- Information
- Symbol: OsOTS1
- MSU: LOC_Os06g29310
- RAPdb: Os06g0487900
- PSP score
- LOC_Os06g29310.1: 0.0279
- LOC_Os06g29310.2: 0.0227
- PLAAC score
- LOC_Os06g29310.1: 0
- LOC_Os06g29310.2: 0
- pLDDT score
- 68.8
- Protein Structure from AlphaFold and UniProt
- Publication
- SUMO is a critical regulator of salt stress responses in rice., 2016, Plant Physiol.
- Rice OVERLY TOLERANT TO SALT 1OTS1 SUMO protease is a positive regulator of seed germination and root development., 2016, Plant Signal Behav.
- Rice SUMO protease Overly Tolerant to Salt 1 targets the transcription factor, OsbZIP23 to promote drought tolerance in rice., 2017, Plant J.
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Genbank accession number
- Key message
- We demonstrate that OsOTS1 confers salt tolerance in rice by increasing root biomass
- High salinity triggers OsOTS1 degradation indicating that increased SUMO conjugation in rice plants during salt stress is in part achieved by down-regulation of OTS1/2 activity
- In this report, we reveal the Ubiquitin-like Protease (ULP) class of SUMO protease gene family in rice and demonstrate a critical role for OsOTS1 SUMO protease in salt stress
- Transgenic rice plants overexpressing OsOTS1 have increased salt tolerance and a concomitant reduction in the levels of SUMOylated proteins
- OsOTS1 is nuclear localised indicating a direct requirement of OsOTS1 dependent deSUMOylation activity in rice nuclei for salt tolerance
- Knockdown of OsOTS1 gene expression affects root growth by primarily reducing cell size rather than cell division
- We recently identified the SUMO protease gene family in rice and demonstrated a role for OsOTS1 SUMO proteases in salt stress
- We reveal that OsOTS1 SUMO protease directly targets the ABA and drought responsive transcription factor OsbZIP23 for de-SUMOylation affecting its stability
- In this study, we reveal the role of the SUMO protease, OsOTS1 in mediating tolerance to drought in rice
- OsOTS1 depleted transgenic plants accumulate more ABA and exhibit more productive agronomic traits during drought whilst OsOTS1 overexpressing lines are drought sensitive but ABA insensitive
- Drought and ABA treatment stimulates the degradation of OsOTS1 protein indicating that SUMO conjugation is an important response to drought stress in rice achieved through down-regulation of OTS1/2 activity
- OsOTS-RNAi lines show increased abundance of OsbZIP23 and increased drought responsive gene expression while OsOTS1 overexpressing lines show reduced levels of OsbZIP23 leading to suppressed drought responsive gene expression
- Connection
- OsbZIP23, OsOTS1, Rice SUMO protease Overly Tolerant to Salt 1 targets the transcription factor, OsbZIP23 to promote drought tolerance in rice., We reveal that OsOTS1 SUMO protease directly targets the ABA and drought responsive transcription factor OsbZIP23 for de-SUMOylation affecting its stability
- OsbZIP23, OsOTS1, Rice SUMO protease Overly Tolerant to Salt 1 targets the transcription factor, OsbZIP23 to promote drought tolerance in rice., OsOTS-RNAi lines show increased abundance of OsbZIP23 and increased drought responsive gene expression while OsOTS1 overexpressing lines show reduced levels of OsbZIP23 leading to suppressed drought responsive gene expression
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