- Information
- Symbol: OsRacB
- MSU: LOC_Os02g02840
- RAPdb: Os02g0120800
- PSP score
- LOC_Os02g02840.1: 0.0137
- PLAAC score
- LOC_Os02g02840.1: 0
- pLDDT score
- 91.19
- Protein Structure from AlphaFold and UniProt
- Publication
- Functional characterization of OsRacB GTPase–a potentially negative regulator of basal disease resistance in rice, 2006, Plant Physiol Biochem.
- Rice GTPase OsRacB: Potential Accessory Factor in Plant Salt-stress Signaling, 2006, Acta Biochimica et Biophysica Sinica.
- Genbank accession number
- Key message
- Results show that OsRacB transcription is highly accumulated in roots after treatment with salinity, but only slightly accumulated in stems and leaves under the same treatment
- A dramatic down-regulation in the OsRacB transcripts was also found in plants inoculated with the blast pathogen, Magnaporthe grisea
- Interestingly, transgenic rice plants over-expressing OsRacB showed increased symptom development in response to rice blast pathogens
- In this study, we focus on the relationship between the novel rice Rop gene OsRacB and plant salt tolerance
- This suggests that overexpression of OsRacB in tobacco and rice can improve plant salt tolerance
- The results indicated that OsRacB is only an accessory factor in plant salt tolerance
- Rice GTPase OsRacB: Potential Accessory Factor in Plant Salt-stress Signaling
- Promoter analysis showed that OsRacB promoter is induced by salinity and exogenous salicylic acid, not abscisic acid
- The basal mRNA level of OsRacB in LS of two-week-old seedlings was strongly down-regulated upon wounding by cut and treatment with jasmonic acid
- To our interest in finding a negative ROP regulator of disease resistance in rice, we applied a phylogeny of function approach to rice Rops, and identified OsRacB based on its close genetic orthologous relationship with the barley HvRacB gene, a known negative regulator of disease resistance
- Based on these results, we suggest that OsRacB functions as a potential regulator for a basal disease resistance pathway in rice
- Functional characterization of OsRacB GTPase–a potentially negative regulator of basal disease resistance in rice
- Connection
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