OsPK1

2015-01-20 | Categories genes  | Tags root  growth  leaf  culm  dwarf  panicle  seed  stem  mitochondria  ABA  abscisic acid  signal transduction  ABA 

• Information
  • Symbol: OsPK1
  • MSU: LOC_Os11g05110
  • RAPdb: Os11g0148500
• Publication
  • Downregulation of OsPK1, a cytosolic pyruvate kinase, by T-DNA insertion causes dwarfism and panicle enclosure in rice, 2012, Planta.
  • Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , 2020, Plant Physiol.
  • Gene Expression Dynamics in Rice Peduncles at the Heading Stage, 2020, Front Genet.
  • SiMYB19 from Foxtail Millet Setaria italica Confers Transgenic Rice Tolerance to High Salt Stress in the Field., 2022, Int J Mol Sci.
• Genbank accession number
  • AK099650
• Key message
  • 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
• Connection
  • OsPK1, OsPK3, Mitochondria-associated pyruvate kinase complexes regulate grain filling in rice., Subcellular localization analysis of OsPK3 revealed its association with mitochondria, and OsPK3 physically interacted and formed heterodimers in vivo with two other PK isozymes, OsPK1 and OsPK4
  • OsPK1, OsPK3, Mitochondria-associated pyruvate kinase complexes regulate grain filling in rice., Both OsPK1 and OsPK4 localized to the mitochondria and cytosol and were recruited to the mitochondria by OsPK3
  • OsPK1, OsPK3, Mitochondria-associated pyruvate kinase complexes regulate grain filling in rice., As observed for ospk3, disruption of OsPK1 caused pleiotropic defects, while OsPK4 loss of function led to severely chalky grains without other obvious defects
  • OsPK1, OsPK3, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , Subcellular localization analysis of OsPK3 revealed its association with mitochondria, and OsPK3 physically interacted and formed heterodimers in vivo with two other PK isozymes, OsPK1 and OsPK4
  • OsPK1, OsPK3, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , Both OsPK1 and OsPK4 localized to the mitochondria and cytosol and were recruited to the mitochondria by OsPK3
  • OsPK1, OsPK3, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , As observed for ospk3, disruption of OsPK1 caused pleiotropic defects, while OsPK4 loss of function led to severely chalky grains without other obvious defects
  • OsPK1, PK4~OsPK4~OsCIPK19, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , Subcellular localization analysis of OsPK3 revealed its association with mitochondria, and OsPK3 physically interacted and formed heterodimers in vivo with two other PK isozymes, OsPK1 and OsPK4
  • OsPK1, PK4~OsPK4~OsCIPK19, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , Both OsPK1 and OsPK4 localized to the mitochondria and cytosol and were recruited to the mitochondria by OsPK3
  • OsPK1, PK4~OsPK4~OsCIPK19, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , Despite their high sequence similarity, OsPK1 and OsPK4 had distinct expression patterns
  • OsPK1, PK4~OsPK4~OsCIPK19, Mitochondria-Associated Pyruvate Kinase Complexes Regulate Grain Filling in Rice , As observed for ospk3, disruption of OsPK1 caused pleiotropic defects, while OsPK4 loss of function led to severely chalky grains without other obvious defects
  • OsNCED3, OsPK1, SiMYB19 from Foxtail Millet Setaria italica Confers Transgenic Rice Tolerance to High Salt Stress in the Field., 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
  • OsAREB8~OsAREB1~OsbZIP46~OsABF2~ABL1, OsPK1, SiMYB19 from Foxtail Millet Setaria italica Confers Transgenic Rice Tolerance to High Salt Stress in the Field., 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

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