Gene Details:

• MSU gene ID: LOC_Os03g01870
• RAPdb gene ID: Os03g0109000
• Gene Symbol: OsNAC055
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Transcription factor OsNAC055 regulates GA-mediated lignin biosynthesis in rice straw.
• In this study, we identified a rice NAC (NAM, ATAF1/2, CUC2) transcription factor OsNAC055 that regulates GA-mediated lignin biosynthesis.
• As a nucleus-localized transcription factor, OsNAC055 exhibits the transcriptional activation activity.
• Together, our results provide the evidence that OsNAC055 functions as an essential transcription factor to regulate the GA-mediated lignin biosynthesis, which provides a strategy for manipulating lignin production.
• On the other hand, phytohormone measurement showed that OsNAC055 overexpression significantly increased exogenous GA3 levels in rice plants by regulating GA biosynthetic gene OsGA20ox2.
• Moreover, yeast two-hybrid and bimolecular fluorescence complement (BiFC) assays indicated that OsNAC055 interacts with SLENDER RICE1 (SLR1), the repressor in GA signaling.
• Overexpression of OsNAC055 increases the lignin content in rice straw.
• Further ChIP-qPCR analysis and transient transactivation assays indicated that OsNAC055 directly activates rice lignin biosynthetic genes CINNAMOYL-CoA REDUCTASE 10 (OsCCR10) and CINNAMYL ALCOHOL DEHYDROGENASE 2 (OsCAD2) by binding to their promoters.

Function-related keywords:

• transcription-factor ,  ga ,  GA ,  lignin ,  phytohormone ,  GA-biosynthetic ,  lignin-biosynthesis ,  dehydrogenase

Literature:

• Transcription factor OsNAC055 regulates GA-mediated lignin biosynthesis in rice straw .  DOI:  10.1016/j.plantsci.2022.111455 ;  PMID:  36152809

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: