Gene Details:

• MSU gene ID: LOC_Os03g16030
• RAPdb gene ID: Os03g0267000
• Gene Symbol: OsHsp18.0-CI Oshsp18.0 OsMSR3
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• A Class II small heat shock protein Oshsp18.0 plays positive roles in both biotic and abiotic defense responses in rice.
• However, the role of OsMSR3 in the Cu stress response of plants remains unclear, and, thus, this study aimed to elucidate this phenomenon in Arabidopsis thaliana, to further understand the role of small HSPs (sHSPs) in heavy metal resistance in plants.
• Collectively, our findings suggest that OsMSR3 played an important role in regulating Cu tolerance in plants and improved their tolerance to Cu stress through enhanced activation of antioxidative defense mechanisms and positive regulation of ABA-responsive gene expression.
• A previous study has shown that OsMSR3 expression improves the tolerance of Arabidopsis to cadmium stress.
• thaliana expressing OsMSR3 showed higher tolerance to Cu, longer roots, higher survival rates, biomass, and relative water content, and accumulated more Cu, abscisic acid (ABA), hydrogen peroxide, chlorophyll, carotenoid, superoxide dismutase, and peroxidase than wild-type plants did.

Function-related keywords:

• defense ,  defense-response ,  resistance ,  tolerance ,  stress ,  abscisic-acid ,  cadmium ,  stress-response

Literature:

• Cloning and characterization of a cDNA encoding an 18.0-kDa class-I low-molecular-weight heat-shock protein from rice .  DOI:  10.1016/0378-1119(95)00562-k ;  PMID:  8522180
• A Class II small heat shock protein OsHsp18.0 plays positive roles in both biotic and abiotic defense responses in rice .  DOI:  10.1038/s41598-017-11882-x ;  PMID:  28900229
• OsMSR3, a Small Heat Shock Protein, Confers Enhanced Tolerance to Copper Stress in Arabidopsis thaliana .  DOI:  10.3390/ijms20236096 ;  PMID:  31816902

Related News:

Gene Resources:

• NCBI ID: X75616
• UniProt accessions:

Sequences: