt tolerance and grain yield in rice by regulating gene expression of asparagine synthetase., Loss of RST1 function increased the expression of OsAS1 and improved nitrogen (N) utilization by promoting asparagine production and avoiding excess ammonium (NH(4)(+)) accumulation
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