Gene Details:

• MSU gene ID: LOC_Os07g35870
• RAPdb gene ID: Os07g0543000
• Gene Symbol: OsbHLH057
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Using a DNA pull-down assay coupled with mass spectrometry, a basic helix-loop-helix (bHLH) transcription factor OsbHLH057 was determined to interact with the AATCA cis-element.
• OsbHLH057 targets the AATCA cis-element to regulate disease resistance and drought tolerance in rice.
• OsbHLH057 bound to the motif to positively regulate rice disease resistance and drought tolerance.
• Furthermore, overexpressing OsbHLH057 enhanced rice disease resistance and drought tolerance, while knocking out OsbHLH057 made rice more susceptible to pathogens and drought.
• bHLH57 confers chilling tolerance and grain yield improvement in rice.
• OsbHLH057 was highly expressed in the leaf blades and lowly expressed in the roots; it was mainly expressed in the stele and highly expressed in the lateral roots.
• The bHLH Transcription Factor OsbHLH057 Regulates Iron Homeostasis in Rice.
• Under Fe-sufficient conditions, OsbHLH057 knockout or overexpression lines increased or decreased the shoot Fe concentration and the expression of several Fe homeostasis-related genes, respectively.
• Under Fe-deficient conditions, plants with an OsbHLH057 mutation showed susceptibility to Fe deficiency and accumulated lower Fe concentrations in the shoot compared with the wild type.
• OsbHLH057 localised in the nucleus exhibited transcriptional activation activity.
• Here, we report that OsbHLH057 is involved in regulating Fe homeostasis in rice.
• In addition, OsbHLH057 was slightly induced by Fe deficiency in the shoots on the first day but was not affected by Fe availability in the roots.
• These results indicate that OsbHLH057 plays a positive role in regulating Fe homeostasis, at least under Fe-sufficient conditions.

Function-related keywords:

• transcription-factor ,  resistance ,  disease ,  disease-resistance ,  drought ,  tolerance ,  drought-tolerance ,  chilling-tolerance ,  grain-yield ,  leaf ,  shoot ,  nucleus ,  homeostasis ,  lateral-root ,  iron ,  Fe ,  iron-homeostasis ,  Fe-homeostasis

Literature:

• OsbHLH057 targets the AATCA cis-element to regulate disease resistance and drought tolerance in rice .  DOI:  10.1007/s00299-022-02859-w ;  PMID:  35278106
• bHLH57 confers chilling tolerance and grain yield improvement in rice .  DOI:  10.1111/pce.14513 ;  PMID:  36510797
• The bHLH Transcription Factor OsbHLH057 Regulates Iron Homeostasis in Rice .  DOI:  10.3390/ijms232314869 ;  PMID:  36499202

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: