Gene Details:

• MSU gene ID: LOC_Os01g32660
• RAPdb gene ID: Os01g0510100
• Gene Symbol: OsMEK1 OsMKK6
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Subtractive screening of cDNA that accumulated in 12 degrees C-treated anthers identified a cDNA clone, OsMEK1, encoding a protein with features characteristic of a mitogen-activated protein (MAP) kinase kinase.
• OsMEK1 transcript levels were induced in rice anthers by 12 degrees C treatment for 48 h.
• Taken together, these results lead us to conclude that at least two signaling pathways for low temperature stress exist in rice, and that a MAP kinase pathway with OsMEK1 and OsMAP1 components is possibly involved in the signaling for the higher range low-temperature stress.
• Two novel mitogen-activated protein signaling components, OsMEK1 and OsMAP1, are involved in a moderate low-temperature signaling pathway in rice.
• Taken together, our data suggest that OsMKK6 and OsMPK3 constitute a moderately low-temperature signalling pathway and regulate cold stress tolerance in rice.
• In the present study, a MKK from rice (Oryza sativa), OsMKK6 was functionally characterized in salt stress by transforming its constitutively active form.
• CONCLUSION: Present work suggest role of OsMKK6 gene in salt stress signaling in rice.
• Similar OsMEK1 induction was observed in shoots and roots of seedlings that were treated at 12 degrees C for up to 24 h.
• It is interesting that no induction of OsMEK1 transcripts was observed in 4 degrees C-treated seedlings.
• Enhanced chilling tolerance was observed in the transgenic plants overexpressing OsMKK6DD.
• Biochemical identification of the OsMKK6-OsMPK3 signalling pathway for chilling stress tolerance in rice.

Function-related keywords:

• anther ,  temperature ,  salt ,  seedling ,  chilling ,  cold-stress ,  root ,  salt-stress ,  shoot

Literature:

• Overexpression of constitutively active mitogen activated protein kinase kinase 6 enhances tolerance to salt stress in rice .  DOI:  10.1186/1939-8433-6-25 ;  PMID:  24280045
• Biochemical identification of the OsMKK6-OsMPK3 signalling pathway for chilling stress tolerance in rice .  DOI:  10.1042/BJ20111792 ;  PMID:  22248149
• Two novel mitogen-activated protein signaling components, OsMEK1 and OsMAP1, are involved in a moderate low-temperature signaling pathway in rice .  DOI:  10.1104/pp.006072 ;  PMID:  12177502

Related News:

Gene Resources:

• NCBI ID: DQ779790  , AK059461
• UniProt accessions:

Sequences: