Information report for OsRacB
Gene Details
|
|
Functional Descriptions
- 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.
- The knockout mutants were normal in anther and pollen development but defective in the pollen grain germination, suggesting a specific and non-redundant role of OsRacB in the mature pollen.
- A small Rho GTPase OsRacB is required for pollen germination in rice.
- We further demonstrated that OsRacB is directly activated by the pollen specific expressing OsRopGEFs in vitro.
Functional Keywords
- root , stem , blast , salt , salinity , jasmonic , jasmonic-acid , salt-tolerance , salicylic-acid , disease , disease-resistance , seedling , development , pollen , grain , anther , pollen-development
Literature and News
- Functional characterization of OsRacB GTPase–a potentially negative regulator of basal disease resistance in rice . DOI: 10.1016/j.plaphy.2005.12.001 ; PMID: 16531052
- Rice GTPase OsRacB: potential accessory factor in plant salt-stress signaling . DOI: 10.1111/j.1745-7270.2006.00172.x ; PMID: 16761097
- A small Rho GTPase OsRacB is required for pollen germination in rice . DOI: 10.1111/dgd.12752 ; PMID: 34519039
Gene Resources
- UniProt: Q6ZHA3
- EMBL: AF250327, AK069443, AK100842
- AlphaFoldDB: Q6ZHA3
- EnsemblPlants: Os02t0120800-01, Os02t0120800-02
- Gramene: Os02t0120800-01, Os02t0120800-02
- KEGG: dosa:Os02g0120800
- Orthologous matrix: WAPEITH
- InterPro: IPR001806, IPR003578, IPR005225
Sequences
cDNA Sequence
- >LOC_Os02g02840.1
GGCCACCTCCTCCACCCACCTCACCCACCACCTCTCTCTCTACTCCTCCTCTTCTCCTCCTCCGTCTCGAGCGAGCTCTCTCCTTCCTTGTCTCGGGTCTCGGCATTGCATTTGCATTGGGGGGCATTGCTATTGCTTCGCTTGCGCTTGGCCACCCACCATTTCGGCGCGGAGAGGAGACCGCTTCACCCGCCGATCTGCGAGAAACCCTCTCCGCCTCGCCTCCTCCACCTCCCAATCTTAACCCAACCTCCCCCCTTCCTCTCGCGTCGACCCCTTGCTTTGCTCCTCCTTCAACCTTCTTCTTTCTTGGAGTTTCTTGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGAGGGGGGAGCGGTCGCAGGAGGAGGAGGACGGCGGCGTCTGCTGCGACCGACGGGGAGCGGCGAGGATGAGCGCGTCCAGGTTCATAAAGTGCGTCACCGTCGGGGACGGCGCCGTCGGCAAGACCTGCATGCTCATCTCCTACACCTCCAACACCTTCCCCACTGATTATGTTCCGACGGTGTTTGACAACTTCAGTGCCAACGTCGTGGTTGATGGTAACACCGTCAACCTCGGGCTATGGGACACTGCAGGTCAGGAGGATTACAACAGACTGAGACCACTGAGTTATCGTGGAGCTGATGTTTTCCTTCTGGCCTTCTCGCTAATCAGCAAGGCCAGCTATGAGAATGTTTCAAAGAAGTGGATACCTGAGCTGAAGCATTATGCACCTGGTGTGCCTATCATCCTTGTGGGAACAAAGCTTGATCTTCGAGATGACAAGCAGTTTTTTGTGGACCATCCTGGTGCTGTTCCTATCACCACTGCTCAGGGAGAGGAACTAAGAAAGCAAATAGGCGCCCCATACTACATCGAATGCAGCTCAAAGACCCAACTAAACGTCAAGGGCGTTTTCGATGCGGCAATAAAGGTGGTGCTGCAGCCACCCAAGGCGAAGAAGAAGAAAAAGGCGCAAAGGGGGGCGTGCTCCATTTTGTGATCTAATCATCAGTAGACGACGAAGAAGAAGAACGATGAAGTTGCCAGGCTTTATTATTGTTGCGTCTTGCTTCAGCGAAACAGCATTCATGGTCCGGGGATCCTAGTTTACTGGCAGCTGCAGCAAGGCCTCTTTGTCGAGGCAATGAGCGATCCGTTTGTTTCATTTTCTCCTTTCTGCCTTGTGATTATCTCGTGTGACTGACAAGTCGTGGCAATTAGGTAACTTTCCTAGATGGTATTTCCTGTGTTTGAGAAAAAAAATTCTTGTTATCCCTGTTTCATAAGTAGACATGATGTAATCGCACTCAGTTTATTCTTTTCCTTCTTATTTCACTTCAATGGAAAATTATGTTTCCCCTTCATATTCTGTTCTGCAAATGGAGCAAGATCTGTGATGTTCTTCTGACT
CDS Sequence
- >LOC_Os02g02840.1
ATGAGCGCGTCCAGGTTCATAAAGTGCGTCACCGTCGGGGACGGCGCCGTCGGCAAGACCTGCATGCTCATCTCCTACACCTCCAACACCTTCCCCACTGATTATGTTCCGACGGTGTTTGACAACTTCAGTGCCAACGTCGTGGTTGATGGTAACACCGTCAACCTCGGGCTATGGGACACTGCAGGTCAGGAGGATTACAACAGACTGAGACCACTGAGTTATCGTGGAGCTGATGTTTTCCTTCTGGCCTTCTCGCTAATCAGCAAGGCCAGCTATGAGAATGTTTCAAAGAAGTGGATACCTGAGCTGAAGCATTATGCACCTGGTGTGCCTATCATCCTTGTGGGAACAAAGCTTGATCTTCGAGATGACAAGCAGTTTTTTGTGGACCATCCTGGTGCTGTTCCTATCACCACTGCTCAGGGAGAGGAACTAAGAAAGCAAATAGGCGCCCCATACTACATCGAATGCAGCTCAAAGACCCAACTAAACGTCAAGGGCGTTTTCGATGCGGCAATAAAGGTGGTGCTGCAGCCACCCAAGGCGAAGAAGAAGAAAAAGGCGCAAAGGGGGGCGTGCTCCATTTTGTGA
Protein Sequence
- >LOC_Os02g02840.1
MSASRFIKCVTVGDGAVGKTCMLISYTSNTFPTDYVPTVFDNFSANVVVDGNTVNLGLWDTAGQEDYNRLRPLSYRGADVFLLAFSLISKASYENVSKKWIPELKHYAPGVPIILVGTKLDLRDDKQFFVDHPGAVPITTAQGEELRKQIGAPYYIECSSKTQLNVKGVFDAAIKVVLQPPKAKKKKKAQRGACSIL*