- Information
- Symbol: OsSIG1
- MSU: LOC_Os08g06630
- RAPdb: Os08g0163400
- Publication
- Differential Expression of Three Plastidial Sigma Factors,OsSIG1,OsSIG2A, andOsSIG2B, during Leaf Development in Rice, 2014, Bioscience, Biotechnology and Biochemistry.
- The plastid sigma factor SIG1 maintains photosystem I activity via regulated expression of the psaA operon in rice chloroplasts, 2007, Plant J.
- Genbank accession number
- Key message
- We previously showed that transcripts of OsSIG1, which encodes one such sigma factor in rice, accumulate relatively late during leaf development
- Quantitative RT-PCR and northern blot analyses of chloroplast gene expression revealed that the abundance of transcripts derived from the psaA operon was markedly reduced in OsSIG1-/- plants compared with that in wild-type homozygotes
- Our results thus indicate that OsSIG1 plays an important role in the maintenance of photosynthetic activity in mature chloroplasts of rice by regulating expression of chloroplast genes for components of photosystem I
- Gene expression analysis revealed that the OsSIG2A transcript is more abundant than the OsSIG2B transcript in all tissues tested and that both rice SIG2s are expressed from earlier stages of leaf development than that in the case of OsSIG1
- Differential Expression of Three Plastidial Sigma Factors,OsSIG1,OsSIG2A, andOsSIG2B, during Leaf Development in Rice
- Connection
- OsSIG1, OsSIG2A, Differential Expression of Three Plastidial Sigma Factors,OsSIG1,OsSIG2A, andOsSIG2B, during Leaf Development in Rice, Gene expression analysis revealed that the OsSIG2A transcript is more abundant than the OsSIG2B transcript in all tissues tested and that both rice SIG2s are expressed from earlier stages of leaf development than that in the case of OsSIG1
- OsSIG1, OsSIG2A, Differential Expression of Three Plastidial Sigma Factors,OsSIG1,OsSIG2A, andOsSIG2B, during Leaf Development in Rice, Differential Expression of Three Plastidial Sigma Factors,OsSIG1,OsSIG2A, andOsSIG2B, during Leaf Development in Rice
- DUA1, OsSIG1, A pentatricopeptide repeat protein DUA1 interacts with sigma factor 1 to regulate chloroplast gene expression in Rice, Furthermore, we demonstrated that sigma factor OsSIG1 interacted with DUA1 in vitro and in vivo
- DUA1, OsSIG1, A pentatricopeptide repeat protein DUA1 interacts with sigma factor 1 to regulate chloroplast gene expression in Rice, Our study reveals that the PPR protein DUA1 plays an important role in regulating PEP-mediated chloroplast gene expression through interacting with OsSIG1, thus modulates chloroplast development in response to environmental signals
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