Gene Details:

• MSU gene ID: LOC_Os11g05110
• RAPdb gene ID: Os11g0148500
• Gene Symbol: OsPK1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Quantitative RT-PCR and GUS staining analyses exhibited that OsPK1 was expressed mainly in leaf mesophyll cells, phloem companion cells in stems, and cortical parenchyma cells in roots.
• Here, we identified a novel rice dwarf mutant, designated as OsPK1, showing dwarfism, panicle enclosure, reduced seed set, and outgrowth of axillary buds from culm nodes.
• The contents of glucose and fructose were markedly accumulated in flag leaf blade and panicle of OsPK1.
• Downregulation of OsPK1, a cytosolic pyruvate kinase, by T-DNA insertion causes dwarfism and panicle enclosure in rice.
• The sucrose level in panicle of OsPK1 was decreased by approximately 84%.
• Both OsPK1 and OsPK4 localized to the mitochondria and cytosol and were recruited to the mitochondria by OsPK3.
• SiMYB19 overexpression promotes abscisic acid (ABA) accumulation in transgenic rice and upregulates the ABA synthesis gene OsNCED3 and the ABA signal transduction pathway-related genes OsPK1 and OsABF2.

Function-related keywords:

• root ,  growth ,  leaf ,  culm ,  dwarf ,  panicle ,  seed ,  stem ,  mitochondria ,  ABA ,  abscisic-acid ,  signal-transduction

Literature:

• Downregulation of OsPK1, a cytosolic pyruvate kinase, by T-DNA insertion causes dwarfism and panicle enclosure in rice .  DOI:  10.1007/s00425-011-1471-3 ;  PMID:  21805151
• Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice .  DOI:  10.1104/pp.20.00279 ;  PMID:  32376763
• Gene Expression Dynamics in Rice Peduncles at the Heading Stage .  DOI:  10.3389/fgene.2020.584678 ;  PMID:  33343630
• SiMYB19 from Foxtail Millet (Setaria italica) Confers Transgenic Rice Tolerance to High Salt Stress in the Field .  DOI:  10.3390/ijms23020756 ;  PMID:  35054940

Related News:

Gene Resources:

• NCBI ID: AK099650
• UniProt accessions:

Sequences: