Gene Details:

• MSU gene ID: LOC_Os03g20380
• RAPdb gene ID: Os03g0319400
• Gene Symbol: OsCK1 OsCIPK31 CIPK03
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• To determine the physiological roles of OsCIPK31 in rice plants, the sensitivity of OsCIPK31::Ds, which is a transposon Ds insertion mutant, to abiotic stresses was examined during germination and seedling stages.
• In addition, OsCIPK31::Ds seedlings exhibited enhanced expression of several stress-responsive genes after exposure to these abiotic stresses.
• This study demonstrated that rice plants use OsCIPK31 to modulate responses to abiotic stresses during the seed germination and seedling stages and to modulate the expression of stress-responsive genes.
• OsCIPK31, a CBL-interacting protein kinase is involved in germination and seedling growth under abiotic stress conditions in rice plants.
• Transgenic plants overexpressing the transgenes OsCIPK03, OsCIPK12, and OsCIPK15 showed significantly improved tolerance to cold, drought, and salt stress, respectively.
• Sequence analysis indicated that the open reading frame of the OsCK1 gene consists of 1350 bp encoding 449 amino acid residues, which is very similar to a family of calcineurin B-like protein (CBL)-interacting protein kinases (CIPKs) or salt overly sensitive 2 (SOS2)-like protein kinases (PKS) in Arabidopsis.
• Expression of the OsCK1 gene was detected mainly in the shoots and highly inducible by diverse signals such as cold, light, salt, sugar and cytokinins.
• Under cold and drought stresses, OsCIPK03- and OsCIPK12-overexpressing transgenic plants accumulated significantly higher contents of proline and soluble sugars than the wild type.
• OsCIPK31::Ds mutants exhibited hypersensitive phenotypes to ABA, salt, mannitol, and glucose.
• However, the expression of ABA metabolic genes and the endogenous levels of ABA were not altered significantly in the OsCIPK31::Ds mutant.
• Our results support that OsCIPK31 plays an important role in panicle development.
• We found that dysregulation is caused by the disruption of OsCIPK31 function due to excessive accumulation of ROS, which ultimately leads to cell death in rice panicle.
• Our study provides an understanding of the role of OsCIPK31 in panicle development by responding to various stresses and phytohormones.

Function-related keywords:

• seed ,  salt-stress ,  salt ,  drought ,  cytokinin ,  shoot ,  growth ,  seedling ,  seed-germination ,  ABA ,  abiotic-stress ,  panicle ,  development ,  cell-death

Literature:

• OsCIPK31, a CBL-interacting protein kinase is involved in germination and seedling growth under abiotic stress conditions in rice plants .  DOI:  10.1007/s10059-010-0084-1 ;  PMID:  20652492
• Calcium sensors and their interacting protein kinases: genomics of the Arabidopsis and rice CBL-CIPK signaling networks .  DOI:  10.1104/pp.103.033068 ;  PMID:  14730064
• Characterization of stress-responsive CIPK genes in rice for stress tolerance improvement .  DOI:  10.1104/pp.107.101295 ;  PMID:  17535819
• Isolation and characterization of a novel rice Ca2+-regulated protein kinase gene involved in responses to diverse signals including cold, light, cytokinins, sugars and salts .  DOI:  10.1023/b:plan.0000004330.62660.a2 ;  PMID:  14682618
• Rice Calcineurin B-Like Protein-Interacting Protein Kinase 31 (OsCIPK31) Is Involved in the Development of Panicle Apical Spikelets .  DOI:  10.3389/fpls.2018.01661 ;  PMID:  30524455

Related News:

Gene Resources:

• NCBI ID: AK111929  , AY256847
• UniProt accessions:

Sequences: