- Information
- Symbol: OsUCL8
- MSU: LOC_Os03g50140
- RAPdb: Os03g0709100
- Publication
-
Genbank accession number
- Key message
- The knock down or knock out of OsUCL8 also increases grain yield, while the overexpression of OsUCL8 results in an opposite phenotype
- Further studies revealed that the cleavage of OsUCL8 by miR408 affects copper homeostasis in the plant cell, which in turn affects the abundance of plastocyanin proteins and photosynthesis in rice
- Spatial and temporal expression analyses showed that OsUCL8 was highly expressed in pistils, young panicles, developing seeds and inflorescence meristem, and was nearly complementary to that of OsmiR408
- Interestingly, the OsUCL8 protein was localized to the cytoplasm, distinctive from a majority of phytocyanins which localize to the plasma membrane
- The overexpression of OsUCL8 led to a striking irregularity in pollen tube growth and pollination and thus affected the seed setting rate in rice; many pollen tubes appeared to lose the ability to grow directly into the style
- The rice plantacyanin family member OsUCL8 plays an important role in pollen tube formation and growth and, in turn, regulates fertility and the seed setting rate
- We further demonstrated that OsUCL8 mainly affects pollen intine formation
- The addition of Vitamin B1 (VB1) significantly contributed to the germination of OXUCL8 pollen grains, suggesting that OsUCL8 could be associated with VB1 production
- Connection
- miR408~OsMIR408~OsmiR408, OsUCL8, MiR408 Regulates Grain Yield and Photosynthesis via a Phytocyanin Protein., Further studies revealed that the cleavage of OsUCL8 by miR408 affects copper homeostasis in the plant cell, which, in turn, affects the abundance of plastocyanin proteins and photosynthesis in rice
- OsPKIWI~PKIWI502, OsUCL8, Rice UCL8, a plantacyanin gene targeted by miR408, regulates fertility by controlling pollen tube germination and growth., Using a yeast two-hybrid system, we revealed that OsUCL8 interacts with the protein OsPKIWI, a homolog of the Arabidopsis FNRL protein
- OsPKIWI~PKIWI502, OsUCL8, Rice UCL8, a plantacyanin gene targeted by miR408, regulates fertility by controlling pollen tube germination and growth., We thus hypothesized that OsUCL8 might regulate the production of VB components by interacting with OsPKIWI
Prev Next