- Information
- Symbol: COMT,OsCOMT,OsCAldOMT1
- MSU: LOC_Os08g06100
- RAPdb: Os08g0157500
- Publication
- OsCAD2 is the major CAD gene responsible for monolignol biosynthesis in rice culm, 2012, Plant Cell Rep.
- Flavonoid 3’-O-methyltransferase from rice: cDNA cloning, characterization and functional expression, 2006, Phytochemistry.
- Proteomic analysis of rice defense response induced by probenazole, 2008, Phytochemistry.
- Melatonin biosynthesis requires N-acetylserotonin methyltransferase activity of caffeic acid O-methyltransferase in rice., 2015, J Exp Bot.
- OsCAldOMT1 is a bifunctional O-methyltransferase involved in the biosynthesis of tricin-lignins in rice cell walls., 2019, Sci Rep.
- OsCOMT, encoding a caffeic acid O-methyltransferase in melatonin biosynthesis, increases rice grain yield through dual regulation of leaf senescence and vascular development., 2022, Plant Biotechnol J.
- Genbank accession number
- Key message
- We propose that PAL, COMT, and GSTU17 are likely to confer PBZ-induced disease resistance via such functions as biosynthesis and transport of flavonoid-type phytoalexin and/or lignin biogenesis
- Similar to AtCOMT, OsCOMT was localized in the cytoplasm
- Melatonin biosynthesis requires N-acetylserotonin methyltransferase activity of caffeic acid O-methyltransferase in rice
- OsCAldOMT1 is a bifunctional O-methyltransferase involved in the biosynthesis of tricin-lignins in rice cell walls.
- These data establish OsCAldOMT1 as a bifunctional O-methyltransferase predominantly involved in the two parallel metabolic pathways both dedicated to the biosynthesis of tricin-lignins in rice cell walls
- Transgenic assays suggested that OsCOMT significantly delays leaf senescence at the grain filling stage by inhibiting degradation of chlorophyll and chloroplast, which, in turn, improves photosynthesis efficiency
- In addition, the number and size of vascular bundles in the culms and leaves were significantly increased in the OsCOMT-overexpressing plants, while decreased in the knockout plants, suggesting that OsCOMT plays a positive role in vascular development of rice
- More importantly, we found that OsCOMT is a positive regulator of grain yield, and overexpression of OsCOMT increase grain yield per plant even in a high-yield variety background, suggesting that OsCOMT can be used as an important target for enhancing rice yield
- In vitro and in vivo evidence revealed that OsCOMT is involved in melatonin biosynthesis
- Connection
Prev Next