- Information
- Symbol: OsCAO1,PGL
- MSU: LOC_Os10g41780
- RAPdb: Os10g0567400
- Publication
- Differential regulation of chlorophyll a oxygenase genes in rice, 2005, Plant Mol Biol.
- PGL, encoding chlorophyllide a oxygenase 1, impacts leaf senescence and indirectly affects grain yield and quality in rice., 2015, J Exp Bot.
- Transcriptomic and physiological analysis of OsCAO1 knockout lines using the CRISPR/Cas9 system in rice, 2020, Plant Cell Rep.
- Genbank accession number
- Key message
- This study characterizes a rice mutant, pale green leaf (pgl), and isolates the gene PGL by using a map-based cloning approach
- Compared with wild-type plants, pgl exhibits a lower Chl content with a reduced and disorderly thylakoid ultrastructure, which decreases the photosynthesis rate and results in reduced grain yield and quality
- Moreover, pgl is sensitive to heat stress
- In addition, pgl exhibits premature senescence in both natural and dark-induced conditions and more severe Chl degradation and reactive oxygen species accumulation than does the wild-type
- Thus, knockout of OsCAO1 influenced growth period, leaf development and grain quality characters of rice
- Overall, the result suggests that OsCAO1 also plays important roles in chlorophyll degradation and ROS scavenging to regulate both natural and induced rice senescence
- In this study, the development of edited lines with pale green leaves by knockout of OsCAO1 gene known as a chlorophyll synthesis process is reported
- Connection
- OsCAO1~PGL, OsCAO2, Differential regulation of chlorophyll a oxygenase genes in rice, We have identified two genes (OsCAO1 and OsCAO2) from the rice genome that are highly homologous to previously studied chlorophyll a oxygenase (CAO) genes
- OsCAO1~PGL, OsCAO2, Differential regulation of chlorophyll a oxygenase genes in rice, These results suggest that OsCAO1 plays a major role in chlorophyll b biosynthesis, and that OsCAO2 may function in the dark
- OsCAO1~PGL, OsPIL13~OsPIL1, Rice Phytochrome-Interacting Factor-Like1 OsPIL1 is involved in the promotion of chlorophyll biosynthesis through feed-forward regulatory loops., Using promoter binding and transactivation assays, we found that OsPIL1 binds to the promoters of two Chl biosynthetic genes, OsPORB and OsCAO1, and promotes their transcription
- OsCAO1~PGL, OsPIL13~OsPIL1, Rice Phytochrome-Interacting Factor-Like1 OsPIL1 is involved in the promotion of chlorophyll biosynthesis through feed-forward regulatory loops., Thus, OsPIL1 is involved in the promotion of Chl biosynthesis by up-regulating the transcription of OsPORB and OsCAO1 via trifurcate feed-forward regulatory loops involving two OsGLKs
Prev Next