Gene Details:

• MSU gene ID: LOC_Os02g33450
• RAPdb gene ID: Os02g0537700
• Gene Symbol: BAS1 OsTPX OsPRX2
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Heterologous OsTPX expression increased the ability of the transgenic yeast cells to adapt and recover from reactive oxygen species (ROS)-induced oxidative stresses, such as a reduction of cellular hydroperoxide levels in the presence of hydrogen peroxide and menadione, by improving redox homeostasis.
• These results suggest that heterologous OsTPX expression increases acquired tolerance to ROS-induced oxidative stress by improving cellular redox homeostasis and improves fermentation capacity due to improved cell survival during fermentation, especially at a high temperature.
• Furthermore, high OsTPX expression improved the fermentation capacity of the yeast during glucose-based batch fermentation at a high temperature (40 degrees C) and at the general cultivation temperature (30 degrees C).
• In this study, a putative chloroplastic 2-Cys thioredoxin peroxidase (OsTPX) was identified by proteome analysis from leaf tissue samples of rice (Oryza sativa) seedlings exposed to 0.
• The alcohol yield in OsTPX-expressing transgenic yeast increased by approximately 29 % (0.
• We found that OsPRX2 was localized in the chloroplast.
• OsPRX2 contributes to stomatal closure and improves potassium deficiency tolerance in rice.
• In this study, a rice homologue gene of At2-CysPrxB, OsPRX2 was investigated aiming to characterize the effect of 2-Cys Prxs on the K(+)-deficiency tolerance in rice.
• Overexpressed OsPRX2 causes the stomatal closing and K(+)-deficiency tolerance increasing, while knockout of OsPRX2 lead to serious defects in leaves phenotype and the stomatal opening under the K(+)-deficiency tolerance.
• Detection of K(+) accumulation, antioxidant activity of transgenic plants under the starvation of potassium, further confirmed that OsPRX2 is a potential target for engineering plants with improved potassium deficiency tolerance.

Function-related keywords:

• oxidative ,  temperature ,  seedling ,  yield ,  homeostasis ,  leaf ,  chloroplast ,  tolerance ,  potassium ,  stomatal

Literature:

• Expression of salt-induced 2-Cys peroxiredoxin from Oryza sativa increases stress tolerance and fermentation capacity in genetically engineered yeast Saccharomyces cerevisiae .  DOI:  10.1007/s00253-012-4410-8 ;  PMID:  23053072
• A highly efficient rice green tissue protoplast system for transient gene expression and studying light/chloroplast-related processes .  DOI:  10.1186/1746-4811-7-30 ;  PMID:  21961694
• OsPRX2 contributes to stomatal closure and improves potassium deficiency tolerance in rice .  DOI:  10.1016/j.bbrc.2017.11.045 ;  PMID:  29128357

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: